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Utilizing virtual vibration tests to optimize physical endurance tests

  • 투고 : 2017.02.10
  • 심사 : 2017.10.09
  • 발행 : 2018.03.25

초록

Physical tests are performed at various stages of the development cycle of a product, from prototype validation to product qualification. Although costly, there are growing demands for qualification tests like endurance vibration testing to be more representative of the real world. At the same time there are growing demands to assess the durability of these items based on FEA simulation. In this paper, we will explain how to set up a CAE-based test and how to correlate the results with some physical measurements. Specific assumptions will be explained and some advantages of using virtual tests will be highlighted such as the reduction of the number of prototypes needed, investigations on failures, evaluation of the level of reliability via sensitivity analysis, evaluation of the margins are at the end of a successful test. This presentation will therefore focus on explaining and showing how virtual tests can enrich the exploitation of physical tests.

키워드

참고문헌

  1. Dirlik, T. (1985), "Application of computers to fatigue analysis", Ph.D. Dissertation, Warwick University, U.K.
  2. Ewins, D.J. (1995), Modal Testing: Theory and Practice, Letchworth: Research Studies Press.
  3. Halfpenny, A. (2007), "Rainflow cycle counting and fatigue analysis from PSD", Proceedings of the ASTELAB Conference, September.
  4. Halfpenny, A. and Kihm, F. (2006), "Mission Profiling and Test Synthesis Based on Fatigue Damage Spectrum", Proceedings of the 9th International Fatigue Congress.
  5. Halfpenny, A., Anderson, R. and Lin, X. (2015), Isothermal and Thermo-Mechanical Fatigue of Automotive Components, SAE Technical Paper.
  6. Kihm, F., Ferguson, N.S. and Antoni, J. (2015), "Fatigue life from kurtosis controlled excitations", Proc. Eng., 133, 698-713. https://doi.org/10.1016/j.proeng.2015.12.652
  7. Kihm, F., Halfpenny, A. and Ferguson, N.S. (2015), "Fatigue life from sine-on-random excitations", Proc. Eng.
  8. Lalanne, C. (2002), Mechanical Vibration & Shock (Volume 4), Hermes Penton Ltd, London, U.K.
  9. Matsuishi, M. and Endo, T. (1968), Fatigue of Metals Subjected to Varying Stress, Japan Society of Mechanical Engineers, March.
  10. MIL-STD-810G (2008), Department of Defense, Test Method Standard Environmental Engineering Considerations and Laboratory Tests, U.S.A.
  11. Miner, M.A. (1945), "Cumulative damage in fatigue", J. Appl. Mech., 67, A159-A164.
  12. Palmgren, A. (1924), "Die lebensdauer von kugellagern", Zeitschrift des Vereines Deutscher Ingenierure, 68(14), 339-341.
  13. RCA/DO-160 Revision G (2010), Environmental Conditions and Test Procedures for Airborne Equipment, Washington, U.S.A.
  14. Rice, S.O. (1954), Mathematical Analysis of Random Noise, Selected Papers on Noise and Stochastic Processes.
  15. Steinwolf, A. (2006), Closed-Loop Shaker Simulation of Non-Gaussian Random Vibrations, Test Engineering and Management.
  16. Zhuge, J., Formenti, D. and Richardson, M. (2010), A Brief History of Modern Digital Shaker Controllers, Sound and Vibration.