Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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A Study on Shock Test Design Method Using Linear Dynamic Model of Light Weight Vertical Shock Test Machine

경중량 수직형 충격 시험 장비의 선형 동역학 모델 수립을 통한 충격 시험 설계 기법에 관한 연구

  • Kim, Junhyeok (The 1st Research and Development Institute, Agency for Defense Development) ;
  • Oh, Boo-Jin (The 1st Research and Development Institute, Agency for Defense Development) ;
  • Im, Damhyeok (The 1st Research and Development Institute, Agency for Defense Development)
  • 김준혁 (국방과학연구소 제1기술연구본부) ;
  • 오부진 (국방과학연구소 제1기술연구본부) ;
  • 임담혁 (국방과학연구소 제1기술연구본부)
  • Received : 2020.08.04
  • Accepted : 2021.01.22
  • Published : 2021.02.05
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Abstract

Naval surface ships and submarines could be exposed to non-contact underwater explosion(UNDEX) environment. Equipment installed on the ships and submarines could be damaged by shock load generated by UNDEX environment. Therefore, shock survivability of equipment generally evaluated by shock tests. Ground based shock test machine such as Light weight shock test machine(LVSM) is developed to simulate shock load caused by UNDEX environment. In this study, linear dynamic model of LVSM is proposed and evaluated to improve shock test design procedure. Parameters of the model are decided by optimizing time domain response compared to zero payload experiment. Proposed model is verified by comparing simulation results and test results of maximum payload experiment. Finally, shock test design using the model is described for various test equipment weight.

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References

  1. Military Specification, BV043, "Shock Resistance Experimental and Mathematical Proof," 1985.
  2. J. Lee, J. Bae, J. Choi, J. Kim, G. Kong, "Applying CAE to Evaluate Shock Resistance of Equipment Design for Naval Vessel," Journal of the KNST, Vol. 1, No. 1, pp. 31-36, 2018. https://doi.org/10.31818/jknst.2018.07.1.1.31
  3. J. Seong, J. Choi, J. Kim, S. Baek, "A Study on Shock Resistance Evaluation of Equipment for a Naval Ship by Using BV-043," The Korean Society of Mechanical Engineers, pp. 1361-1366, November, 2015.
  4. J. H. Park, W. H. Kim, H. S. Kim, Y. C. Choi, "A Study on the Shock Analysis of the Multi-Function Console According to the Shock Response Spectrum Requirements of the Elastic Platform," J. Korean Soc. Precis. Eng., Vol. 33, No. 10, pp. 805-811, 2016. https://doi.org/10.7736/KSPE.2016.33.10.805
  5. Military Specification, MIL-S-901D, "Shock Tests, H.I. (High-Impact) Shipboard Machinery, Equipment, and Systems, Requirements for," 1989.
  6. Zhaodong, W., Yu, W., Lei, Z., Jianye, D., "Modeling and Dynamic Simulation of Novel Dual-wave Shock Test Machine," In Proceedings of 2011 International Conference on Fluid Power and Mechatronics IEEE, pp. 898-901, 2011.
  7. Zhang, Z. Y., Wang, G. X., Wang, Y., "Numerical Modeling of Dual-Pulse Shock Test Machine for Simulating Underwater Explosion Shock Loads on Warship Equipment," Journal of Shanghai Jiaotong University(Science), 14(2), pp. 233-240, 2009. https://doi.org/10.1007/s12204-009-0233-x
  8. T. H. Kim, J. S. Bae, C. W. Shul, "Investigation on the Parameter Determination and Implementation of a Dual-Pulse Shock Test Machine Using a MR Damper," Journal of Mechanical Science and Technology, 30(12), pp. 5381-5387, 2016. https://doi.org/10.1007/s12206-016-1105-6
  9. J. Bae, "The Shock-Test Result and Analysis Using Dual-Pulse Shock Testing Machine," Journal of the Korea Institute of Military Science and Technology, Vol. 21.3, pp. 342-348, 2018. https://doi.org/10.9766/KIMST.2018.21.3.342
  10. Eberhard, F., K. Wolfgang., "Handbook for Disc Springs," Adolf Schnorr GmbH+ Co., 2003.
  11. Brake, M. R., "An Inverse Shock Response Spectrum," Mechanical Systems and Signal Processing, 25(7), pp. 2654-2672, 2011. https://doi.org/10.1016/j.ymssp.2011.05.003
  12. Chu, A., "Zeroshift of Piezoelectric Acceleroemeters in Pyroshock Measurements," Shock Vib Bull, 57, pp. 71-80, 1987.
  13. Wen, J., Liu, C., Yao, H., Wu, B., "A Nonlinear Dynamic Model and Parameters Identification Method for Predicting the Shock Pulse of Rubber Waveform Generator," International Journal of Impact Engineering, 120, pp. 1-15, 2018. https://doi.org/10.1016/j.ijimpeng.2018.05.009