Chapter 44 A Method for Truck Frame Strength Analysis with Simplified Suspension Model

摘要

The truck frame is an important part bearing loads from engine, chassis, body and other assemblies. Traditional strength analysis method considers the frame alone, so the stress result cannot reflect the effect of leaf spring deformation under load. This paper studies a light truck frame. Using equivalent beam method, frame and simplified suspension model were built to execute strength analysis for bending, torsion, braking and steering cases. A structure optimization scheme is applied for the high-stress regions, which provides a reference for truck frame design.