Open AccessStress State Measurement and Result Analysis of Car Wheels
Author(s) -
Lu Cheng,
Ren Nianzu,
Yang Qingsong,
Chao Chen,
Cuihua Tian,
Zhengguo Liu
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/784/1/012021
Subject(s) - strain gauge , structural engineering , finite element method , stress (linguistics) , circumference , deformation (meteorology) , rotation (mathematics) , tire balance , bending , contact patch , point (geometry) , electronic differential , engineering , automotive engineering , materials science , steering wheel , composite material , mathematics , geometry , philosophy , linguistics , natural rubber , tread
The stress state of the car wheel is one of the guiding design indicators for the wheel structure. This paper uses the combination of finite element method and bench test to study the stress state of the wheel when driving straight. Through the finite element simulation of bending fatigue and radial fatigue, the position of dangerous points during the use of the wheel is obtained. The location of the dangerous point is used as the strain measuring point, and the test bench is built. The strain gauge is used to measure the strain of these points in the straight running condition, and the test results are analyzed. The results show that when the vehicle is traveling straight, the tire will have a greater impact on the load of the wheel. The squeezing deformation between the tire and the wheel, as well as the positive and negative rotation, will have an effect on the stress state of the wheel. The maximum strain of the wheel appears on the inside of the wheel rim, the rim is in contact with the tire and along the circumference of the wheel. The strain near the center of the wheel is small. Different loads have no effect on the variation of wheel strain, but have an effect on the maximum and minimum peaks.