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整星隔振器性能及阻尼可靠性实验分析
引用本文:陈阳,方勃,张业伟,黄文虎.整星隔振器性能及阻尼可靠性实验分析[J].哈尔滨工业大学学报,2010,42(1):13-15,19.
作者姓名:陈阳  方勃  张业伟  黄文虎
作者单位:哈尔滨工业大学航天学院
基金项目:国防科技工业民用专项科研技术研究项目(C4120062301)
摘    要:为保证卫星成功发射,应用整星隔振方法改善卫星在升空过程中其所处恶劣的动力学环境,降低卫星由于运载火箭激励而引起振动的幅值.通过隔振器传递率特性实验,可以证明添加隔振器后卫星顶端的响应幅值比未隔振前大幅降低.添加隔振器后的随机实验表明,在随机激励下,隔振器的隔振效果可以满足发射要求.此外,通过对隔振器阻尼可靠性问题的讨论,证明在隔振器少量阻尼元件失效条件下,隔振器性能变化不大,可以满足卫星发射对隔振器的冗余性能要求.

关 键 词:整星隔振  阻尼比  固有频率  实验  可靠性
修稿时间:4/7/2009 2:38:49 PM

Experimental analysis on performance and damping reliability of whole-spacecraft vibration isolators
CHEN Yang,FANG Bo,ZHANG Ye-wei and HUANG Wen-hu.Experimental analysis on performance and damping reliability of whole-spacecraft vibration isolators[J].Journal of Harbin Institute of Technology,2010,42(1):13-15,19.
Authors:CHEN Yang  FANG Bo  ZHANG Ye-wei and HUANG Wen-hu
Affiliation:School of Astronautics,Harbin Institute of Technology,Harbin,150001,China;School of Astronautics,Harbin Institute of Technology,Harbin,150001,China;School of Astronautics,Harbin Institute of Technology,Harbin,150001,China;School of Astronautics,Harbin Institute of Technology,Harbin,150001,China
Abstract:For the successful launching of spacecraft, whole-spacecraft vibration isolation is applied to improve the severe dynamic environment during launch, and lower the amplitude of vibration input from the launch vehicle. By the transmissibility results of vibration isolator, the response of spacecraft with vibration isolator is much lower than which without vibration isolator. The result of random experiment shows that the requirement of launch can be satisfied. Besides, by the discussion of damping reliability, the performance of isolator is not much worse with the failure of some dampers. The redundant property can satisfy the launch requirement.
Keywords:whole-spacecraft vibration isolation  damping ratio  natural frequency  experiment  reliability
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