面向装配结构的拓扑优化参数影响分析

With the improvement of precision and ultra-precision processing technology, the processing quality of individual mechanical parts can be fully guaranteed. But the quality of the assembly connector is difficult to guarantee as easily as individual parts. In order to improve the robustness of the topology optimization method for the connection performance of the assembly structure, while providing a variety of topology optimization layouts for manufacturing, the flexible assembly structure was taken as the the optimization object, and the influence of the optimization parameters on the optimization process during the topology optimization of the assembly structure is analyzed. The "Boundary Effect" of the assembly topology optimization process is eliminated by introducing the "Anisotropic Filtering" method, on the basis of the influences of filter radii on the optimization results. Moreover, to improve the manufacturability of the optimized structure, two minimum length control methods are introduced, and their optimization effects are compared and discussed to ensure the manufacturability of the topology optimization design results. Finally, the influence mechanism of the sharpness factor and threshold parameter in the smooth Heavside function on the optimization results is analyzed.