南京航空航天大学学报2013，Vol.45Issue(1)：104-109,6.
超小型无人机光电稳定平台照准架的结构优化设计
Optimal Design of Aiming Frame Structure of Photoelectric Stabilized Platform for Small UAVs
摘要
Abstract
The aiming frame of photoelectric stabilized platform for small unmanned aerial vehicles (UAVs) is the key component that ensures accuracy index of platform. In order to reduce the mass and the size of the component, the aiming frame structure and the case of their force are studied with NX/Nastran. Then, the optimization design of the aiming frame structure is achieved according to the analysis results. The results show that the mass of the aiming frame is reduced by 88 g, which is 30% of the primary weight, and that is beneficial to lightweight design of the platform. The modal analysis and thermal analysis are carried out on the optimized aiming frame. It indicates that the aiming frame's first-order natural frequency is 415 Hz by modal analysis and the thermal deformation of the aiming frame is 0.083 mm in the temperature difference of 120 ℃ by thermal analysis. The analysis results meet overall performance indexes of aircraft. Finally, through the stabilized accuracy and angle measurement accuracy test, vibration test, high and low temperature tests and flight test, the correctness of the simulation analysis are proved, which indicates that the optimized design of the aiming frame is successful.关键词
超小型无人机/照准架/结构优化/稳定平台Key words
small unmanned aerial vehicles (UAVs)/ aiming frame/ structure optimization/ stabilized platform分类
机械制造引用本文复制引用
刘仲宇,张涛,李嘉全,李明,王帅..超小型无人机光电稳定平台照准架的结构优化设计[J].南京航空航天大学学报,2013,45(1):104-109,6.基金项目
国家高技术研究发展计划("八六三"计划)(2008AA121803)资助项目 （"八六三"计划）
国家重点基础研究发展计划("九七三"计划)(2009CB72400607)资助项目. （"九七三"计划）
