摘要
本文针对传统捷联惯组内减振器通常存在橡胶易脱落、预紧过程中减振器扭转等潜在风险,对减振器结构形式进行了优化设计,并对减振器的参数计算、阻尼设计、布局方法进行了详细分析,最后针对不同优化设计方案进行了振动试验验证。结果显示结构优化后的惯组系统最大功率谱密度值下降了约87%,且其均方根误差(RMS)响应值下降了约20%,优化效果明显,满足捷联惯组环境适应性设计要求。
There are many potential risks caused by structure problem of internal damper of traditional strapdown IMU,such as rubber easy to fall off and torsion of shock absorber during pretightening. In the present study, aiming at above problems, the structure of shock absorber was optimized according to the analysis of structure parameter, damping design and layout methods. The verification of vibration tests were carried out for different optimization design schemes. The results showed that the maximum power spectral density decreased by about 87%, and the root mean square error(RMS) response decreased by about 20% in IMU system. This optimization showed obvious effect and met the requirements of environmental adaptability of IMU.
作者
王婉颖
祁鹏
杨朋军
师祥利
陈西娟
WANG Wan-ying;QI Peng;YANG Peng-jun(Xi'an Aerospace Precision Electronechanical Institute,Xi'an 710100;A Rocket Force Representative's office,Xian 710100)
出处
《航空精密制造技术》
2022年第3期23-26,共4页
Aviation Precision Manufacturing Technology
关键词
减振器
优化设计
试验
damper
optimization design
experimental study
