机械式反操作负载模拟器优化设计与仿真  

Design optimization and simulation of mechanical anti-load simulator

作　　者：王巍[1] 李雄峰[1] 张新华 于文鹏[1] 

机构地区：[1]北京航空航天大学机械工程及自动化学院,北京100191 [2]北京自动化控制设备研究所,北京100074

出　　处：《北京航空航天大学学报》2011年第2期161-166,共6页Journal of Beijing University of Aeronautics and Astronautics

基　　金：国家自然科学基金资助项目(50605501)

摘　　要：对设计的负载模拟器采用复数矢量法与虚位移原理建立其机构动力学与多余力矩数学模型.在此基础上针对传统遗传算法优化解不一致的情况,提出了基于参数灵敏度分层的遗传算法优化方法并对设计中各参数进行了优化.根据优化结果设计虚拟样机,并利用ADAMS进行多种加载信号的仿真,结果表明样机各项指标均达到设计要求,依此设计出一套可同时进行环境试验与多种负载加载的反操作负载模拟器.The dynamics and extraneous torques models of an anti-load simulator were built according to the complex vector and virtual displacement principles respectively.To avoid the problem that the solution is not consistent when the traditional genetic algorithm（GA） is used in the parameters optimization,the hierarchical optimization of GA based on the parametric sensitivity was applied to optimize the design parameters of the mechanism of the anti-load simulator.Then a virtual prototype was designed according to the optimizing results,and testified by the simulation in ADAMS with various loads applied.The results show that the prototype is able to withstand the complex environment conditions and loads in simulating tests.Finally,the real anti-load simulator was established with functions working in environment tests and under various loads.

关 键 词：反操作负载模拟器 灵敏度 遗传算法 仿真 

分 类 号：TH122[机械工程—机械设计及理论] V224[航空宇航科学与技术—飞行器设计]