Open AccessVibration responses of a satellite subjected to acoustic excitation at launch stage
Author(s) -
Jie Zhang,
Wei-Hua Xie,
Jiacong Yin,
Huiliang Liu,
Jian Guo Zhou
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1786/1/012034
Subject(s) - acoustics , vibration , satellite , rocket (weapon) , sound pressure , launch vehicle , excitation , frequency band , stage (stratigraphy) , energy (signal processing) , computer science , aerospace engineering , physics , engineering , geology , telecommunications , electrical engineering , paleontology , bandwidth (computing) , quantum mechanics
Acoustic-vibration prediction at early stage of satellite development can contribute to their structural and layout design. In this paper, numerical models of a practical satellite subjected to acoustic excitation at launch stage were established. Then, the effect of acoustic condition was further analyzed. The results demonstrate that it is difficult to predict all-frequency-band acoustic response of complex satellites by an individual method, so a combined method was proposed in this paper. The damping loss factor model of panels with equipment was introduced to resolve the issue of on-board equipment modelling in the statistical energy analysis model. The service modules are extremely sensitive to acoustic excitation of about 354∼2828Hz, which should be highlighted when carrying a rocket with a high sound pressure level at this frequency band.