飞机大部件调姿机构柔性多体动力学建模与仿真  

Modeling and simulation of flexible multi-body dynamics for large aircraft components alignment mechanism

作　　者：应征[1] 黄浦缙[1] 王青[1] 柯映林[1] 

机构地区：[1]浙江大学流体传动及控制国家重点实验室,浙江杭州310027

出　　处：《计算机集成制造系统》2012年第11期2470-2475,共6页Computer Integrated Manufacturing Systems

基　　金：国家自然科学基金资助项目(50905161);浙江省科技计划资助项目(2010C31097);高等学校博士点基金资助项目(20090101120021)~~

摘　　要：为保证飞机大部件调姿的质量与可靠性,构建了调姿机构的动力学模型,模拟了整个调姿过程。根据调姿机构自身特点将三坐标定位器的支撑杆视为柔性体,综合运用拉格朗日方程、虚功原理与拉格朗日乘子法,建立了调姿机构的柔性多体动力学模型;经数值求解得到调姿过程中飞机部件和定位器的受力情况,通过仿真算例验证了所建立的动力学模型的正确性和有效性。该动力学模型可为实现调姿过程的自动控制提供有力的依据。To guarantee the quality and reliability of large aircraft components alignment, the dynamic model of align- ment mechanism was constructed and the whole alignment process was simulated. According to characteristics of pose alignment mechanism, support bars of 3D actuators were considered to be flexible bodies, and the dynamic model of pose alignment system was established by utilizing Lagrange equation, virtual work theory and Lagrange multipliers method. Through numerical solution, the joint reaction forces of aircraft component and supporting poles were acquired. Simulation example was presented to demonstrate the correctness and effectiveness of proposed dynamic model. In addition, this dynamic model also provided powerful basis for the automatic control of posture alignment process.

关 键 词：飞机装配 数字化制造 位姿调整 冗余并联机构 柔性多体动力学 

分 类 号：TH122[机械工程—机械设计及理论]