Abstract: In order to solve the frame resonance problem of the door linkage device and improve its structural technology, the frame of the door linkage device was required to be optimized. The analysis method of ADAMS and ANSYS co-simulation was used for this optimal design, the rigidflexible coupling model of the linkage device was established, and the dynamic analysis of the frame was performed in ADAMS. Based on the analysis results, the weight, maximum stress, maximum deformation, frame 1st and 4th natural frequencies were determined as the optimization objective, and the frame size was optimized in ANSYS Workbench. The optimized model was dynamically analyzed again, and the results before and after optimization were compared and analyzed. The results indicate that the optimized frame strength and rigidity both achieve the requirements, and the mass of frame is reduced by 28.3%. The first 6-order natural frequencies of the frame are all reduced and the main excitation frequency is avoided. The optimal design of the frame structure makes up for the lack of empirical design.

Key words: lift; door linkage device; rigid-flexible coupling model; ADAMS; ANSYS