International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 04 | Apr 2024
p-ISSN: 2395-0072
www.irjet.net
DESIGN AND MULTIBODY ANALYSIS OF H-ARM WITH SINGLE UPPER LATERAL LINK SUSPENSION SYSTEM OF AN ALL TERRAIN VEHICLE Rajvardhan Sawant1, Atharva Bagwe2, Rahul Barbude3, Vishwesh Chauhan4, Dr Padmashri Patil5 1,2,4Student, Department of Production Engineering, Veermata Jijabai Technological Institute, Mumbai, India 3Student, Department of Mechanical Engineering, Veermata Jijabai Technological Institute, Mumbai, India
5Assistant Professor, Department of Physics, Veermata Jijabai Technological Institute, Mumbai, India ---------------------------------------------------------------------***--------------------------------------------------------------------1.1 Selection criteria for Rear Suspension Abstract - This research article presents a comprehensive Geometry analysis of the single upper lateral linked H-Arm suspension
system of a vehicle conducted through a series of performance evaluations and simulations. The research mainly focuses on conceptualizing, designing and performing Multibody Analysis of the rear suspension system primarily focusing on H-Arms of a vehicle to prove that it is a viable option. The work also puts an emphasis on meshing parameters and static and dynamic loading conditions to precisely analyze and design the H-Arms. The multibody simulation was performed to study how the suspension system would behave in practice and in coherence with other components.
For selection of the suspension system geometry, these considerations were kept in mind:
Based on these considerations, H-Arm with Single Upper Lateral Link was selected as it provided the following benefits-
Key Words: All Terrain Vehicle, Rear Suspension, Design, Lateral Link, Multibody Analysis, H-Arm, Suspension Testing, Endurance Race
1. INTRODUCTION
Suspension is defined as one of the important vehicle subsystems that essentially takes care of the forces and vibrations which causes significant wear and damage to the vehicle by damping it before they can be transmitted to the vehicle chassis frame. The suspension control arms or links connects a vehicle’s chassis to its wheels which allows wheel movement independent of the body. [1]
This research article mainly focuses on the rear suspension design of an All Terrain Vehicle (ATV) with the objective that the vehicle should be able to traverse across the rough terrain and should not fail throughout its lifecycle. Additionally, the aim was to enhance the ATV’s overall safety. Amongst the various rear suspension geometries, the H-Arm was mainly chosen due to its simplicity and control that it provides over the various suspension angles which is further discussed and considered during designing of the components.
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Impact Factor value: 8.226
Elimination of rear toe variation as the H-Arm provides support from two ends and ensures no rotation of the Upright about z-axis. [2] Ability to support higher lateral forces generated by tyres with the help of lateral link. Better anti-squat properties. Camber angles can be adjusted by controlling the various link lengths. (Camber is the angle made by the vertical axis of the wheel with the vertical axis of the ATV when viewed from the front or rear of the vehicle. [3])
Figure 1 shows complete rear suspension assembly modeled on SOLIDWORKS 2022.
Moreover, testing of the design was done to validate the FEA (Finite Element Analysis) results of the suspension assembly. These testing results provided us with real world insights that complemented the simulation and final fabricated designs.
© 2024, IRJET
Packaging Unsprung weight Control over the suspension angles Manufacturing ease Cost
Fig -1: H-Arm Suspension System with Single Upper Lateral Link
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