Optimization of geometric parameters for high-speed pantograph mechanism

The geometrical relation model of high-speed pantograph frame structure is developed in this paper. Considering the detailed demands of locomotive's stable current collecting for pantograph mechanism, the objective function of the translation of pantograph-head balancing bar and the confining conditions of the demands which the pantograph must meet to work properly, are determined. The geometric parameters of Schunk pantograph mechanism are calculated by using the single objective optimization technique as an example, and the ones obtained optimizes the pantograph performance. Also, the optimization result is analyzed thoroughly, and consequently the optimization's role in the design of pantograph is made more definite.