控制力矩陀螺的框架结构工程分析

Structural Engineering Analysis of a Control Moment Gyroscope Framework

以控制力矩陀螺的框架结构为研究对象,利用ANSYS有限元软件分析其结构刚度和振动模态等力学特性,得到其在大载荷作用下的应力、应变分布情况和多阶模态,并依据分析结果对框架结构进行了优化设计,以满足整个控制力矩陀螺系统的结构刚度和控制精度要求。有限元分析的结果表明通过优化设计可以使框架的结构刚度显著提高,同时使其动态特性也得到了有效改善,从而验证了在结构设计中进行工程分析的必要性和合理性,为相关的框架系统设计提供理论依据。

The framework structure of a control moment gyroscope(CMG)system was regarded as a research object,and mechanical characteristics such as stiffness and vibration mode was analyzed by ANSYS finite element method software,so that its stress and strain distributions as well as multistage mode under a large load were obtained.According to the analysis results,its structural optimization design was implemented to meet the requirements of structural stiffness and control precision in the whole system.The results of finite element analysis show that its structure strength can be enhanced obviously by optimization design and synchronously dynamic characteristics are also effectively improved,so it verifies that engineering analysis is necessary and reasonably in structural design.Therefore,it can provide a theoretical basis for related system design.