Simulation and parameter optimization of elastic sleeve undergoing axial compression

XU Xing-sheng, ZHOU Xu, WU Ying
(School of Mechanical Engineering, Hubei University of Automotive Technology, Shiyan 442002, China)

Abstract: Aiming at the structural optimization design of the elastic sleeve, the finite element simulation and compression experiment of the elastic sleeve were carried out, and the characteristic curve and performance of the axial force compression of the elastic sleeve in the process of axial compression were analyzed, and a spacer design method based on the combination optimization software Isight was proposed. The influence of the structural parameters of the elastic sleeve on the maximum Mises stress and the slope of the characteristic curve were analyzed by establishing an orthogonal test group. The second-order response surface model of them was constructed. Finally, the second-order response surface of them was optimized by non-dominated sorting genetic algorithm II. The results indicate that the relative errors between the optimized response results and the finite element calculation results are less than 4%, which indicate that the response surface method can approximately replace the finite element method to analyze the elastic spacer sleeve, and the calculated results are reliable. The analysis method and results can provide reference for the design of hub unit bearing elastic sleeve in practical engineering.
Key words: elastic sleeve; finite element; orthogonal test; second-order response surface; multi-objective optimization