Structural Engineering and Mechanics

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Analysis of multi leaf spring based on contact mechanics - a novel approach

  • Kumaravelan, R. (Department of Mechanical Engineering, Velalar College of Engineering and Technology) ;
  • Ramesh, S. (Department of Mechanical Engineering, Annai Mathammal Sheela Engineering College) ;
  • Gandhi, V.C. Sathish (Department of Mechanical Engineering, University College of Engineering Nagercoil, Anna University) ;
  • Agu, M. Joemax (Department of Mechanical Engineering, CSI Institute of Technology) ;
  • Thanmanaselvi, M. (Department of Civil Engineering, University College of Engineering Nagercoil, Anna University)
  • Received : 2013.04.17
  • Accepted : 2013.08.07
  • Published : 2013.08.10
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Abstract

A leaf spring, especially the longitudinal type is liable and persistent element in automotive suspension system. In the present scenario the composite materials are widely used in the automobile industries has shown a great interest in the replacement of steel spring due to high strength by weight ratio. Previous investigations focused on stresses and displacement analysis of single leaf spring for different materials. The present work aims to design and analysis of leaf spring for two different cases by considering the Young's modulus to yield strength ratio. In the first case the analysis deals with the design and analysis of a single cantilever solid triangle beam which is an equivalent beam of a spring with three leaves having uniform strength. In the second case a 3-beams of rectangular cross section has been considered which is equivalent to a spring with three leaves. The analysis was carried out based on contact mechanics approach. The results were compared, that the fiberglass composite leaf spring is suitable for high loading capacity, reliability and efficiency.

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References

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