噪声与振动控制2016，Vol.36Issue(4)：80-83,4.DOI:10.3969/j.issn.1006-1335.2016.04.017
航天器设备舱噪声分析及声学优化设计
Noise Prediction and Acoustic Design Optimization of Spacecraft’s Equipment Cabins
游进 1郝平 1谷巍1
作者信息
- 1. 中国空间技术研究院 载人航天总体部，北京 100094
- 折叠
摘要
Abstract
For a manned spacecraft, a comfortable acoustic environment with finite weight cost is the main objective of acoustic design. In this paper, a statistical energy analysis (SEA) model for spacecraft’s equipment cabins with disturbance hardware is built. The sound pressure level (SPL) in the astronaut passage is predicted based on measured radiation characteristics of the disturbance sources, and noise reduction countermeasures are proposed. The thicknesses of honeycomb plates and the sound absorption layers are selected as design variables, and genetic algorithm (GA) optimization is employed to find the optimal acoustic design. The results indicate that, the maximum SPL in the astronaut passage is reduced by 3dB, meeting the acoustic requirement of passages, and the total weight of each bay is reduced by 9%. Thus, the application of GA in acoustic design optimization is validated.关键词
声学/载人航天器/统计能量分析/遗传算法/声学优化Key words
acoustics/manned spacecraft/statistical energy analysis (SEA)/genetic algorithm (GA)/acoustic optimization分类
通用工业技术引用本文复制引用
游进,郝平,谷巍..航天器设备舱噪声分析及声学优化设计[J].噪声与振动控制,2016,36(4):80-83,4.
