Static analysis and optimization design of a special-shaped rod of the crab-like robot based on ANSYS Workbench

Abstract

Abstract This paper takes a self-designed crab-like robot special-shaped rod as the research object. To solve the problem that the actual gait does not conform to the theory encountered in the debugging stage, the following operations are carried out: after static analysis, the problem is that the special-shaped rod is complex and stressed. It is complicated, and the resulting deformation is too large, resulting in a decrease in the movement stability of the overall mechanism. To improve the stability of the mechanism, SolidWorks was used to complete the construction of the crab-like robot model, and ANSYS Workbench was used to perform static analysis and topology optimization on the special-shaped rod, so as to obtain the preliminary optimization results. On this basis, to better improve the stability of the mechanism, the secondary optimization of the special-shaped rod is carried out. The static analysis is carried out again and the obtained results are compared with the original design. The deformation of the special-shaped rod during the movement process is reduced by 13%. Under the premise of structural rigidity, the weight is reduced by 44. 73% and the stress distribution is more uniform. The above analysis results show that after the analysis and processing of the above methods, the special-shaped rod structure is further optimized, the stability of the overall structure is improved, and the effect of green design is achieved at the same time.