城市轨道交通车辆单臂受电弓结构参数的优化设计与验证

Optimum Design and Verification of Geometric Parameters for Single-arm Metro Pantograph Structure

在建立城市轨道交通车辆单臂受电弓结构数学模型的基础上,以受电弓工作高度范围、落弓高度和保证静态接触压力恒定为约束条件,以受电弓工作高度范围内弓头轨迹、所需升弓转矩与升弓力臂匹配、弓头平动等为目标,运用多目标优化技术和MATLAB软件对城市轨道交通受电弓的结构参数进行优化,以达到最优设计参数。在建立受电弓三维模型基础上,运用ADAMS虚拟样机技术进行仿真分析,验证了MATLAB软件优化结果和优化方法的正确性。

The geometric model of single-arm metro pantograph frame structure is introduced in this paper. Considering the objective function of collector head trajectory, the optimum design will define the pantograph torque and pantograph force arm, balance the pantographhead over the working range, confine the conditions for pantograph＇ s work, in which the height range, housed height and steady static contract force are determined. The geometric parameters of pantograph mechanism are calculated by using several objective optimum techniques and MATLAB software to ensure pantograph＇s performance. Through building a 3D model of pantograph, the geometric parameters are simulated and analyzed by using the virtual sample technique and ADAMS software. The result verifies the correctness of the optimum techniques and MATLAB software.