DOI : 10.23883/IJRTER.2017.3060.Q4XBY 156 DESIGN AND ANALYSIS OF CHASSIS OF STUDENT FORMULA RACE CAR Raunak Mishra 1 ,Shubhanandan Dubey 2 , Rahul Jaiswal 3 , Mustaque Mohammad 4 . 1, 2, 3 Department of Automobile, Theem College of Engineering, University of Mumbai, Maharashtra, India Abstract—SUPRA SAEINDIA is one of the yearly organised national level competitions by the Society of Automotive Engineers in India. Teams from all over India from various technical institutes participate in this event. The teams are supposed to design, analyse and fabricate the F1 type race car in the campus premises itself. The sole focus of this paper is to find out the best and the most suitable material for the chassis of SAE SUPRA student formula race car of team AVIATORS in the year 2016. The chassis plays an important role in a race car and it is also considered as the backbone of the race car. The chassis should be strong enough to withstand the shock loads, vibration and other induced stresses as it has to sustain the racing environment. In the current work, greater strength has been taken as the main dominating issue, so the dimensions of an existing space frame chassis is taken for analysis with materials namely SAE AISI 4130 Carbon steel, SAE AISI 1020 Carbon steel, SAE AISI 4027 Carbon steel for the same load. The materials will be checked for their performances in different loading conditions and the results will be compared for them. The design process is purely based on SUPRA SAEINDIA 2015 rule book and the anthropometrical data of the specified human (95 th percentile male).The CAD software which is used for designing is SOLIDWORKS 2015.A thorough study of static and dynamic loading conditions were done and were analytically calculated. The correct boundary conditions were applied during FEA(Finite Element Analysis)test which was carried out on ANSYS 2015. Keywords—SAE INDIA, Tubular Space Frame chassis, chassis modelling, structural analysis. I. INTRODUCTION SUPRA SAEINDIA is one of the yearly organised national level competitions, in this event the teams are supposed to design, analyse and fabricate the F1 type race car in the campus premises itself. The number of the teams which participate annually in this competition is more than 185.Different technical inspections are done in two stages i.e. static and dynamic testing. The static testing includes brake test, tilt test, cost report presentation, engineering design report and business presentation. The dynamic tests include acceleration test, skid pad test and endurance test. The main philosophy behind the impact test is that to assure the driver safety in the survival cell. The survival cell should be strong enough to absorb the force and to distribute the force from front to the back without large deflection to the chassis. The major tests which are carried out on the chassis to ensure its safety are front impact test, side impact test and rear impact test. For optimum performance of the chassis in different racing conditions it should meet following criteria: The material and manufacturing costs should be reasonable It should have low centre of gravity It should have minimum weight to stiffness ratio II. PROBLEM STATEMENT The objective of thesis work is to find out best and most suitable material for the chassis with the constraints of equivalent stress and deflection of the chassis under maximum load condition. Design
7
Embed
DESIGN AND ANALYSIS OF CHASSIS OF STUDENT … AND ANALYSIS OF CHASSIS OF STUDENT FORMULA RACE CAR ... Abstract—SUPRA SAEINDIA is one of the yearly organised national level competitions
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
International Journal of Recent Trends in Engineering & Research (IJRTER) Volume 03, Issue 03; Month - 2017 [ISSN: 2455-1457]
@IJRTER-2017, All Rights Reserved 158
L=length
I=moment of inertia
E= elastic modulus
VI. DESIGN OF CHASSIS FRAME USING SOLIDWORKS
Figure1. SOLIDWORKS model of Space Frame Chassis
VII. FINITE ELEMENT ANALYSIS OF CHASSIS USING ANSYS WORKBENCH The model of chassis is created in Solidworks and saved in IGES format so that it can be directly
imported into ANSYS workbench.
7.1. Applied Boundary Conditions:
Chassis frame weight
40 Kg
Total vehicle weight
350 Kg
Force -for front
9G=350*9*9.81=30000N
Force -for front
9G=350*9*9.81=30000N
Mesh size
2.54 mm
Acceleration due to gravity
9.81
7.2. Meshing and Structural Analysis of Chassis
International Journal of Recent Trends in Engineering & Research (IJRTER) Volume 03, Issue 03; Month - 2017 [ISSN: 2455-1457]
@IJRTER-2017, All Rights Reserved 159
Figure2. Mesh and Boundary Conditions for Space Frame Chassis
7.3. Structural analysis of Space Frame chassis in Front Impact