基于解析法的旋转式电动货舱门建模与仿真

Modeling and Simulation of Rotary Electric Cargo Door Based on Analytical Method

在舱门闭环控制系统的设计中,常用的机械结构分析软件不便于实现控制算法的优化验证。为验证舱门系统的设计方案及控制算法的优劣,运用基于动态静力学的解析法对旋转式货舱门机构进行了运动受力分析,依据推导的力学方程在MATLAB/SIMULINK中建立了仿真模型,可通过输入舱门的实时位置得到负载转矩的变化曲线,同时可以得到对应的减速机输出端的转速变化曲线和功率变化曲线,曲线变化趋势与实际情况相符,上述模型的建立可为货舱门电机作动控制系统的设计提供基础,也能够显示舱门参数改变后的载荷变化,从而利于舱门负载转矩的优化。

For the design of the rotary cargo door closed-loop controlling system,the commonly used mechanical structure analysis software is not convenient to verify the optimized control algorithm.To settle this problem,the rotary cargo door mechanism was analyzed based on dynamic statics,and a simulation model was established in MATLAB/SIMULINK,and the load torque was obtained by setting the motion trajectory of the cargo door,which contributes to the design of the cargo door motor actuation control system.