微型动力调谐陀螺挠性接头的优化设计  

Optimization Design of Flexible Joint of Miniature Dynamically-tuned Gyroscope

作　　者：吴晨 郭宝林 张培新 李伟 武展 Wu Chen;Guo Baolin;Zhang Peixin;Li Wei;Wu Zhan(Xi’an Aerospace Precision Mechatronics Institute,Xi’an 710000)

机构地区：[1]西安航天精密机电研究所,西安710000

出　　处：《航天制造技术》2023年第3期17-22,共6页Aerospace Manufacturing Technology

基　　金：装备预先研究项目(51309010603)。

摘　　要：挠性接头是动力调谐陀螺中的核心部件,其性能直接决定陀螺性能。作为微型动力调谐陀螺用挠性接头,既要体积小,又要具备一定角刚度。为了提升挠性接头性能,减小某型号微型动力调谐陀螺随机振动漂移量,本文首先建立了挠性接头优化问题的数学模型,然后介绍了BP-GA优化算法,并将其应用在挠性接头优化设计中,同时实测了优化后挠性接头性能,最终经过陀螺随机振动试验验证表明,优化后挠性接头对应陀螺的随机振动漂移量从1.5°/h下降到0.09°/h,效果显著。The flexible joint is the core component of the dynamically-tuned gyroscope,and its performance dircetly determines the performance of the gyroscope.As a flexible joint for a miniature dynamically-tuned gyroscope,it must be small in size and have a certain angular stiffness.In order to improve the performance of flexible joint and ruduce the random vibration drift of a miniature dynamically-tuned gyroscope.This paper establishes a mathematical model for the optimization problem of flexible joint firstly,and then introduces the BP-GA optimization algorithm,which is applied in the optimization design of flexible joint and then the performance of the optimised flexible joint has been measured.The final random vibration test of the gyro shows that the random vibration drift of gyro which the flexible joint has been optimizatized decreases from 1.5°/h to 0.09°/h,the effect is remarkable.

关 键 词：微型动力调谐陀螺 挠性接头 BP-GA算法 优化设计 角刚度 随机振动漂移 

分 类 号：O318[理学—一般力学与力学基础]