Abstract
Design and analysis of multi body system is a challenging task that requires the knowledge of machine design, computer aided design (CAD), finite element analysis and structural dynamics. Wheel loader vehicle is a type of earth moving machine which falls in the category of multi body system. This project is based on the concepts of reverse engineering where in which the wheel loader is designed and analyzed to precision. Initially the dimensions of the wheel loader are documented by using vernier caliper and full scale ruler. These dimensions are vitally implemented in generating the 3D model of the wheel loader. SolidWorks has been used for 3D model creation. In order to run the design to real time standards a few design modifications are taken into account. Design of lift arm cylinders, lift arms, tilt/bucket cylinder and connecting rod are modified to real time standards. Kinematics of wheel loader has been analyzed in SolidWorks. For kinetics and structural analysis the model has been exported from SolidWorks to MSC Visual Nastran Desktop 4D. In order to analyze the structural dynamics, the method of finite element analysis is used. The results obtain from the stress analysis are within the range of yield stress of materials used for designing of wheel loader. The design is verified to be real time with the factor of safety 1.2. Reverse engineering process is helpful to analyze the existing model and helps in improving design.