Design and Optimization of Steering Assembly for Baja ATV Vehicle

Document Type

Conference Proceeding

Publication Date

4-11-2023

Department

Department of Mechanical Engineering-Engineering Mechanics

Abstract

The steering assembly is a part of an automotive suspension system that provides control and stability. It provides control of direction, stability, and control over placement of the car. Optimization of the vehicle in weight results in enhanced performance and low fuel consumption, more so for an all-terrain race car. Optimization in this paper loosely refers to weight reduction and achieving the optimum stiffness to weight ratio of each component. This research encompasses various aspects linked to conceptualizing, designing, analysing, optimizing, and finally manufacturing the steering sub-system. Analytical calculations for mechanical design were performed using data from various experiments and jigs. CAD was developed using SolidWorks, and various analyses were performed using Altair HyperWorks. Finite Element Analysis (FEA) was primarily used to build stress plots and locate weak spots aiding optimization. This paper also focuses on using composites and compound designs to optimize the strength-to-weight ratio. Contact Non-Linear analysis has been performed at regions of frictional contacts and interfering contacts. Composites have also been analysed using Altair HyperWorks by defining contacts and material properties to validate the designs before manufacturing. Stepwise setup and results have been enlisted to aid anyone looking to perform a similar analysis. 47% reduction in weight of steering assembly is achieved through this research. These changes result in lighter and yet, stronger designs optimum for a race car.

Publication Title

SAE Technical Papers

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