CHEN Guo hu1, YU Zhu qing2, LV Xue neng1

 

(1. Hangzhou Navigation Instrument Corporation, Hangzhou 310024, China;

 

2.College of Mechanical Engineering, Changzhou University, Changzhou 213164, China)

 

 

Abstract: Radar antenna stabilized platform is used for segregating the angular motion of carriers in order to improve the detection accuracy. Aiming at the higher load of unmanned aerial vehicle(UAV) caused form the heavy traditional stabilized platform, as well as the sensitivity was affected by the bigger rotary inertia when applied to UAV, the loading situations of the three axis stabilized platform′s four major components in different flight conditions of UAV were researched. According to the mechanics principle and the Matlab software, the mathematical model was established and the work conditions of components under maximum load were solved, thus the limit load for components was elaborated, which was treated as the boundary conditions of finite element optimization design. Under stiffness and intensity satisfied, the radar stabilized platform was optimized, aiming for minimum weight. The results indicate that the weight of stabilized platform has been reduced remarkably, and the sensitivity has been improved through the optimized design for the three axis stabilized platform. The platform through optimized design has been used in a sort of UAV.

 

Key words: stable platform; unmanned aerial vehicle optimized design; Creo