机械科学与技术2017，Vol.36Issue(1)：139-146,8.DOI:10.13433/j.cnki.1003-8728.2017.0120
力限条件设计复杂二自由度法及试验研究
Complex Two-degree-of-freedom Method and Testing Investigation for Force limited Specification
汪阳丰 1刘兵山 2王珂 1丁昳婷 1杨正玺1
作者信息
- 1. 中国科学院空间应用工程与技术中心,北京100094
- 2. 中国科学院大学,北京100190
- 折叠
摘要
Abstract
Among the vibration tests of spacecraft,the acceleration is usually the only specification in traditional test method which generally results in overtesting problem.The force limiting can solve this problem well by dual control of the acceleration and force.Force specification is the foundation of the force limited vibration test.The principle of complex two-degree-of-freedom method and its process to get the force specification are derived in detail.A test verification is designed,and the input acceleration decreased about 19.5 dB and 17.2 dB at the first resonance frequencies of the test item.The test result demonstrates that the specification of force limited test is closer to the reality than traditional acceleration test.关键词
航天/力限/振动试验/复杂二自由度法/过试验Key words
spacecraft/vibrations/acceleration/specification/force limiting/complex two-degree-of-freedom method/overtesting分类
航空航天引用本文复制引用
汪阳丰,刘兵山,王珂,丁昳婷,杨正玺..力限条件设计复杂二自由度法及试验研究[J].机械科学与技术,2017,36(1):139-146,8.
