Optimization of the dynamic stiffness of the body attachment points for a certain vehicle model

To solve the issue of abnormal vibration while accelerating during the development of a certain vehicle model, this paper utilizes the transfer path analysis (TPA) method to identify the key factors contributing to abnormal noise and vibrations within the vehicle. Through a combination of theoretical derivation and simulation analysis, the study examines the dynamic characteristics of the vehicle’s attachment points, particularly focusing on the shock absorber mounting locations. Based on the findings, a specific method for optimizing the dynamic stiffness of these attachment points is proposed. This optimization significantly improves the vehicle’s NVH (Noise, Vibration, and Harshness) performance, thereby reducing unwanted noise and enhancing the overall comfort and driving experience. The paper offers valuable insights and practical solutions to improve vehicle development processes and ensure superior NVH outcomes.