International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 05 Issue: 04 | Apr-2018 www.irjet.net p-ISSN: 2395-0072 © 2018, IRJET | Impact Factor value: 6.171 | ISO 9001:2008 Certified Journal | Page 892 MODELLING AND ANALYSIS OF TWO WHEELER SUSPENSION SYSTEM A. Harshavardhan Reddy 1 , G. Rajasekhar Reddy 2 , G. Phanindra 3 , K. Vijay Kumar 4 1 Asst. Professor, Mechanical, Gurunanak Institutions, Telangana, India 2,3,4 Student, Mechanical, Gurunanak Institutions, Telangana, India ---------------------------------------------------------------------***------------------------------------------------------------------- ABSTRACT - A suspension system or shock absorber is a mechanical device designed to duty is to absorb or dissipate energy. In a vehicle, it reduces the effect of travelling over rough ground, leading to improved ride quality, and increase in comfort due to substantially reduced amplitude of disturbances. The design of spring in suspension system is very important. In this project a shock absorber is designed a 3D model software using solid works. The model is also changed by changing the material and load of the spring. Structural analysis and is done on the shock absorber by varying material for spring, magnesium, steel and titanium. The analysis is done by considering loads, bike weight, single person and 2 persons. Structural analysis is done to validate the strength and static structural analysis is done to determine the total displacements for different loads and materials. Comparison is done for three materials to verify best material for Shock absorber. Key Words: ANSYS, Damp Stock, Kinetic Energy, Ride Quality, SOLID WORKS. 1. INTRODUCTION TO SUSPENSION SYSTEM Shock absorbers are important part of vehicle's suspension- which is fabricated to reduce shock impulse. Shock absorber minimizes the effect of travelling on a rough ground. Modern vehicles are designed with strong shock absorbers to tolerate any type of bouncy conditions. If supposedly shock absorber is not used then to control excessive suspension movement- stiffer springs will be used. The shock absorbers duty is to absorb or dissipate energy. One design consideration- when designing or choosing a Shock absorber is where that energy will go. In most dashpots- energy is converted to heat inside the viscous fluid. 1.2 Literature Review For providing the best design of spring coil to the suspension system of two wheeler vehicles. A lot of technical papers and reduction processes were studied before deciding upon the most feasible process for project. The following list presents a gist of the main papers referred to, throughout the duration of the project. 1.3 Construction and Working Construction Fig. 1 Construction Components are: 1. Rod 2. The piston with seals. 3. Cylinder. 4. Oil reservoir. 5. Floating piston. 6. Air chamber 2. MODELING OF COMPONENT Part 1: Lower Shaft To create go to SOLIDWORKS software and click on start –and select part design module. In part design module then go to sketcher tool and select sketcher tool and select required plane. Then we enter into sketcher module and go to profile and create a profile structure as shown in fig. FIG.2 Sketch for Lower Suspension