International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 08 Issue: 07 | July 2021 www.irjet.net p-ISSN: 2395-0072 © 2021, IRJET | Impact Factor value: 7.529 | ISO 9001:2008 Certified Journal | Page 4842 Finite Element Analysis and Optimization of Motorcycle Frame for Weight Reduction Shivam Tripathi 1 , R.K.Ambikesh 2 1 PG Scholar, Harcourt Butler Technical University, Kanpur 208002, India 2 Assistant Professor, Harcourt Butler Technical University, Kanpur 208002, India ---------------------------------------------------------------------***--------------------------------------------------------------------- Abstract - The Frame of a motorcycle which carries the load of all the other parts hence make it one of the most important part of the motorcycle. The frame is steel made and heavy making the motorcycle less fuel efficient. In this work an attempt is being made to optimize the frame of motorcycle by removing the excess material from the frame. The material is removed by making holes in the existing steel structure where the stresses are comparatively low. A 3D model of the frame is designed using solidworks and Analysis is done using Ansys. Weight optimization of 11.37% is achieved. Design is found to be safe and within permissible limits. 1.INTRODUCTION Frame of any automobile is the base which carries the load of all the other components of automobile. It provides the shape to the vehicle. The frame of the motorcycle finds its root in bicycle and with the time it has gone many changes according to the need of the customer. one of the basic attempt for this design change is to minimize the weight while making it strong and stiff enough to sustain all the static and dynamic loads. The frame of common motorcycles is made of steel. This makes it heavy. It is an inherent problem of design that we always find extra material due to Which the weight of the component is increased several times . So there is always an scope to remove the excess material from the component and optimize it. In this work a similar attempt has been made with the motorcycle Frame. In this optimization of frame for weight reduction has been done my making holes by finding the less stressed areas of the frame. The modeling is done on solidworks and static analysis is done on Ansys. In this project firstly the frame is designed using Soliworks and imported to Ansys While using Steel as a material. The static analysis is performed by applying static load to the frame and section with less stress has been pointed out. Now the excess material is removed from these less stressed area using Solidworks and again analyzed for the static loads applied previously Using excess. Being light weight it will increase the efficiency of the motorcycle several times. The analysis is done on Ansys R 18.1 Von-misses stress and deformation is found and weight comparison is done to find the percentage reduction in weight that has been achieved and optimization achieved. 1.2 CAD Computer Aided design is described as use of computer or take the aid of computer for designing, modeling and analysis. CAD reduces the error in the design, modification made easy and effort has been reduced. Make the work less time consuming and cost-effective. Accurate results are obtained without making actual prototypes and experimental works. 2. OBJECTIVE OF WORK I. Designing a model of frame using Solidworks and evaluate the stresses and deformation in the system II. Bringing changes to the frame for optimization for weight reduction. III. Static Analysis of optimized system for checking its feasibility. 3. DIMENSIONS AND SPECIFICATION OF FRAME USED For this work frame of Yamaha Fz is used which is a double- cradle frame made of steel. It has following dimensions. Table- 1: Dimensions and weights Length*Height*Width 2073X700X1050 mm Wheel Base 1330mm Ground clearance 160 Fuel Capacity 12L Kerb Weight 150 kg Frame weight 21.98kg 4. MATERIAL USED In this work steel is used as the material to design the frame of motorcycle. Yamaha FZ conventionally uses the steel frame having following properties Table-2 : Property of steel used in frame Young’ s Modulus (GPa) 210 Shear Modulus (GPa) 79.3