摘要
文章在介绍了模态试验基本方法和基本原理的基础上,着重探讨了锤击法测量航天器局部载荷结构的模态试验方法。通过对该载荷不同方向的激励,得到了其各个方向的模态频率、模态阻尼和模态振型,为航天器有效载荷设计及修改提供参考意见。
On the basic method and principle of modal test, this paper emphatically discusses the modaltest method with hammer excitation method for measuring local payload structure of spacecraft. Throughthe excitation of the payload in different directions, the modal frequencies, modal damping and modalshapes in all directions are obtained, which provide some reference for the design and modification of spacecraft payload.
出处
《环境技术》
2017年第4期22-26,共5页
Environmental Technology
关键词
航天器
载荷
锤击法
模态试验
spacecraft
payload
hammer excitation method
modal test
