摘要
建立惯导系统中惯性组件结构三维模型,利用有限元分析软件对惯性组件结构进行有限元模态计算和分析。根据模态分析结果,对惯性台体结构进行拓扑优化,达到惯性台体减重的目的,优化后的惯性台体结构满足文中提出的设计要求。此结构优化设计方法简单,易于实现,对优化惯导系统结构设计,实现小型化、轻量化目标具有一定的指导意义。
The 3D model of the inertial platform component ment modal calculation and analysis of the inertial platform is designed by the 3D modeling software, and the finite ele- component are conducted with the help of the finite element software. The topology optimization of the inertial platform structure is carried out based on the modal analysis results to reduce weight of the inertial platform, and the inertial platform structure after optimized meets the need of design brought forward in the article. The method of the structure optimal design is simple and can be implemented easily, which will have certain guiding significance to the optimization of the inertial navigation system structure design and the realization of the target of miniaturization and lightweighting.
出处
《导航定位与授时》
2014年第3期74-78,共5页
Navigation Positioning and Timing
关键词
惯性台体
有限元模态分析
拓扑优化
结构优化设计
Inertial platform
The finite element modal analysis
Topology optimization
Structure optimal design
