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A Study on the Flight Vibration Environmental Specification of Unmanned Flying Vehicle using Random Vibration Test and Analysis Methods

랜덤 진동 시험 및 해석 기법을 이용한 무인 비행체의 비행 진동 환경 규격 연구

  • Jangseob, Choi (The 1st Research and Development Institute, Agency for Defense Development) ;
  • Dongho, Oh (School of Mechanical Engineering, Chungnam National University)
  • 최장섭 (국방과학연구소 미사일연구원) ;
  • 오동호 (충남대학교 기계공학부)
  • Received : 2022.07.29
  • Accepted : 2022.10.28
  • Published : 2022.12.05

Abstract

In this study, analysis of dynamic characteristics and flight vibration was performed to unmanned aerial vehicles. The analysis model was supplemented by performing a dynamic characteristic test and a random vibration test using manufactured dummy aerial vehicle. For the dynamic characteristic test, a bungee cable was used to implement the free end boundary condition. Prior to the flight vibration test using a multiple electric shaker, a random vibration test was performed to predict the excitation force during the actual flight vibration test. It was judged that the actual test could be predicted more accurately by supplementing the analysis model from the test results. In addition, it was possible to determine the feasibility of the test by predicting the excitation force of the flight vibration test.

Keywords

References

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