Optimization of Lower Arm Vehicle Using Response Surface Methodology

Abstract

This paper proposes an approach to investigate the influencing factors of the lower suspension arm by integrating finite element technique and response surface methodology with central composite design. Aluminum alloys (AA7079-T6) are selected as a suspension arm material. The structural model of the suspension arm was developed utilizing the Solid works. The finite element model and analysis were performed utilizing the finite element analysis code. The finite element model is correlated with design of experiments modal test. Influences of the various factors namely mesh size, loads are investigated. The combined approach is found to be statistically adequate. The validation simulation analysis proved its adequacy. A mathematical prediction model has been developed based on the most influencing factors. RSM aimed towards prediction of optimal lower suspension arm design through the various factors of the suspension arm geometrical construction.