International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 05 | May 2023
p-ISSN: 2395-0072
www.irjet.net
Performance enhancement through design and analysis of All Terrain Vehicle Aditya Khotte1 1Academic Scholar
1Department of Mechanical Engineering 1PES Modern College of Engineering, Pune
---------------------------------------------------------------------***--------------------------------------------------------------------components individually as well as a complete unit. Modern Abstract - Designing an ATV (All-Terrain Vehicle) involves 5 major sub-systems, Chassis, Suspension, Steering, Brakes and Powertrain. Each system is designed with considering current cons in regards of available ATVs in market. Primary objective is to manufacture a lightweight ATV without compromising on performance whilst conforming to all safety standards. Suspension system, being one of the crucial assemblies of any ATV is designed for better driver comfort and light weight yet robust assembly. Steering system is designed with an objective to provide better maneuvering characteristics to the ATV. The powertrain is designed for higher acceleration as well as speed. Braking system is designed to ensure stable operation during braking at all dynamic conditions. This unique class of four-wheeled vehicle is utilized for amusement and exploration purposes.
Key Words: Vehicle, All terrain, Performance, Suspension, Steering, Single seat, CAE, Manufacturing. 1. INTRODUCTION BAJA SAE, the ATV design event provides a platform for undergraduate students to apply the principles of engineering science to expose their proficiency in the automotive world. Team Pegasus always had the solo aim of reeling off the race by designing the best performing, rugged and economical vehicle. First, a basic design prototype was created while keeping in mind the SAE rules and ARAI guidelines. In order to assess the ergonomics of the driver, a design mockup with anthropometric measurements (including allowances for clothing) of small and large males and females, from BIFMA Ergonomic Guidelines, 2002 was used and Indian standards of safety were applied. The chassis and other components were modeled in CAD. The design was rigorously analyzed in various conditions to obtain optimum safety and excellent durability with minimum weight. To assure safety in such a scenario, a rollover analysis was then performed. Evaluation of static stability and confirmation of adherence to the relevant Indian Standards were part of the rollover analysis. Therefore, the design was completed after safety was established. The quality of design and the true potential of the ATV is discovered only after a deep CAE analysis of all the © 2023, IRJET
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CAE technology has made it possible to be able to perform number of complex analysis with ease. The first and most crucial step for performing any finite element analysis is meshing. The geometry and properties of the component to be analyzed have to be studied in detail to select the meshing method which will provide most accurate results. After the meshing was done, the roll cage was tested in numerous iterations of bump, roll-over, torsion as well as modal analysis as shown here. To simulate real life conditions, also performed dynamic impact analysis of roll cage from all sides.
2. ROLL CAGE The roll cage or body of the vehicle is what determines the perspective of any onlooker as well as the fate of the vehicle in external conditions. all points of scrutiny have been worked upon in multiple stages of action and revision and to come up with the best possible design for the vehicle. To verify the design parameters and to make the vehicle more efficient, extensive CAE analysis of roll cage is performed. The results of these analysis were used to modify roll cage in multiple iterations of design. 2.1 Design Objectives a. To build a tubular space frame with rigid construction while maintaining low overall weight. b. To fabricate a frame considering driver safety & ergonomics in accordance with the rulebook. 2.2 Design Consideration a. Rulebook specifications and driver clearances b. Theories of failure c. Structural mechanics of tubes for various materials for optimum rigidity and weight d. Dynamic analysis of body under application of various loads for validation of the design e. Provide sufficient space for mounting of drivetrain, suspension & steering assembly ISO 9001:2008 Certified Journal
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