摘要
利用噪声测试系统,对某型号固体火箭发动机地面试验所产生的噪声进行了测量,对所测得的噪声信号进行了频谱分析,提出了一种适用于固体火箭发动机试验的噪声测试方法,并介绍了该噪声测试系统的原理和各组成部分的功能。研究了固体火箭发动机地面试验噪声产生的机理及时域、频域特性,对固体火箭发动机的设计改进和地面试验的降噪措施有一定参考价值。
The noise was measured on the ground test of solid rocket motor by using the noise testing system. The measured signals were analyzed in terms of amplitude spectrum. A noise testing method of solid rocket motor was proposed. Principle and function of the each part of the noise testing system were introduced, then the noise mechanism and characteristics of time-domain and frequency-domain were researched. The valuable conclusion was obtained to improve the ability of solid rocket motor design and help to reduce the noise.
出处
《固体火箭技术》
EI
CAS
CSCD
北大核心
2009年第2期230-233,共4页
Journal of Solid Rocket Technology
