Static Deformation Analysis of Leaf Spring used in Heavy Load Vehicles

International Journal of Research and Scientific Innovation (IJRSI) | Volume V, Issue VI, June 2018 | ISSN 2321–2705

Static Deformation Analysis of Leaf Spring used in Heavy Load Vehicles

Naveen I, Praveen R, Nagendran N, Rahul, Thiyagu C

 Department of Mechanical Engineering, SNS College of Engineering, Coimbatore, India

Abstract—This project deals with parabolic leaf spring simulation using nonlinear static, rigid and flexible dynamics combination. The model of the leaf spring is designed using CREO software, and the systematic analysis of the designed model is done using ANSYS software. The model selected is parabolic leaf spring. In this model 7 leaves are been used and material is used commonly for the leaf spring is steel (conventional material), here we have to modify the material like e glass epoxy and carbon fiber. The leaf spring is commonly used for the suspension in wheeled vehicles. The advantage of a leaf spring over other suspension system is that the end of the leaf spring can be guided along a definite path. The modeling of the leaf spring is done and using the analyzing software analyzing process is done. Here we are using nonlinear static, rigid and flexible dynamics combination analysis. At last the results are tabulated. The part modeling is done by using CREO and the assembly is also done by the same software. This will also help us to learn the 3D modeling software and the analyzing software.

I. INTRODUCTION

One of the main components of automobile that provide a good suspension and plays vital role in automobile application is Leaf Spring. It carries lateral loads, brake torque, driving torque in addition to shock absorbing. The advantage of leaf spring over other suspension system is that the ends of the spring may be guided along a definite path as the spring deflects to act as a structural member in addition to energy absorbing device. Composite material technology is used by automobile industries for structural components to obtain the reduction of weight without decreasing vehicle quality and reliability. Energy conservation is one of the most important objectives in any vehicle design and reduction of weight is one of the most effective measures for energy conservation as it reduces overall fuel consumption of the vehicle. In automobiles ten to twenty percent of the un-sprung weight is due to leaf spring suspension system. The leaf spring should absorb shocks, vertical vibrations and bump loads by means of spring deflection so that the potential energy stored in the leaf spring is converted to strain energy and then released slowly. While selecting the material for leaf spring elastic strain energy storage capacity of material is considered as main criteria.

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