Modelling and simulation of the vibration and stress state of the vehicle damping system

This study explores the modelling, simulation, and performance evaluation of a vehicle damping system aimed at enhancing ride comfort, structural durability, and vibration absorption efficiency under real-world operating conditions. A quarter-car suspension model was developed and analyzed using Finite Element Analysis (FEA) tools, with the 3D geometry created in Autodesk Inventor and simulations conducted in ANSYS Workbench. The system includes key components such as the spring coil, damper strut housing, pushing rod, hub, and upper spring perch. Static structural analysis was performed to assess stress distribution, strain, and deformation across components under typical loading scenarios. Modal analysis revealed the system’s natural frequencies ranging from 0 Hz to 78.48 Hz, with mode shapes indicating areas of high deformation. The maximum stress observed was 5.6 × 10⁷ MPa in the spring coil, remaining within the material’s yield strength limits. These results indicate that the vehicle damping system is structurally sound and dynamically stable, making it suitable for use in automotive suspension applications. The simulation framework significantly improves design optimization, enhances vibration isolation performance, and contributes to the development of more efficient and durable damping systems in the automotive industry.