摘要
红外望远系统是红外目标模拟器的关键部件,环境振动会造成成像质量下降甚至结构破坏。本文利用有限元分析软件ANSYS对红外望远系统结构进行了动力学特性分析,求解了三向加速度载荷下镜头的应力和变形,并利用功率谱密度(PSD)分析方法解算出在随机动态载荷激励下系统动态响应的1σ统计结果,仿真结果表明,该设计能够满足工程要求。
Infrared Telescope is a key part of infrared target simulator,Environmental vibration will lead to descending of image quality or even structural damage.Dynamic character of Infrared telescope was analyzed based on ANSYS,stress and strain of telescope structure under the load of 3-direction acceleration were obtained,moreover,the 1σ response values and random response spectra stimulated by random vibration were acquired with PSD analysis,the results show that the design meets the technical requirement completely.
出处
《新技术新工艺》
2011年第5期55-57,共3页
New Technology & New Process
