Nickolas Vlahopoulos

Test site 2/People/Nickolas Vlahopoulos

Professor nickvl& Graduate Program Chair
Professor Mechanical Engineering
Graduate Program Chair

214 NA&ME Bldg.
2600 Draper Road
Ann Arbor, Michigan 48109-2145
(734) 764-8341
E-mail: nickvl@umich.edu

Diploma National Technical University of Athens, 1985; Naval Architecture, Marine and Mechanical Engineering
M.S.E. University of Michigan, 1987; Naval Architecture and Marine Engineering
M.S.E. University of Michigan, 1988, Applied Mechanics
Ph.D. University of Michigan, 1989; Naval Architecture and Marine Engineering

  • Research Interests
  • Sponsored Research
  • Selected Publications
  • Student Dissertations
  • Scholars & Students
  • Courses Taught

Computational methods in structural acoustics, multi-discipline ship design, making design decisions under uncertainty, blast event simulations. Areas of expertise are in finite element and boundary element methods, energy finite element analysis, hybrid finite element analysis, blast and shock simulations, and in developing optimization algorithms for complex system design.

  1. “COMPASS: Commercial Object Model of Product/Process for an Advanced Shipbuilding System,” (9/1/96-6/1/99, my portion of the contract is $50,000 sponsored by DARPA #035147). PD: B. Bongiorni, PI: N. Vlahopoulos.
  2. “Modeling of spot welded and beam to plate joints using an Energy Finite Element Formulation for high frequency vibration and acoustic analysis,” (11/1/96-12/31/98, $90,000 sponsored by Automated Analysis Corporation and Ford Motor Co. #374786). PD: N. Vlahopoulos, supported 1 GSRA.
  3. “Acoustic radiation of a structural panel under random excitation and computation of the structural/acoustic sensitivity,” (1/1/97-12/31/98, $15,000 sponsored by Rackham School of Graduate Studies #386610). PD: N. Vlahopoulos, supported 1 GSRA.
  4. NASA Summer Faculty Fellowship in Aeronautics and Space Research, NASA Langley Research Center, Structural-Acoustics Branch (6/2/97-8/10/97, $10,000). PD: N. Vlahopoulos.
  5. “Development of a structural-acoustic sensitivity under random excitation for reducing wind noise in a vehicle,” (2/1/98-12/31/98, $20,000 Ford Motor Co. #376088). PD: N. Vlahopoulos, supported 1 GSRA.
  6. “Feasibility study on the utilization of EFEA methods for noise and vibration reduction in fishing boats,” (1/1/98-8/1/98, $10,000 Michigan Sea Grant #139380). PD: N. Vlahopoulos.
  7. “A Dynamic Analysis of the Crankshaft Block System in an Internal Combustion Engine,” (9/1/97-12/31/01, $135,000 NSF #036235). PD: N. Vlahopoulos, supported 1 GSRA.
  8. “Development and validation of a virtual pass-by noise simulation environment,” (3/1/98-12/31/00, $120,000 University Research Project, Ford Motor Co. #376105). Awarded through an international competition with success rate 9.5%. PD: N. Vlahopoulos, supported 1 GSRA.
  9. “Simulation Based Design for Internal Combustion Engines,” ($15,000 Automated Analysis Corp. #376476) PD: N. Vlahopoulos.
  10. “National Defense Science & Engineering Graduate Fellowship,” (9/1/98-8/31/01, $110,000 O.N.R. #037489) PD: N. Vlahopoulos, supported 1 GSRA.
  11. “Cabin Noise Analytical Prediction Methodology,” ($50,000 11/1/98-12/31/99, $25,000 1/1/00-12/1/00, #037806 sponsored by Bell Helicopter for my participation in a project sponsored by NRTC/DAUP Program.) PD: N. Vlahopoulos.
  12. “Modeling of Noise from the Propulsion System of a Fishing Boat/Ship and Development of Noise Reduction Techniques,” (3/1/99-3/1/01, $80,000 Michigan Sea-Grant, #038259) PD: N. Vlahopoulos, supported 1 GSRA.
  13. “Analyses of Marine Structures using Conventional Finite Element and Energy Finite Element Methods,” (12/1/98-10/1/99, $38,000 O.N.R., #037879) PD: N. Vlahopoulos.
  14. “Simulation based design for engine crankshaft dynamics,” (5/1/99-5/1/04, $200,000 Federal Mogul, #376993) PD: N. Vlahopoulos, supported 1 GSRA.
  15. “Development of a structural-acoustic sensitivity under random excitation for reducing wind noise in a vehicle, Phase II” (5/1/99-12/31/99, $20,000 Ford Motor Co. #992856) PD: N. Vlahopoulos.
  16. “Development of Hybrid FEA method for Mid-Frequency Computations,” (5/1/99-5/1/00, $45,000, Automotive Research Center, US Army Tank Automotive Command, #080474-0) PI: N. Vlahopoulos, supported 1 GSRA.
  17. “Coupling of beam and plate members in a Hybrid FEA formulation for Mid-Frequency Computations,” (5/1/00-6/31/04, $260,000, Automotive Research Center, US Army Tank Automotive Command, #080474-0) PI: N. Vlahopoulos, supported 1 GSRA.
  18. “Testing of automotive structures for validating mid-frequency developments in the hybrid FEA method,” (in-kind support provided by Ford Motor Co., $100,000) PD: N. Vlahopoulos.
  19. “Modeling of plate stiffeners in a hybrid FEA formulation for mid and high frequency vibration analysis of naval structures,” (2/15/2000-1/30/2004, $180,000, ONR, #039708) PD: N. Vlahopoulos, supported 1 GSRA.
  20. “Coupled Finite Element/Energy Finite Element Modeling of a Turbulent Boundary Layer Excited Submersible Structure,” (7/1/00-3/1/04, $720,000, ONR; $370,000, #039752 to UM and $350,000 to Newport News Shipbuilding) PD: N. Vlahopoulos, supported 1 GSRA.
  21. “High Frequency Computation of a Generic Model of the Mk48 Torpedo Using Energy Finite Element Analysis and Statistical Energy Analysis,” (2/22/01-9/30/01, $15,000, UNWC, Rhode Island, F004414) PD: N. Vlahopoulos.
  22. “Energy Finite Element Analysis for Computing the High Frequency Vibration of the Aluminum Testbed Cylinder and Correlation to Test Data,” (NASA Langley Research Center, 5/1/03-5/1/04, $70,000) PD: N. Vlahopoulos.
  23. “Energy Finite Element Simulation for Self-Noise Concerns in a Torpedo” (NUWC, 6/1/03 – 12/1/03, $30,000) PD: N. Vlahopoulos.
  24. “Investigation on Metamodel Developments by the Kriging Method,” (ARC, 6/1/03 – 9/1/03, $15,000) PD: N. Vlahopoulos.
  25. “Advanced Energy Finite Element/Energy Boundary Element Developments for Surface Ships,” (ONR, 3/1/04 – 2/28/07, $500,000 : $300,000 to UM and $200,000 to Northrop Grumman Newport News) PD: N. Vlahopoulos, supports 1 GSRA.
  26. “A New Joint Formulation for Modeling Acoustic Treatment and Trim Panels in the Energy Finite Element Analysis; Theoretical development, Numerical Implementation, and Validation to test data,” (NASA Langley Research Center, 4/1/03-4/1/07, $170,000) PD: N. Vlahopoulos, supports 1 GSRA.
  27. “Energy Finite Element Simulations for assessing damage in an Army vehicle due to high frequency vibration induced by a blast/shock load,” ARC III project, Thrust Area III, 7/1/04-6/31/09, $435,000) PD: N. Vlahopoulos, supports 1 GSRA.
  28. “Energy boundary element analysis for predicting the acoustic field around an aircraft due to engine noise,” (NASA Langley Research Center, 12/6/2004-10/31/2005, $71,000) PD: N. Vlahopoulos.
  29. “Dynamic Response of a Complex Ship Structure to Time Dependent Fluid Pressure Loads from Slamming,” (ONR, 9/06 – 9/08, $300,000) Co-PI: N. Vlahopoulos.
  30. “Energy Finite Element Developments for Composite Rotorcraft Structures,” (NASA Langley Research Center, 2/2007 – 2/2011, $600,000) PD: N. Vlahopoulos.
  31. “Energy Finite Element Developments for Shock Analysis of Composite Vehicles,” (US Army Research Office, 3/2007 – 3/2010, $210,000) PD: N. Vlahopoulos.
  32. “Multi-Disciplinary Design under Uncertainty for Surface Ships,” (ONR, 3/2007 – 7/2011, $250,000) PD: N. Vlahopoulos
  33. “Energy Finite Element Developments for Solid Domains,” (ONR, 2/2007 – 2/2011, $300,000 to UM, $200,000 to Northrop Grumman Newport News) PD: N. Vlahopoulos
  34. “T-Craft project: Elasto-dynamic analysis,” (ONR, 2/1/08 – 2/1/11, $200,000) PD: N. Vlahopoulos
  35. “Multi-scale simulations for developing light weight vehicles with increased survivability to loads from explosions and high velocity projectiles,” ARC III project, Thrust Area III, 7/1/09-12/31/12, $350,000) PD: N. Vlahopoulos, supports 1 GSRA
  36. “Investigation of energy focusing on a target structure from multiple underwater charges,” ULI Program, in collaboration with NSWC/Indian Head, (1/1/10 – 1/1/13, $225,000) PD: N. Vlahopoulos.
  37. “Response Variance Prediction in the Energy Finite Element Analysis (EFEA),” ONR, (2/1/2012-2/1/2013, $100,000) PD: N. Vlahopoulos

Articles in Refereed Journals, Transactions or Archives

  1. N. Vlahopoulos, K. Wu, S. Medyanik, “Energy Finite Element Analysis for Structural-Acoustic Design of Naval Vehicles,” Journal of Ship Production and Design, Vol. 28, No. 1, February 2012, pp. 42–48.
  2. S. Lee, N. Vlahopoulos, A. Waas, “”Vibratory power transmission through coupled composite plates with joint compliance and damping,” accepted for publication by Journal of Vibration and Control.
  3. J. He, S. Hannapel, D. J. Singer, N. Vlahopoulos, “Multidisciplinary Design Optimization of a Ship Hull Using Metamodels,” Ship Technology Research, Vol. 58, No. 3, Sept. 2011, pp. 156 – 167.
  4. J. P. Kim, N. Vlahopoulos, G. Zhang, “Development of Blast Event Simulation Process for Multi-Scale Modeling of Composite Armor for Light Weight Vehicles,” accepted for publication by International Journal of Vehicle Design.
  5. K. Maki, R. Sbragio, N. Vlahopoulos, “System design of a wind turbine using a multi-level optimization approach,” Renewable Energy, 2012, 1-10.
  6. N. Vlahopoulos, S. Lee, N. Schiller, “Energy Finite Element Analysis Developments for Vibration Analysis of Composite Aircraft Structures,” SAE International Journal of Aerospace, SAE- 2011-01-1734, November 2011.
  7. C.G. Hart, R. Sbragio, Z. He, N. Vlahopoulos, “An Advanced Cost Estimation Methodology for Engineering Systems,” Systems Engineering, Volume 14, Number 4, 2011.
  8. S. Hannapel, N. Vlahopoulos, “Introducing Uncertainty in Multidiscipline Ship Design,” Naval Engineers Journal, 2010, Vol. 122, No. 2, pp. 41-52.
  9. K. J. Maki, D. Lee, A. W. Troesch, N. Vlahopoulos, “Hydroelastic Impact of a Wedge-Shaped Body,” Ocean Engineering, Volume 38, Issue 4, March 2011, Pages 621–629.
  10. C.G. Hart, N. Vlahopoulos, “A Multidisciplinary Design Optimization Approach to Relating Affordability and Performance in a Conceptual Submarine Design,” Journal of Ship Production and Design, Vol. 26, No. 4, November 2010, pp. 273–289.
  11. S. Lee, N. Vlahopoulos, A. Waas, “Analysis of wave propagation in a thin composite cylinder with periodic axial and ring stiffeners using periodic structure theory,” Journal of Sound and Vibration, Volume 329, Issue 16, 2 August 2010, Pages 3304-3318.
  12. A. Wang, N. Vlahopoulos, “Vehicle NVH Analysis Using EFEA and EBEA Methods,” SAE Int. J. Passeng. Cars – Mech. Syst., 2(1): 814-821, 2009.
  13. C. G. Hart, N. Vlahopoulos, “An integrated multidisciplinary particle swarm optimization approach to conceptual ship design,” Structural and Multidisciplinary Optimization, Volume 41, Number 3, 481-494.
  14. J. He, G. Zhang, N. Vlahopoulos, “Uncertainty propagation in Multi-Disciplinary Design Optimization of Undersea Vehicles,” 2008 SAE Congress, SAE Int. J. Mater. Manuf. Vol1, No.1, pp. 70 – 79, 2008.
  15. G. Zhang, N. Vlahopoulos, “A substructuring formulation for the energy finite element analysis,” SAE Paper No. 2007-01-2325, SAE 2007 Transactions Journal of Passenger Cars – Mechanical Systems.
  16. G. Zhang, and N. Vlahopoulos, “Validation of an EFEA formulation for computing the vibrational response of complex structures,” SAE Paper No. 2007-01-2324, SAE 2007 Transactions Journal of Passenger Cars – Mechanical Systems.
  17. S.B. Hong, N. Vlahopoulos, “A hybrid finite element formulation for computing structure – borne vibration in a body in white,” SAE Paper 2006-01-1224, SAE 2006 Transactions Journal of Passenger Cars – Mechanical Systems.
  18. J. Sun, N. Vlahopoulos, T. J. Stabryla, R. Goetz, R. Van De Velde, “Simulations under uncertainty for occupant safety for a vehicle subjected to a blast load,” SAE Paper 2006-01-0762, SAE 2006 Transactions Journal of Materials and Manufacturing.
  19. S.B. Hong, A. Wang, N. Vlahopoulos, “A Hybrid Finite Element Formulation for a beam plate system,” Journal of Sound and Vibration, Vol. 298, 2006, pp. 233 – 256.
  20. J. Wang, N. Vlahopoulos, Z. P. Mourelatos, O. Ebrat, K. Vaidyanathan, “Probabilistic and Sensitivity Analyses for the Performance Characteristics of the Main Bearings in an Operating Engine due to Variability in Bearing Properties,” International Journal of Vehicle Design, Vol. 40, No. 4, 2006, pp. 265 – 298.
  21. Jin Wang, N. Vlahopoulos, Z. P. Mourelatos, O. Ebrat, K. Vaidyanathan, “Probabilistic Computations for the Main Bearings of an Operating Engine due to Variability in Bearing Properties,” 2004 SAE Transactions Journal of Materials and Manufacturing, SAE paper number 2004-01-1143.
  22. Z. P. Mourelatos, N. Vlahopoulos, O. Ebrat, J. Liang, J. Wang, “Probabilistic Main Bearing Performance for an Internal Combustion Engine,” Journal of Tribology, v. 127, n 4, October, 2005, p 784-792.
  23. O. Ebrat, Z. P. Mourelatos, N. Vlahopoulos, K. Vaidyanathan, “Oil Film Characteristics for Journal Bearing Elastohydrodynamic Analysis based on a Finite Difference Formulation,” SAE Paper 2003-01-1669, SAE Journal of Passenger Cars – Mechanical Systems, September 2004.
  24. Jun Dong, K. K. Choi, A. Wang, W. Zhang, and N. Vlahopoulos, “Parametric Design Sensitivity Analysis of High Frequency Structural-Acoustic Problems using Energy Finite Element Method,” International Journal for Numerical Methods in Engineering, v 62, n 1, Jan 7, 2005, p 83-121.
  25. W. Zhang, N. Vlahopoulos, K. Wu, “An Energy Finite Element Formulation for High Frequency Vibration Analysis of Externally Fluid-Loaded Cylindrical Shells with Periodic Circumferential Stiffeners subjected to Axi-Symmetric Excitation” Journal of Sound and Vibration, Vol. 282, April 22 2005, p. 679-700.
  26. W. Zhang, N. Vlahopoulos, K. Wu, A. Wang “High Frequency Vibration Analysis of Stiffened Plates under Heavy Fluid Loading by an Energy Finite Element Analysis Formulation,” Finite Elements in Analysis and Design, v 41, n 11-12, June, 2005, p 1056-1078.
  27. C. Pierre, N. Vlahopoulos, Z. D. Ma, M. P. Castanier. S. Y. Lee, A. Wang, K. K. Choi, N. H. Kim, and J. Dong “Advanced Structure Methodologies for Next-Generation Ground Vehicles, Part 1: Basic Theories,” International Journal of Heavy Vehicle Systems, Vol. 11, Nos. 3/4, pp. 257-281 (invited contribution).
  28. C. Pierre, N. Vlahopoulos, Z. D. Ma, M. P. Castanier. S. Y. Lee, A. Wang, K. K. Choi, N. H. Kim, and J. Dong “Advanced Structure Methodologies for Next-Generation Ground Vehicles, Part 2: Case Study,” International Journal of Heavy Vehicle Systems, Vol. 11, Nos. 3/4, pp. 282-302 (invited contribution).
  29. O. Ebrat, Z. P. Mourelatos, N. Vlahopoulos, K. Vaidyanathan, “Calculation of Journal Bearing Dynamic Characteristics Including Journal Misalignment and bearing Structural Deformation,” STLE Tribology Transactions, Vol. 47, pp. 94-102, 2004.
  30. A. Wang, N. Vlahopoulos, and K. Wu, “Development of an energy boundary element formulation for computation of sound radiation at high frequency,” Journal of Sound and Vibration, Vol. 278, 2004, pp. 413-436.
  31. O. Ebrat, Z. P. Mourelatos, K. Hu, N. Vlahopoulos, K. Vaidyanathan, “An Elastohydrodynamic Coupling of a Rotating Crankshaft and a Flexible Engine Block,” ASME Journal of Tribology, Vol. 126, pp. 233-241, 2004.
  32. X. Zhao, N. Vlahopoulos, “A Basic Hybrid Finite Element Formulation for Mid-Frequency Analysis of Beams Connected at an Arbitrary Angle,” Journal of Sound and Vibration, Vol. 269, No. 6, January 2004, pp. 135-164.
  33. K. Hu, N. Vlahopoulos, and Z. Mourelatos “Rigid and flexible dynamic response of a rotating shaft on flexible supports with clearances,” Journal of Sound and Vibration, Vol. 267, No. 1, 9 October 2003, pp. 1-28.
  34. W. Zhang, A. Wang, N. Vlahopoulos, and K. Wu, “High Frequency Vibration Analysis of Thin Elastic Plates under Heavy Fluid Loading by an Energy Finite Element Method,” Journal of Sound and Vibration, Vol. 263(1), 22 May 2003, pp. 21-46.
  35. N.H. Kim, J. Dong, K. K. Choi, N. Vlahopoulos, Z.D. Ma, M. P. Castanier, C. Pierre, “Design Sensitivity Analysis for a Sequential Structural-Acoustic Problem,” Journal of Sound and Vibration, Vol. 263(3), 5 June 2003, pp. 569-591.
  36. Z. Zhang, N. Vlahopoulos, S. T. Raveendra, “Formulation of a numerical process for acoustic impedance sensitivity analysis based on the indirect boundary element method,” Engineering Analysis with Boundary Elements (invited contribution), Vol. 27, 2003, pp. 671-681.
  37. Z. Zhang, N. Vlahopoulos, T. Allen, and K. Y. Zhang, “Development and validation of a computational process for pass-by noise simulation,” International Journal of Vehicle Design, Vol. 34, No. 1, 2004, pp. 12-34.
  38. M. J. Allen, N. Vlahopoulos, “Numerical Probabilistic Analysis of Structural/Acoustic Systems,” Mechanics of Structures and Machines, Vol. 30, No. 3, July 2002, pp. 353-380.
  39. W. Zhang, A. Wang, and N. Vlahopoulos, “An Alternative Energy Finite Element Formulation based on Incoherent Orthogonal Waves and its Validation for Marine Structures,” Finite Elements in Analysis and Design, Vol.38, 2002, pp. 1095-1113.
  40. K. Hu, N. Vlahopoulos, and Z. Mourelatos, “A Finite Element Formulation for Coupling Rigid and Flexible Body Dynamics of Rotating Beams,” Journal of Sound and Vibration, Vol.253, No.3, 2002, pp.603-630.
  41. M. J. Allen, R. Sbragio, and N. Vlahopoulos, “Structural/Acoustic Sensitivity Analysis of a Structure Subjected to Stochastic Excitation,” AIAA Journal, Vol. 39, No. 7, 2001, pp. 1270-1279,
  42. M.J. Allen, N. Vlahopoulos, “Noise Generated from a Flexible and Elastically supported Structure subject to Turbulent Boundary Layer Flow Excitation,” Finite Elements in Analysis and Design, Vol.37/9, August 2001, pp. 687-712.
  43. Z. Zhang, N. Vlahopoulos, S. T. Raveendra, T. Allen, and K. Zhang, “A Computational Acoustic Field Reconstruction Process based on an Indirect Boundary Element Formulation,” Journal of the Acoustical Society of America, Vol. 108, No. 5, November 2000, pp. 2167-2178.
  44. N. Vlahopoulos, X. Zhao, “An Investigation of Power Flow in the Mid-Frequency Range for Systems of Co-Linear Beams Based on a Hybrid Finite Element Formulation,” Journal of Sound and Vibration, Vol. 242(3), 3 May 2001, pp. 445-473.
  45. X. Zhao, N. Vlahopoulos, “Mid-Frequency Vibration Analysis of Systems Containing one Type of Energy based on a Hybrid Finite Element Formulation,” SAE Paper No. 2001-01-1620, SAE Journal of Passenger Car – Mechanical Systems, 2001, Vol. 110, pp. 2119-2134.
  46. W. Zhang, A. Wang, N. Vlahopoulos, “Validation of the EFEA Method through Correlation with Conventional FEA and SEA Results,” SAE Paper No. 2001-01-1618, SAE Journal of Passenger Car – Mechanical Systems, 2001, Vol. 110, pp. 2104-2119.
  47. M. J. Allen, N. Vlahopoulos, “Accounting for Manufacturing Variability in Interior Noise Computations,” SAE Paper No. 2001-01-1527, SAE Journal of Materials and Manufacturing, 2001, Vol. 110, pp. 967-976.
  48. Z. Zhang, N. Vlahopoulos, T. Allen, and K. Zhang, “A Source Reconstruction Process based on an Indirect Variational Boundary Element Formulation,” Journal of Engineering Analysis with Boundary Elements, Vol. 25, 2001, pp. 93-114.
  49. X. Zhao, N. Vlahopoulos, “A Hybrid Finite Element Formulation for Mid-Frequency Analysis of Systems with Excitation Applied on Short Members,” Journal of Sound and Vibration, Vol. 237(2), October 19, 2000, pp. 181-202.
  50. G. A. Borlase, N. Vlahopoulos, “An Energy Finite Element Optimization Process for Reducing High Frequency Vibration in Large Scale Structures,” Journal of Finite Element Analysis and Design, Vol. 36, 2000, pp. 51-67.
  51. S. T. McGee, A. W. Troesch, and N. Vlahopoulos, “Damage Length Predictor for High Speed Craft,” Marine Technology, Vol. 36, No. 4, Fall 1999, pp. 203-210.
  52. J. D. Reeves and N. Vlahopoulos, “Optimized Alignment of a USCG Polar Class Icebreaker Wing Shaft Using a Distributed Bearing Finite Element Model,” Marine Technology, Vol. 36, No. 4, Fall 1999, pp. 238-247.
  53. M. J. Allen, and N. Vlahopoulos, “Integration of Finite Element and Boundary Element Methods for Calculating the Radiated Sound from a Randomly Excited Structure,” Computers and Structures, Vol. 77, No. 2, 2000, pp. 155-169.
  54. N. Vlahopoulos, and X. Zhao, “A Basic Development of a Hybrid Finite Element Method for Mid-Frequency Computations of Structural Vibrations,” AIAA Journal, Vol. 37, No. 11, November 1999, pp. 1495-1505.
  55. N. Vlahopoulos, Xi Zhao, and T. Allen, “An Approach for Evaluating Power Transfer Coefficients for Spot-Welded Joints in an Energy Finite Element Formulation,” Journal of Sound and Vibration, Vol. 220, No. 1, 1999, pp.135-154.
  56. N. Vlahopoulos, L.O. Garza-Rios, and C. Mollo, “Numerical Implementation, Validation, and Marine Applications of an Energy Finite Element Formulation,” Journal of Ship Research, Vol. 43, No. 3, Sept. 1999, pp. 143-156.
  57. N. Vlahopoulos, and Y. Kalish, “Development of an Equivalent Force Method and an Application in Simulating the Radiated Noise from an Operating Diesel Engine,” Shock and Vibration Journal, Vol. 6, No. 3, 1999, pp. 113-123.
  58. M. J. Allen, N. Vlahopoulos, “Integration of Finite Element and Boundary Element Methods for Simulating the Noise Radiated from a Flexible Panel Subjected to Boundary Layer Excitation,” SAE Paper Number 1999-01-1795, SAE Journal of Passenger Car, 1999, Vol 108, pp. 2951-2958.
  59. N. Vlahopoulos, S.T. Raveendra, C. Vallance, and S. Messer, “A Coupling Algorithm for Structural-Acoustic Models with Unequal Discretization and Partially Interfacing Surfaces,” Finite Element in Analysis and Design, Vol. 32, 1999, pp. 257-277.
  60. N. Vlahopoulos, C. Vallance, and R.D. Stark III, “Computing the Noise Induced Vibration of an Expanding Nozzle of a Rocket Engine due to Acoustics Loads,” AIAA Journal of Spacecraft and Rockets, Vol. 35, No. 3, May-June 1998, pp. 355-360.
  61. S. T. Raveendra, N. Vlahopoulos, and A. Glaves, “An Indirect Boundary Element Formulation for Multi-Valued Impedance Simulation in Structural Acoustics,” Applied Mathematical Modeling, Vol. 22, 1998, pp. 379-393.
  62. N. Vlahopoulos and S.T. Raveendra, “Formulation, Implementation, and Validation of Multiple Connection and Free Edge Constraints in an Indirect Boundary Element Formulation,” Journal of Sound and Vibration, Vol. 210, No.1, 1998, pp. 137-152.
  63. B. K. Gardner, J.S. Bolton, S.T. Raveendra, and N. Vlahopoulos, “Radiation Efficiency Calculations for Verification of Boundary Element Acoustic Codes,” Noise Control Engineering Journal, Vol. 44, No. 5, Sept./Oct. 1996, pp. 215-223.
  64. T.C. Tecco, N. Vlahopoulos, and E.J. Vorenkamp, “Application of Numerical Acoustic Methods to Noise Reduction in Vehicle Compartments,” SAE Paper No.932433, SAE Journal of Commercial Vehicles, 1993, Vol. 102, pp. 355-360.
  65. N. Vlahopoulos, “A Numerical Structure-Borne Noise Prediction Scheme Based on the Boundary Element Method, with a New Formulation for the Singular Integral,” Computers and Structures, Vol. 50, No. 1, 1994, pp. 97-110.
  66. N. Vlahopoulos and M.M. Bernitsas, “Static, Dynamic, and Eigen Analysis of Non-Integral Production Risers,” Applied Ocean Research, Vol. 10, No. 3, July 1988.
  67. M. M. Bernitsas and N. Vlahopoulos, “Static Non-Linear Three-Dimensional Analysis of a Riser Bundle by a Substructuring and Incremental Finite Element Algorithm,” International Journal for Numerical Methods in Engineering, Vol.28, 1989, pp. 2517-2540.
  68. N. Vlahopoulos and M.M. Bernitsas, “Three-Dimensional Nonlinear Dynamics of Nonintegral Riser Bundle,” Journal of Ship Research, 1991.
  69. M. M. Bernitsas and N. Vlahopoulos, “Three-Dimensional Nonlinear Static of Pipelaying Using Condensation in an Incremental Finite Element Algorithm,” Computers and Structures, Vol. 35, No. 3, pp. 195-214, 1990.
  70. N. Vlahopoulos and M.M. Bernitsas, “Three-Dimensional Nonlinear Dynamics of Pipelaying,” Applied Ocean Research, Vol. 12, No. 3, 1990.

Shorter Communications, Letters, Notes or Briefs in Refereed Publications

  1. N. Vlahopoulos, K.H. Lyle, and C.L. Burley, “Technical Note: Preliminary Work for Modeling the Propellers of an Aircraft as a Noise Source in an Acoustic Boundary Element Analysis,” Noise Control Engineering Journal, Vol. 46, No. 3, 1998, pp. 132-136. (invited contribution).

Refereed Conference or Symposium Proceedings

  1. Jin Wang, N. Vlahopoulos, D. J. Gorshich, “Metamodel development based on a non-parametric isotropic covariance estimator and application in a V6 engine,” SAE World Congress 2004, SEA paper number 2004-01-1142.
  2. S. B. Hong, N. Vlahopoulos, “A Hybrid Finite Element Formulation for Analyzing Systems of Beams and Plates in the Mid-Frequency Range,” SAE Noise and Vibration Conference, Traverse City, May 2003, SAE Paper 2003-01-1610.
  3. O. Ebrat, Z. P. Mourelatos, K. Hu, N. Vlahopoulos, K. Vaidyanathan, “Structural Vibration of an Engine Block and a Rotating Crankshaft coupled through Elastohydrodynamic Bearings,” SAE Noise and Vibration Conference, Traverse City, May 2003, SAE Paper 2003-01-1724.
  4. J. Wang, N. Vlahopoulos, Z. P. Mourelatos, O. Ebrat, K. Vaidyanathan, “Probabilistic Analysis for the Performance of Engine Bearings due to Variability in Bearing Properties,” SAE Noise and Vibration Conference, Traverse City, May 2003, SAE Paper 2003-01-1733.
  5. A. Wang, N. Vlahopoulos, K. Wu, “An Energy Boundary Element Formulation for Sound Radiation at High Frequencies, Internoise 2002, Dearborn, MI.
  6. W. Zhang, A. Wang, N. Vlahopoulos, K. Wu, “High Frequency Vibration Analysis of Heavy Fluid-Loaded Plates by an Energy Finite Element Analysis Formulation,” Internoise 2002, Dearborn, MI.
  7. N. Vlahopoulos, J. Wang, K. Hu, Z. Mourelatos, “Rigid and Flexible Dynamic Response of a Rotating Shaft on Flexible Supports with Clearances,” Internoise 2002, Dearborn, MI.
  8. N. Vlahopoulos, J. Wang, O. Ebrat, Z. Mourelatos, “An Efficient Finite Difference Formulation for Computing Main Bearing Hydrodynamic Characteristics,” Internoise 2002, Dearborn, MI.
  9. S. B. Hong, N. Vlahopoulos, “A Hybrid Finite Element Formulation for Analyzing Systems of Beams and Plates in the Mid-Frequency Range” Internoise 2002, Dearborn, MI.
  10. Z. Zhang, N. Vlahopoulos, S. T. Raveendra, T. Allen, and K. Y. Zhang, “A Computational Acoustic Field Reconstruction Process based on an Indirect Variational Boundary Element Formulation,” ASME IMECE, Nashville, TN, November 1999, pp. 43-50.
  11. G. Borlase, N. Vlahopoulos, “Design Optimization process for minimizing High Frequency Vibration based on an Energy Finite Element Formulation,” ASME IMECE, Nashville, TN, November 1999, pp. 51-60.
  12. M. J. Allen, N. Vlahopoulos, “Numerical Prediction of Noise Radiated from a Panel Subjected to Boundary Layer Excitation,” ASME IMECE, Nashville, TN, November 1999, pp. 67-75.
  13. X. Zhao, N. Vlahopoulos, “A Hybrid Finite Element Method for Calculating the Vibration of Co-Linear Beams in the Mid-Frequency Range,” ASME IMECE, Nashville, TN, November 1999, pp. 91-101.
  14. X. Zhao, N. Vlahopoulos, “Coupling of Finite Element and Energy Finite Element Solutions for Calculating the Vibration of Co-linear Beams in the Mid-Frequency Range,” SAE Noise and Vibration Conference 1999, SAE Paper Number 1999-01-1793, Traverse City, Michigan.
  15. N. Vlahopoulos, L. O. Garza-Rios, R. K. Nelson, “High Frequency Vibration Analysis Performed by a Statistical Energy Formulation and an Energy Finite Element Formulation,” 1998 International Mechanical Engineering Congress & Exhibition, Anaheim CA, November 1998, pp.355-364 (invited paper).
  16. N. Vlahopoulos, Y. Kalish, R.D. Stark III, “Simulation of the Noise Radiated from an Operating Diesel Engine,” 1997 International Mechanical Engineering Congress & Exhibition, Dallas, Texas, NCA-Vol. 24, Proceedings of the ASME Noise Control and Acoustics Division, pp. 279-284 (invited paper).
  17. N. Vlahopoulos, S.T. Raveendra, “A Formulation of Unequal Impedance Boundary Conditions in Boundary Element Acoustics,” 1997 International Mechanical Engineering Congress & Exhibition, Dallas, Texas, NCA-Vol. 24, Proceedings of the ASME Noise Control and Acoustics Division, pp. 337-342 (invited paper).
  18. N. Vlahopoulos, R.D. Stark III, and W. Kargus, “A New Methodology of Applying Measured Acceleration and Forces as Excitation on Powertrain Models for Noise Prediction,” Noise Control in Engines/Powertrain, 1996 ASME International Mechanical Engineering Conference and Exhibition, Atlanta, 1996 (invited paper).
  19. N. Vlahopoulos, E.V. Shalis, and M.A. Latcha, “A Numerical Approach for the Prediction and Reduction of Structure-Borne Noise During the Design Stage of Ground Vehicles,” presented at the 14th ASME Conference on Mechanical Vibration and Noise.
  20. G. Borlase, N. Vlahopoulos, L.O. Garza-Rios, “A Design Optimization Process based on an Energy Finite Element Formulation,” 1999 ASME DETC, September 12-16, 1999, Las Vegas, Nevada. (invited paper)
  21. N. Vlahopoulos, T. Allen, X. Zhao, “An Approach for Modeling Spot-Welded Joints in an Energy Finite Element Formulation,” Noise-Con ’98, pp. 347-352.
  22. N. Vlahopoulos, K.H. Lyle, and C.L. Burley, “A Formulation and Preliminary Validation of an Algorithm Prescribing the Propellers of an Aircraft as Excitation in a Boundary Element Analysis,” Noise-Con ’98, pp. 639-642.
  23. C. Birkett, N. Vlahopoulos, E. Shalis, Z. Wu, “Numerical Load Generation, Vibration Analysis, and Acoustic Signature Prediction of a Ground Vehicle,” Noise-Con 97, pp. 123-128.
  24. N. Vlahopoulos, S. Raveendra, B.K. Gardner, and S. Messer “Numerical Computation of Noise Transmitted Inside a Payload Fairing due to External Reverberant Field Excitation,” Proceedings Noise-Con ’96, pp. 775-778, Sept. 29-Oct. 2, 1996, Seattle, Washington (invited paper).
  25. S. T. Raveendra and N. Vlahopoulos, “Simulation of Multi-Frequency Acoustic Problems Using Indirect Boundary Element Method,” Proceedings Noise-Con ’96, pp. 775-778, Sept. 29-Oct. 2, 1996, Seattle, Washington.
  26. C. Vallance and N. Vlahopoulos, “Structural Noise Induced Vibration Prediction for a Component of a Launch Vehicle,” Internoise 1995, July 10-12 1995, pp.1303-1306.
  27. N. Vlahopoulos, S. Raveendra, and C. Mollo, “Acoustic Sensitivity Analysis Using Boundary Elements and Structural Dynamic Response,” The 1994 MSC User’s Conference, June 20-24, 1994.
  28. N. Vlahopoulos, C. Dagg, and R.J. Bernhard, “Computation of Sensitivities for Passive Noise Control,” presented at Noise-Con ’93, Williamsburg, Virginia, May 1993, pp. 529-534.
  29. N. Vlahopoulos, “Boundary Element Formulations for Acoustic Sensitivities with Respect to Structural Design Variables, and Acoustic Impedance,” presented at the Second International Congress on Recent Developments in Air- and Structure-borne Sound and Vibration, Auburn University, March 1992, pp. 1019-1026.
  30. F. Aslani, N. Vlahopoulos, and I. Hagiwara, “Comparison of Four Methods for Calculating Vibration Mode Shape Sensitivities,” presented in the ADPA/AIAA/ASME/SPIE Conference on Active Materials and Adaptive Structures, Alexandria, VA, November 1991.
  31. X. Zhao, N. Vlahopoulos, “An Investigation of Power Flow in the Mid-Frequency Range for Systems of Co-Linear Beams based on a Hybrid Finite Element Formulation,” 2000 International Mechanical Engineering Congress & Exhibition, Orlando,Florida, NCA-Vol. 27, Proceedings of the ASME Noise Control and Acoustics Division, pp. 81-100.
  32. Xi Zhao, N. Vlahopoulos, “A Hybrid Finite Element Formulation for Mid-Frequency Analysis of Systems with Excitation Applied on Short Members,” NCA-Vol. 27, Proceedings of the ASME Noise Control and Acoustics Division, pp. 101-116.
  33. Zhidong Zhang, N. Vlahopoulos, T. Allen, and K. Y. Zhang, “A Source Reconstruction Process based on an Indirect Variational Boundary Element Formulation,” NCA-Vol. 27, Proceedings of the ASME Noise Control and Acoustics Division, pp. 367-376.
  34. M. J. Allen, N. Vlahopoulos, B. J. Saltsman, “Computation of Wind Noise Radiated from a Flexible and Elastically Supported Panel,” 2001 SAE Noise and Vibration Conference, SAE Paper No. 2001-01-1495.
  35. Z. Zhang, N. Vlahopoulos, T. Allen, K. Zhang, X. Huang, D. Moenssen, “Development and Validation of a Computational Process for Pass-by Noise Simulation,” 2001 SAE Noise and Vibration Conference, SAE Paper No. 2001-01-1561.
  36. K.K. Choi, J. Dong, N. Vlahopoulos, A. Wang, W. Zhang, “Parametric Design Sensitivity Analysis of High Frequency Structural-Acoustic Problems using Energy Finite Element Method,” ASME DAC Conference 2003, Best Paper Award.
  37. A. Wang, N. Vlahopoulos, R. D. Buehrle, and J. Klos, “Energy Finite Element Analysis of the NASA Aluminum Test-Bed Cylinder,” SAE Paper No. 2005-01-2372, 2005 SAE Noise and Vibration Conference, Traverse City, MI.
  38. S.B. Hong, N. Vlahopoulos, R. Mantey, D. Gorsich, “A Computational Approach for Evaluating the Acoustic Detection of a Military Vehicle,” SAE Paper No. 2005-01-2337, 2005 SAE Noise and Vibration Conference, Traverse City, MI.
  39. S. B. Hong, N. Vlahopoulos, “A Hybrid Finite Element Formulation for Analyzing the Structure-Borne Noise in a Body-in-White,” SAE Paper No. 2005-01-2421, 2005 SAE Noise and Vibration Conference, Traverse City, MI.
  40. J. Sun, N. Vlahopoulos, K. Hu, “Model update under uncertainty and error estimation in shock applications,” SAE Paper No. 2005-01-2373, 2005 SAE Noise and Vibration Conference, Traverse City, MI.
  41. N. Vlahopoulos, A. Wang, K. Wu, “An EFEA formulation for computing the structural response of complex structures,” Proceedings of IMECE 05, 2005 ASME IMECE, November 5 – 11, 2005, Orlando FL, Paper Number IMECE2005-81113.
  42. J. Sun, N. Vlahopoulos, T. J. Stabryla, R. Goetz, R. Van De Velde, “Blast event simulation for a structure subjected to a landmine explosion,” 2006 SAE Congress, SAE Paper 2006-01-0931.
  43. N. Vlahopoulos, S. Li, J. Sun, “Combining energy boundary element and energy finite element simulations for airborne noise analysis,” Proceedings of IMECE06, 2006 ASME International Mechanical Engineering Congress and Exposition, November 2006, Chicago, Illinois, USA, IMECE Paper 2006-14117.
  44. G. Zhang, N. Vlahopoulos, J. Sun, “Substructuring developments in the energy finite element formulation,” Proceedings of IMECE06, 2006 ASME International Mechanical Engineering Congress and Exposition, November 2006, Chicago, Illinois, USA, IMECE Paper 2006-14114.
  45. J. Sun, G. Zhang, N. Vlahopoulos, S-B. Hong, “Multi-disciplinary design optimization under uncertainty for thermal protection system applications,” 11th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, September 2006, Portsmouth, Virginia, AIAA Paper 2006-7002.
  46. J. Sun, J. He, N. Vlahopoulos, P. van Ast, “Model update and variability assessment for automotive crash simulations,” XXVI International Modal Analysis Conference, 2007, Orlando Fl, February 2007, IMAC-Paper No. 199.
  47. G. Zhang, N. Vlahopoulos, R. Goetz, R. Van De Velde, “Blast event simulations for a vehicle structure subjected to an explosion,” XXVI International Modal Analysis Conference, 2007, Orlando Fl, February 2007, IMAC-Paper No. 200.
  48. G. Zhang, N. Vlahopoulos, “An energy based boundary element method for computing the acoustic field around a vehicle,” XXVI International Modal Analysis Conference, 2007, Orlando Fl, February 2007, IMAC-Paper No. 201.
  49. G. Zhang, N. Vlahopoulos, “Substructuring in an energy finite element formulation for analyzing complex structural-acoustic systems,” XXVI International Modal Analysis Conference, 2007, Orlando Fl, February 2007, IMAC-Paper No. 202.
  50. J. Sun, J. He, N. Vlahopoulos, P. van Ast, “Model update and statistical correlations metrics for automotive crash simulations,” 2007 SAE Congress, SAE Paper No. 2007-01-1744.
  51. N. Vlahopoulos, G. Zhang, J. He, “Combining an energy boundary element with an energy finite element analysis for airborne noise simulations,” 2007 SAE Noise and Vibration Conference, SAE Paper No. 2007-01-2178.
  52. N. Vlahopoulos, S. Li, M. Victorovitch, D. Caprioli, “Validation of a hybrid finite element formulation for mid-frequency analysis of vehicle structures,” 2007 SAE Noise and Vibration Conference, SAE Paper No. 2007-01-2303.
  53. G. Zhang, A. Wang, N. Vlahopoulos, “Utilization of Energy Finite Element Simulations in Multi-Discipline Optimization,” International Modal Analysis Conference, February 2008, Orlando, FL.
  54. G. Zhang, C. Hart, N. Vlahopoulos, K. Bishnoi, R. Goetz, R., F. Rostam-Abadi, “Simulation for the Response of a Structure Subjected to a Load from an Explosion,” 2008 SAE Congress, SAE Paper No. 2008-01-0781, April 2008.
  55. N. Vlahopoulos, A. Wang, “Combining Energy Boundary Element with Energy Finite Element Simulations for Vehicle Airborne Noise Predictions,” 2008 SAE Congress, SAE Paper No. 2008-01-0269, April 2008.
  56. N. Vlahopoulos, J. He, “Application of a multidiscipline design optimization approach for designing the thermal protection system of an Apollo type vehicle under uncertainty,” 2008 JANNAF Meeting, Orlando FL, December 2008.
  57. J. He, N. Vlahopoulos, “Utilization of Response Surface Methodologies in the Multi-discipline Design Optimization of an Aircraft Wing,” SAE Paper 2009-01-0344, 2009 SAE Congress.
  58. C. G. Hart, N. Vlahopoulos, “Integrating a particle swarm optimizer in a multi-discipline design optimization environment for conceptual ship design,” SAE Paper 2009-01-0368, 2009 SAE Congress.
  59. N. Vlahopoulos, J. He, “Designing the Thermal Protection System of an Apollo type vehicle under uncertainty,” SAE Paper 2009-01-0564, 2009 SAE Congress.
  60. C. G. Hart, and N. Vlahopoulos, “Relating affordability and performance metrics in a multidisciplinary conceptual submarine design optimization,” 2009 ASNE Day, April 2009.
  61. G. Zhang, A. Wang, N. Vlahopoulos, “Engaging Energy based Structural-Acoustic Simulations in Multi-Discipline Design,” SAE Paper 2009-01-2198, 2009 SAE Noise and Vibration Conference, May 2009.
  62. Washington deLima, N. Vlahopoulos, R. Sbragio, J. He, “Interior Aircraft Noise Computations due to TBL Excitation using the Energy Finite Element Analysis,” SAE Paper 2009-01-2248, 2009 SAE Noise and Vibration Conference, May 2009.
  63. J. He, G. Zhang, N. Vlahopoulos, “Vehicle airborne noise analysis using boundary element and finite element energy based methods,” SAE Paper 2009-01-2222, 2009 SAE Noise and Vibration Conference, May 2009.
  64. R. Sbragio, A. Wang, N. Vlahopoulos, D. Caprioli, C. Bertolini, “Structure-borne Vehicle Analysis using a Hybrid Finite Element Method,” SAE Paper 2009-01-2196, 2009 SAE Noise and Vibration Conference, May 2009.
  65. J. He, C. G. Hart, N. Vlahopoulos, “System Design of a Vehicle Structure by a Network of Optimizations,” Proceedings of the 2009 Ground Vehicle Systems Engineering and Technology Symposium (GVSETS), August 2009, Detroit, MI.
  66. N. Vlahopoulos, K. Wu, “Simulation Technology for Noise and Vibration Design of Naval Vehicles,” ASNE Day 2010, April 2010, Arlington, VA.
  67. J. He, G. Zhang, N. Vlahopoulos, “Design of an Undersea Vehicle through a Network of Optimizations,” MAST Americas, 2010, June 2010, Crystal City, VA.
  68. N. Vlahopoulos, K. Wu, “Structural-Acoustic Simulations of Naval Vehicles using an Energy Finite Element Method,” MAST Americas, 2010, June 2010, Crystal City, VA.
  69. G. Zhang, J. He, N. Vlahopoulos, “Multidisciplinary Design under Uncertainty for a Hypersonic Vehicle,” AIAA MDAO Conference 2010, Fort Worth, TX, Sept. 2010.
  70. S. Hannapel, N. Vlahopoulos, “Robust and Reliable Multidiscipline Ship Design,” AIAA MDAO Conference 2010, Fort Worth, TX, Sept. 2010.
  71. G. Zhang, R. Sbragio, N. Vlahopoulos, “Rotorcraft Gearbox Foundation Design by a Network of Optimizations,” AIAA MDAO Conference 2010, Fort Worth, TX, Sept. 2010.
  72. N. Vlahopoulos, G. Zhang, R. Sbragio, “Design of Rotorcraft Gearbox Foundation for Reduced Vibration and Increased Crashworthiness Characteristics,” SAE 2011-01-1704, SAE 2011 Noise and Vibration Conference, Grand Rapids, MI, May 2011.
  73. N. Vlahopoulos, R. Sbragio, A. Wang, “Modeling of Stiffened Panels Using the Energy Finite Element Analysis,” SAE 2011-01-1696, SAE 2011 Noise and Vibration Conference, Grand Rapids, MI, May 2011.
  74. N. Vlahopoulos, G. Zhang, “Utilizing Simulation Technology for Improving Occupant Survivability for a Vehicle Subjected to Loads from Explosions,” 2011 NDIA Ground Vehicle Systems Engineering and Technology Symposium, August 9 -11, 2011, Dearborn, MI.
  75. J. He, S. Hannapel, N. Vlahopoulos, “Multidisciplinary Design Optimization of Ship Hull Forms Using Metamodels,” ASME 2011 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference, IDETC/CIE 2011, August 29-31, 2011, Washington, DC, USA.
  76. N. Vlahopoulos, H.Y. Kim, R. Sbragio, K. Maki, “Multi-Discipline Design of a Wind Turbine,” ASME 2011 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference, IDETC/CIE 2011, August 29-31, 2011, Washington, DC, USA.
  77. N. Vlahopoulos, “Structural-Acoustic Simulations of Naval Vehicles using an Energy Finite Element Method,” ASME 2011 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference, IDETC/CIE 2011, August 29-31, 2011, Washington, DC, USA.
  78. N. Vlahopoulos, M. Castanier, E. Maes, N. Stowe, “Multidisciplinary Design Optimization of a Ground Vehicle Track for Durability and Survivability,” 2012 SAE Congress, Detroit MI, April 24-26, 2012.

Student Dissertations

  • Xi Zhao, (chair), NA&ME, “A Basic Development of a Hybrid Finite Element Method for Mid-frequency Computations of Structural Vibrations,” 2000; recipient of NA&ME outstanding graduate student award 2000; recipient of McIvor award in Applied Mechanics 2000.
  • Ricardo Sbragio, (chair). NA&ME, “A Three-Dimensional Formulation for Deriving the Acoustic Sensitivity using the Boundary Element Method,” 2001.
  • Mike Allen, (chair), NA&ME, “Stochastic Analysis of Structural/Acoustic Systems,” 2001.
  • Kexin Hu, (chair), NA&ME, “A Finite Element Formulation for Coupled Rigid and Flexible Dynamic Analysis of an Internal Combustion Engine Crankshaft System,” 2002.
  • Zhidong Zhang, (chair), NA&ME, “Formulations for Acoustic Inverse Analysis Based on the Indirect Boundary Element Method,” 2002; recipient of NA&ME outstanding graduate student award 2001 & 2002; recipient of McIvor award in Applied Mechanics 2002.
  • Omid Ebrad, (chair), ME, “Detailed Main Bearing Hydrodynamic Characteristics for Crankshaft-Block Interaction in Internal Combustion Engines,” 2002.
  • Jin Wang, (chair), NA&ME, “Probabilistic and Sensitivity Analyses for the Performance Characteristics of Engine Bearings due to Variability in Bearing Properties,” 2003.
  • Weiguo Zhang, (chair), NA&ME, “Energy Finite Element Method for Vibration Analysis of Stiffened Plates Under Fluid Loading,” 2003; recipient of NA&ME outstanding graduate student award 2003.
  • Sang-Bum Hong, (chair), NA&ME, “Hybrid Finite Element Developments For Vibroacoustic Analysis of Vehicle Systems in the Mid-Frequency Range,” 2004.
  • Jiulong Sun, (chair), NA&ME, “Probabilistic Model Updating and Variability Assessment in Blast Event Simulations,” 2005.
  • Javid Moraveji, (chair), ME, “Modeling of Trim Panels in the Energy Finite Element Analysis,” 2008.
  • Xiaoyan Yan, (chair), NA&ME, “Energy Finite Element Analysis Developments for High Frequency Vibration Analysis of Composite Structures,” recipient of 2008 NA&ME outstanding graduate student award.
  • Park, Keychun, (co-chair with Matthew Castanier), ME, “Component-Based Vibration Modeling Methods for Fast Re-Analysis and Design of Complex Structures,” 2008.
  • Sungmin Lee (chair), ME, “Energy Finite Element Method for High Frequency Vibration Analysis of Composite Rotorcraft Structures,” 2009.
  • Christopher Hart (chair), NA&ME, “Multidisciplinary Design Optimization of Complex Engineering Systems for cost Assessment Under Uncertainty,” 2010, recipient of 2010 NA&ME outstanding graduate student award.
  • Shari Hannapel, Ph.D. student, NA&ME (outstanding graduate student award 2012).
  • Nicholas Stow, Ph.D. student, NA&ME.
  • John Kim, PhD student, ME
  • Hong-Yoon Kim, PhD student, NA&ME
  • Odilon Rodrigues, Ph.D. student, NA&ME.
    Received the following awards: Scholar Power 2010 – related to academic year 2009
    Scholar Power 2011 – related to academic year 2010
    Scholar Power 2012 – related to academic year 2011
  • Sungmin Lee, post-doctoral scholar

Courses Taught at U of M

  • NA310, Marine Structures I
  • NA470, Foundations of Ship Design
  • NA 270, Marine Design
  • NA 340 Marine Dynamics I
  • NA321, Marine Hydrodynamics II
  • NA 644 Numerical Methods for Vibro-Acoustic Modeling of Complex Systems, graduate level course.
  • Auto 599 Automotive Noise Vibration and Harshness, graduate level course.