航天器环境工程2017，Vol.34Issue(5)：471-477,7.DOI:10.3969/j.issn.1673-1379.2017.05.003
空间站舱内噪声仿真、验证与声源布局优化
Simulation and validation of interior noise and optimization of sound source layout for space station module
摘要
Abstract
The interior noise of a space station module is simulated, with acoustic parameter settings. Two typical vibro-acoustic analysis methods, namely the coupled FE/FEM and SEA, are adopted to simulate and analyze the space station module under inner acoustic source excitation. The interior noise validation test of the space station is designed. A sound source simulation technology based on the acoustic power equivalence is proposed. The compared results show that the acoustic levels in both low and high frequency regions can be predicted by using both methods, and the overall level of deviation is less than 2dB. The layout of the sound source is optimized through analyses, and it is shown that the centralized layout is more conducive for the noise reduction.关键词
空间站/舱内噪声/仿真/FE/FEM耦合/SEA方法/试验验证/声源布局Key words
space station/interior noise/simulation/coupled FE/FEM/SEA method/test validation/sound source configuration分类
航空航天引用本文复制引用
冯国松,杨江,武耀,王栋,孙通,冯咬齐..空间站舱内噪声仿真、验证与声源布局优化[J].航天器环境工程,2017,34(5):471-477,7.基金项目
国家重大科技专项工程 （）
