Chinese Space Science and Technology ›› 2020, Vol. 40 ›› Issue (2): 62-.doi: 10.16708/j.cnki.1000-758X.2020.0021

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Simulation analysis of the influence of quality characteristics on spacecraft pyroshock transmission

YANG Guang,LIU Bo,LI Zhengju,DENG Mingle   

  1. Institute of Telecommunication Satellite, China Academy of Space Technology, Beijing100094, China
  • Online:2020-04-25 Published:2020-04-26

Abstract: Pryoshock environment on the spacecraft is complex, the impact load is transient and highly nonlinear, which makes the pyroshock response difficult to be predicted. Quality characteristics of equipment distributing on satellite boards become the key factor of pyroshock transmission. According to the mechanism of pyroshock transmission, the simplified finite element method (FEM) models of satellite boards and equipment were built and the responses on the satellite boards were calculated. Comparing the results with test data, the error was controlled under ±35dB which confirmed the rationality of the FEM modeling. The method of simulation provides a reference for the prediction of pyroshock response and the design of satellite layout.

Key words: pyroshock, spacecraft, response transmission, quality characteristics, FEM method