• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2024, Vol. 60 ›› Issue (23): 152-163.doi: 10.3901/JME.2024.23.152

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Investigation of Tire Radial Vibration Property Using an Improved Tire Flexible Ring Model with Contact Effects

YU Xudong1,2, ZHAO Jian1,3, GUO Lie1,3, LI Gang1,2,4, HUANG Haibo5   

  1. 1. Ningbo Institute of Dalian University of Technology, Ningbo 315016;
    2. State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Dalian University of Technology, Dalian 116024;
    3. School of Mechanical Engineering, Dalian University of Technology, Dalian 116024;
    4. School of Mechanics and Aerospace Engineering, Dalian University of Technology, Dalian 116024;
    5. Faculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211
  • Received:2023-12-20 Revised:2024-04-16 Online:2024-12-05 Published:2025-01-23

Abstract: This study investigates radial vibration of a radial tire for passenger vehicles. An improved tire flexible ring model considering vertical load and contact length is proposed and established via the theoretical-modelling, experimental modal analysis and parameter identification. The natural frequencies of grounded tire are derived by mode superposition method. The proposed model includes three sub-models: a flexible ring model for tire vibration under free condition, a tire contact model without rolling, and a flexible ring model for tire vibration under grounded. Genetic algorithm is used to identify the structural parameters of tire theoretical model based on the modal experiment and ring model under free condition. Using the structural parameters obtained from parameter identification, the relationship between vertical load and vertical deformation is then obtained. The natural frequencies of the tire under different vertical load are calculated using the grounded tire vibration model and verified by comparison with numerical finite element results. Results indicate that the proposed tire improved ring model can effectively predict the frequency split phenomenon of grounded tires under different loads between 1 000 to 5 000 N, which providing a valuable idea for analysing tire vibration and noise under grounded condition.

Key words: flexible ring model, grounded tire vibration, modal analysis, tire vertical stiffness, frequency split phenomenon

CLC Number: