Preliminary communication

https://doi.org/10.17559/TV-20150225090554

Structural optimization of MacPherson control arm under fatigue loading

Javad Marzbanrad ; School of Automotive Engineering, Iran University of Science and Technology, Narmak, 16846-13114, Tehran, Iran
Abolfazl Hoseinpour ; School of Automotive Engineering, Iran University of Science and Technology, Narmak, 16846-13114, Tehran, Iran

Abstract

In this research, the topology and shape optimization of a MacPherson control arm has been accomplished to achieve lighter weight. Present automotive market demands low cost and light weight component to meet the need of fuel efficient and cost effective vehicle. This in turn gives the rise to more effective use of materials for automotive parts which can reduce the mass of vehicle. Since automotive components are under dynamic loads which cause fatigue damage, considering fatigue criteria seems to be essential in designing automotive components. At first, in order to create severe loading condition for control arm some rough roads are generated through power spectral density. Then, the most critical loading conditions are obtained through multi body dynamics analysis of a full vehicle model. Then, the topology optimization is performed based on fatigue life criterion using HyperMesh software, which resulted in 50 % mass reduction. In the next step a CAD model is created using CATIA software and shape optimization is performed to achieve accurate dimensions with less mass.

Keywords

fatigue life; MacPherson control arm; shape optimization; topology optimization

Hrčak ID:

183054

URI

https://hrcak.srce.hr/183054

Publication date:

15.6.2017.

Article data in other languages: croatian

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