Finite Element Analysis and Optimization for the High Voltage Disconnector Self-elastic Contact Base on ANSYS Workbench

摘要

Developing a reliable engineering product requires huge amount of resources and knowledge. Often a huge amount of resources were wasted in trying to test products and understanding its reliability performances. Consequently, it takes obvious advantages of resources to develop a reliable engineering product using convenient and fast process in the fierce industrial competition. This paper optimized the structure of high voltage disconnector self-elastic contacts based on ANSYS Workbench. The parts are made of Cu-Cr alloy, the physical property is decided by the content of alloys, and the mechanical property is mainly decided by physical dimensions of self-elastic contacts which include section thickness, corner radius and middle groove width. The traditional design method for self-elastic contacts is tryout design which wastes huge amount of resources and knowledge and it is comparatively uneconomical. Using ANSYS workbench, the finite element model of the self-elastic contact was established, and the finite element analysis was carried out. Design spaces and sensitivity of the response variables, which were related to strength, stiffness and mass, were synthetically analyzed based on design of experiment and physical dimensions of self-elastic contact were optimized by the Optimizer DesignXplorer. After optimization, the self-elastic contact meets service conditions accurately, and the service life is evidently prolonged. Optimization results show that this structure optimization method based on ANSYS workbench is effective in the contact structure design and the capabilities to optimize multi-objective conflicting goals are highlighted.