Research on Lightweight Design of Car Body Mechanism Based on Fatigue Life

Abstract

The lightweight design of car body mechanism helps the vehicle to reduce its own
energy consumption and greenhouse gas emissions, which is conducive to the
realization of energy saving and environmental protection requirements, so it has high
research value. At present, most of the lightweight design of car body mechanism still
has much room to improve for the more complex body parts. Based on this, this paper
first studies the car body mechanism, and then analyses the fatigue strength analysis
and fatigue life analysis process of the car body mechanism. Finally, the optimal
measurement of lightweight design of car body mechanism based on fatigue life is
given, and the effect of lightweight design is analysed.