Analysis of properties of automotive vehicle suspension arm depending on different materials used in the MSC.Adams environment

摘要

Purpose: Under the study discussed in the paper, a geometric model of a car's suspension arm was prepared and subsequently imported into the MSC.Adams environment dedicated to studying dynamics of multi-body systems and then broken down into finite elements. Modal frequencies were established for the said model. The superior purpose of the study was to determine the loads affecting an arm operating in a complete car's suspension system for the road-induced input functions simulated in the Adams/Car module.Design/methodology/approach: Under the study in question, a geometric model of a car suspension arm was developed based on CAD software. The model was imported into the Adams/View environment and its body changed from rigid into a flexible one. Materials were defined and modal frequencies were established for the model prepared.Findings: The study outcome is an FEM-based suspension arm model and the modal frequencies established. The suspension arm model in question is to be applied in further numerical experiments related to studying dynamics of automotive vehicle suspension systems.Research limitations/implications: The numerical experiment results discussed in the paper require that the model should be adjusted to a real element. This, in turn, requires modal analysis of the suspension arm and comparison of the vectors describing the forms of free vibrations.Originality/value: The model developed will be applied as a flexible element in a complex suspension system of a complete car and used to determine its dynamic loads