轮辋宽度对新能源车铝合金车轮刚度的影响规律研究

New energy vehicles have significant characteristics such as heavy curb weight, high suspension rigidity at the driving end, low tire flatness, and high acceleration torque. The operating conditions are much more stringent than traditional fuel vehicles. Many related technical specifications still used to the design and evaluation standards of traditional fuel vehicles, resulting in designs that cannot meet actual usage needs. This article investigates the stiffness and structural strength of new energy aluminum alloy wheels under different widths of wheel rims (7J, 7.5J, 8J). By comparing the static working conditions of tires through experiments and simulations, the force transmission characteristics of tire stiffness were verified, and the variation laws of radial stiffness, lateral stiffness, longitudinal stiffness, and torsional stiffness of aluminum alloy wheels under different width rims were obtained, which can be aided to solve the problem of mismatch between actual working conditions and design expectations.