www.tjprc.org SCOPUS Indexed Journal editor@tjprc.org THE DESIGN AND ANALYSIS OF A BRAKE DISC OF THE TWO WHEELER G.VINAY KUMAR 1 & Dr. P. HARI SANKAR 2 1 Student, Department of Mechanical Engineering, G.Pulla Reddy Engineering College, Kurnool, Andhra Pradesh, India 2 Associate Professor, Department of Mechanical Engineering, G.Pulla Reddy Engineering College, Kurnool, Andhra Pradesh, India ABSTRACT When we talk about vehicle performance one must think its capacity and engine efficiency. Along with this braking system is also one of the major essential system in a vehicle to the application of stop or slow. So in a brake system one of the important parts (i.e., brake disc) which faces different types of forces and thermal stresses in it during braking phase. So, a brake disc should have capability to bear all that force while in any working conditions. For this the material and the design should be the major criteria taken into account. We took Bajaj pulsar 220F model as an example for parameters. In this work 3 different disc designs were taken with 3 different materials such as Grey cast iron grade 250 (GCI), Stainless Steel (SS)and Titanium Alloy (TA).With all these, structural analysis and thermal analysis is done with the help of ANSYS 14.5. From the two analysis we got the results and we concluded that the disc 1 with stainless steel material possessing best outputs in terms of static structural and the same disc with grey cast iron possessed better results in terms of transient thermal among the 3 disc design models. So, the disc 1 is concluded as optimum disc design and suitable for automobile braking applications. KEYWORDS: Braking System, Heat Generation, Performance, Tangential Force & Analysis etc. Received: May 11, 2018; Accepted: May 31, 2019; Published: Jul 03, 2019; Paper Id.: IJMPERDAUG201950 INTRODUCTION When it comes to design a disc rotor, design plays a crucial role to withstand the forces exerted by brake pads, for this the author has designed a different models with different patterns and did the three analysis finally they met optimized disc [1].Settling of cracks near to the holes will be effect on performance and according to the authors, life span of a brake disc strictly depends on geometry like holes position, type of spokes and its shapes. So that geometry and placing of patterns is important while designing a disc rotor and it should possess better results [2].Sometimes there may be disturbing noises arising from the braking system and as well as creating vibrations. From the authors it is stated that the squeal noise and vibration mode patterns depends on the material properties. Material selection plays a very important role in the elimination of squeal noises and unwanted vibrations [3].In this paper the author has carried out a study on thermal effects on a disc and pad assembly. By this they done analysis on disc pad model to know the temperature while in contact [4].In a designing phase disc pattern also plays a major part which is more influential on output. In this the author modelled different fin type’s disc and fin number has been included. Though in their analysis the number of fins which are influenced in results. In their study the forward curved fins possess good results with optimal fin numbers and also influenced on Reynolds as well as Nusselt number which was improved by the disc designs [5] when it comes to contacting of brake pads and Original Article International Journal of Mechanical and Production Engineering Research and Development (IJMPERD) ISSN(P): 2249-6890; ISSN(E): 2249-8001 Vol. 9, Issue 4, Aug 2019, 509-516 © TJPRC Pvt. Ltd.