Strength and rigidity analysis of heavy vehicle chassis for different frame cross section by analytically and FEA under various loading condition

Abstract

The chassis frame forms the backbone of a heavy vehicle, its principle function is to safely carry the
maximum load for all designed operating conditions. It should be rigid enough to withstand the shock, twist, vibration
and other stresses. An important consideration in chassis design is to have adequate bending stiffness along with
strength for better handling characteristics. Therefore, maximum shear stress and deflection are important criteria for
the chassis design. This paper describes Structural analysis of heavy vehicle chassis with constraints of maximum
shear stress and deflection of chassis under maximum load. In the present work, we have taken higher strength as the
main issue, so the dimensions of an existing vehicle chassis of AMW 2523 TP truck is taken for analysis with
materials namely BSK 46 Steel subjected to the same load. The three different vehicle chassis have been modeled by
considering three different cross-sections. Namely C, I and Rectangular Box type cross sections. For validation the
design is done by applying the vertical loads acting on the horizontal different cross sections.
Software used in this work Creo Parametric 2.0 & ANSYS 14.0.