高精度光电伺服转台结构设计与模态分析  

Construction Design and Modal Analysis of a High-accuracy Electro-optical Servo Turntable

作　　者：高国华[1] 汪进[1] GAO Guo-hua;WANG Jin(The 27th Research Institute of China Electronics Technology Group Corporation, Zhengzhou 450047, China)

机构地区：[1]中国电子科技集团公司第二十七研究所,郑州450047

出　　处：《电光系统》2019年第1期12-16,共5页Electronic and Electro-optical Systems

摘　　要：根据光电设备的性能指标要求,设计了一种高精度光电伺服转台。该设计采用小型化、模块化设计理念,选取典型的俯仰一方位型两轴转台结构形式。运用Creo软件建立转台三维模型,并对轴系精度进行分析;运用ANSYS分析软件对三维模型进行模态分析,得出转台前6阶模态的固有频率和振型。试验结果及实际使用效果表明,光电伺服转台的结构设计能满足设计指标要求,并为光电伺服转台的开发设计起到了借鉴作用。A high-accuracy electro-optical servo turntable is designed in this paper according to the performance requirements for electro-optical equipment. The design selects the typical pitching-azimuth and two - axle turntable construction based on the miniature and modular idea concept. Whats more, Creo software is used to develop a 3D model and the shafting accuracy is analyzed;ANSYS software is employed to carry out modal analysis of the 3D model, and the first 6 order natural frequency and vibration mode of servo tracking turntable are obtained. The test results and the actual effect show that the structure design of the electro-optical servo turntable could satisfy the design requirements and provide theoretical foundation for the design of electro-optical servo turntable.

关 键 词：伺服转台 结构设计 轴系精度 模态分析 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]