ANALYSING VIBRATION CHARACTERISTICS OF CAR CHASSIS UNDER CENTRAL GOVERNMENT LAW RESOURCE ACT IS 14884 (2000) FOR SAFE AND COMFORTABLE DRIVING USING 3D MODELLING TECHNIQUES AND FEA WITH FATIGUE LOAD, FREQUENCY AND SHAPE MODEL

Comprehensively explores chassis design in the automotive industry, focusing on mitigating vibrations and enhancing vehicle safety. The study delves into the intricate dynamics of chassis construction by utilizing Noise, Vibration, and Harshness (NVH) characteristics. The paper uses advanced 3D modelling techniques with CATIA V5 and Hyper mesh software to determine the natural frequency and analyze the mode shape of vehicle chassis structures. These analysis serve as a foundation for improving assembly methods and understanding the dynamic behaviour of chassis under various loads and real-world road conditions. The proposed idea identifies dynamic properties such as mode shape, frequency response, and stress distribution as critical factors influencing chassis performance. Factors contributing to dynamic vibrations, including power train unit forces, tyre responses, and structural deficiencies, are analyzed to introduce design alterations and safety enhancements. The primary objective is to reduce vibrations, extend chassis lifespan, and enhance vehicle safety during operation. Modal analysis and Finite Element Analysis (FEA) are employed to investigate dynamic behaviour and identify critical deflection regions, providing valuable insights for implementing practical solutions in automotive chassis design.