Journal of KSNVE (소음진동)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Dynamic Analysis of Aircraft Landing Gear under Nonstationary Random Excitations

비정상 랜덤 가진력을 받는 항공기 착륙장치의 동특성 해석

  • 황재혁 (한국항공대학교 항공기계공학과) ;
  • 유병성 (한국항공대학교 항공공학과 대학원) ;
  • 박명호 (대천전문대학 기계자동차학부)
  • Published : 1998.04.01
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Abstract

The motion of an aircraft landing gear over rough runway at variable speed is nonstationary. In this paper, a method for the computation of nonstationary response variance is presented which uses a state space form for the combination of landing gear and runway excitation. The dynamic characteristics of the landing gear under nonstationary random excitations has also been analyzed using the proposed method. The formulation is for linear systems of arbitrary order and allows any deterministic velocity history. It has been found by a series of simulation that correlation parameter, damping coefficients of landing gear and tire, and velocity profiles play a prominent role on the dynamic characteristics.

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References

  1. Journal of Sound and Vibration v.61 no.1 Ground Induced Non-Stationary Response of Vehicles Yadav, D.;Nigam, N. C.
  2. Radom Vibration of Mechanical and Structural Systems Soong, T. T.;Mircea Grigoriu
  3. Journal of Sound and Vibration v.52 no.1 Response to Profile Imposed Excitation With Randomly Varying Traversal Velocity Sobczyk, K.;Macvean, D. B.;Robson, J. D.
  4. Journal of Sound and Vibration v.61 no.1 Response of an Aceelerating Vehicle to Random Road Undulation Virchis, V. J.;Robson, J. D.
  5. Non-Stationary Random Inputs and Responses, Random Vibration v.2 Caughey, T. K.;Crandall, S. H.(ed.)
  6. Transactions of the ASME v.103 Nonstationary Response of Vehicles on Rough Ground-A State Space Approach Hammond, J. K.;Harrison, R. F.
  7. An Introduction to Random Vibrations and Spectral Analysis Newland, D. E.
  8. Random Vibration in Mechanical Systems Crandall, S. H.;Mark, W. D.
  9. Linear System Theory - The State Space Approach Zadeh, L. A.;Desoer, C. A.
  10. 선형 제어시스템 공학 김종식