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将非线性有限元理论应用于机车受电弓弓头弹簧系统的研究.利用一种新型、稳定的接触问题求解方法———直接约束法,对受电弓和接触网进行接触计算分析,并将工程优化算法融入有限元分析的全过程,实现了弓头弹簧关键参数的优化设计.研究结果表明,利用该方法可较好地获得具体工况条件下弓头弹簧参数与受电弓受流性能的关系,求取最优的弓头弹簧参数值,为设计新型机车受电弓产品的弓头弹簧系统提供了科学适用的工具.
The nonlinear finite element theory is applied to the study of locomotive pantograph bow-head spring system.Using a new and stable solution to the contact problem --- the direct constraint method, the pantograph and catenary are calculated by contact analysis The engineering optimization algorithm is integrated into the whole process of finite element analysis to realize the optimization design of the key parameters of the bowhead spring.The results show that the bowhead spring parameters and the pantograph flow under the specific working conditions can be obtained well, The relationship between the performance of the bow and the bow parameters to obtain the optimal value for the design of the new bow pantograph bow spring system provides a scientific tool.