Journal of KSNVE (소음진동)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Structural Dynamic Modification of Fixture by Antiresonance Frequency Analysis in Environmental Vibration Test Control

환경진동시험 제어에서 반공진 진동수해석에 의한 치구의 구조변경설계

  • 김준엽 (국방과학연구소, 환경시험실) ;
  • 정의봉 (부산대학교 정밀기계공학과 및 기계기술 연구소)
  • Published : 1995.12.01
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Abstract

This paper proposes the method of antiresonance frequency analysis of multi-input multi-output system. The structural dynamic modification techniques by antiresonance frequency analysis are also applied to reduce the undertest at specimen attachment points on the fixture in environmental vibration test, which is resulted from the inconsistency of antiresonance frequencies at any specified points. Several computer simulations show that the proposed method can remove the undertest problem which is not removed in conventional vibration test control. And the effectiveness of the method is verified with the impact hammer excitation of aluminium fixture model.

Keywords

References

  1. Tustin Institute of Technology Vibration and Shock Test Fixture Design Klee,B.J.;Kimball,D.V.;Tustin,W.
  2. MIL-STD-810B, Method 514.1, Paragraph 4.2, MISC
  3. Shock and Vibration Handbook(2nd Ed.) Harris,C.M.;Crede,C.E.
  4. Vibration Measurement Gheorghe Buzdugan;Elena Mihalescu;Mircea Rades
  5. NASA CR-1351 Development of Impedance Simulation Fixture for Spacecraft Vibration Tests Scharton,T.D.
  6. Shock and Vibration Bulletin v.36 Averageing Fundamental Vibration Control Signals : A Theoretical Study Shurtleff,W.W.
  7. Shock and Vibration Bulletin v.37 Control Point Averaging for Large Specimen Vibration Berkman,H.R.
  8. Shock and Vibration Digest v.18 no.0 Random Testing with Digital Control Application in the Distribution Qualification of Micro Compusters deSilva,C.W.;Henning,S.J.;Brown,J.D.
  9. 대한기계학회논문집 v.19 no.1 랜덤진동제어에서 치구성능향상을 위한 기준스펙트럼의 최적화에 대한 연구 김준엽;정의봉
  10. ADA Report # 195147 Experimental Modal Analysis-System Modeling Techniques Randall,J.Allemang;David,L.Brown;Robert,W.Rost
  11. Proceedings of 3rd IMAC On Antiresonance, with Application to Control of Structurals Shepard,G.D.
  12. Jr. of Vibration and Acoustics v.115 Optimal Design of Optical Pick-up by Elimination of Resonance Reaks Kajiwara,I.;Nagamatsu,A.
  13. Proceeding of 5th IMAC An Anti-resonance Technique for detecting Structural Damage D.Afolabi
  14. 배풍관 モ-ド 해석 장송소남
  15. 日本機械學會論文集(C篇) v.54 no.505 共振点と反共振点の感度お 用いた構造物の最適化方法 梶原逸郞(외 3)