Abstract：To reduce the mass of mechanical elastic wheels, the lightweight analysis was conducted by the finite element analysis software of Abaqus. Considering the bending moment load and radial load conditions of the wheels at all times, the finite element model of mechanical elastic wheels was established, and the finite element simulation analysis was carried out. The force data of the nodes were extracted from the simulation results to determine the load of wheel hub and hinge group. The weighted variable density method was used to optimize the topology of the hub and hinge group of mechanical elastic wheel, and the 3D model was reconstructed after optimization. The results show that the mass values of the optimized mechanical elastic wheel, wheel hub and hinge assembly are reduced by 15.1%, 27.9% and 22.6%, respectively.
DENG Y J, ZHAO Y Q, LIN F, et al. Simulation of steadystate rolling nonpneumatic mechanical elastic wheel using finite element method[J]. Simulation Modelling Practice and Theory, 2018, 85: 60-79.
ZHAO Y Q. Research progress of a nonpneumatic mechanical elastic safety wheel [J]. Journal of Mechanical Engineering, 2019, 55(24): 105-116.（in Chinese）
YAN Z Y, GUO W, LU Y N, et al.Design and optimization of carbon fiber rim structural of formula SAE racing car[J]. Journal of Chongqing University, 2019, 42(8): 30-38.（in Chinese）
WANG Y Q,LIU X H,CHEN J S，et al. Lightweight design and multiobjective optimization of steel assembled wheel[J]. Journal of Harbin Institute of Technology, 2020, 52(7): 170-178.（in Chinese）
［8］
JUNG Y, LIM S, KIM J, et al. Lightweight design of electric bus roof structure using multimaterial topology optimisation[J]. Structural and Multidisciplinary Optimization, 2020, 61(3): 1273-1285.
［9］
ZHAO H W,CHEN Y H,LIU X G, et al. Research on hub lightweight based on lightweight materials[J]. IOP Conference Series: Materials Science and Engineering, DOI：10.1088/1757-899X/677/2/022076.
[10]
CHU D M, BAI W J, HE Y, et al. Research on lightweight technology of new carbon fiber wheel hub structure[J]. IOP Conference Series: Earth and Environmental Science, DOI: 10.1088/1755-1315/632/5/052071.
[11]
BENDSE M P, SIGMUND O. Material interpolation schemes in topology optimization[J]. Archive of Applied Mechanics, 1999, 69(9): 635-654.
[12]
ZHANG Y,SHAN Y C,LIU X T,et al. An integrated multiobjective topology optimization method for automobile wheels made of lightweight materials[J]. Structural and Multidisciplinary Optimization, 2021, 64(3): 1585-1605.
