控制力矩陀螺转子-框架耦合系统动力学分析  

Control torque gyro rotor-frame coupling system dynamics analysis

作　　者：葛帅帅 曾四海 张志刚 石晓辉 黄剑鸣 GE Shuaishuai;ZENG Sihai;ZHANG Zhigang;SHI Xiaohui;HUANG Jianming(School of Vehicle Engineering,Chongqing University of Technology,Chongqing 400054,China)

机构地区：[1]重庆理工大学车辆工程学院,重庆400054

出　　处：《重庆理工大学学报（自然科学）》2022年第10期133-139,共7页Journal of Chongqing University of Technology：Natural Science

基　　金：国家重点研发计划项目(2018YFB0106100);国家自然科学基金项目(52005067);国防科技创新特区项目(20-****-03-**-***-01);重庆市自然科学基金项目(cstc2019jcyj-msxmX0733);重庆市教委科学技术研究项目(KJQN201901115);重庆理工大学研究生创新项目(clgycx 20202014)。

摘　　要：针对传统分析方法将转子系统、框架系统分离而存在的不足,提出控制力矩陀螺转子-框架耦合系统动力学分析方法,利用ABAQUS建立转子、框架及耦合系统有限元模型,对转子、框架、耦合系统进行模态分析和谐响应分析,揭示转子、框架、耦合系统模态特性和谐响应规律。结果表明:与单独分析转子、框架相比,转子-框架耦合系统动力学特性的分析结果有较大差异,通过转子-框架耦合系统分析可有效筛选系统共振点;转子、框架、转子-框架耦合系统谐响应“峰值”频率与模态频率并不完全对应,且各阶“峰值”大小不同,这与振动参与系数有关,合理设计振动参与系数可有效提升系统优化设计准确性。所得结果可为控制力矩陀螺优化设计提供理论参考。Control moment gyroscope has been widely used in aerospace,two-wheeled vehicles and other fields because of its excellent attitude control ability.Its dynamic characteristics are of great significance to the optimal design of control moment gyroscope.Aiming at the shortcomings of traditional analysis methods in considering the separation of rotor system and frame system,,the control moment gyro rotor-coupling dynamic system analysis method are proposed in this article,the finite element model of the rotor,framework and coupling system is established based on ABAQUS,and modal analysis and harmonious response analysis of rotor,frame and coupling system are carried out,which reveals the rotor,framework,coupling system modal characteristics harmonious response law.The results show that the dynamic characteristics of the rotor-frame coupling system are significantly different from those of the rotor and the frame,and the analysis of the rotor-frame coupling system can effectively screen the vibration points of the system.The harmonic response “peak” frequency of rotor,frame and rotor-frame coupling system is not exactly corresponding to the modal frequency,and the magnitude of the “peak” of each order is different,which is related to the vibration participation coefficient.Considering the vibration participation coefficient,the accuracy of system optimization design can be effectively improved.The results can provide theoretical reference for the optimal design of control moment gyro.

关 键 词：控制力矩陀螺 转子-框架耦合系统 动力学分析 结构优化 

分 类 号：U463.3[机械工程—车辆工程] U489[交通运输工程—载运工具运用工程]