Study on Influence of Wear on Tire Cornering Stiffness and Aligning Stiffness

doi:10.3901/JME.2020.12.174

Abstract

Abstract: Based on the results of tire handling test of tires, the cornering properties of the tire under different wear conditions are studied, and the variation law of the tire lateral deflection characteristic parameters with the tire wear amount is obtained. By establishing a tread wear model to clarify the mechanism of tire wear characteristics change, the expression of tread stiffness, aligning stiffness and wear amount is obtained. Then, based on the expression and the tire brush model considering the tire wear state, a complex brush model of the tire considering the tread wear is established. The relationship between the wear amount and the tire cornering stiffness is obtained by the model derivation. The relationship is used as the basic expression formula of UniTire modeling to establish the UniTire cornering model considering the tread wear. In order to verify the correctness of the model, three kinds of wear state cornering slip data are used to fit, and the UniTire cornering model considering wear is obtained, the tire cornering properties in the other two wear states is predicted. The error between the simulation results of the prediction model and the experimental results is small, which effectively proves the predictive ability of the UniTire cornering model considering wear. The UniTire tire model helps provide theoretical and technical support for the UniTire model indoor and outdoor expansion applications.

Key words: tire, wear, cornering stiffness, aligning stiffness, bush tire model, UniTire tire model

CLC Number:

TG156

LU Dang, LU Lei, WU Haidong, LI Lun, WANG Wei, Lü Manyi. Study on Influence of Wear on Tire Cornering Stiffness and Aligning Stiffness[J]. Journal of Mechanical Engineering, 2020, 56(12): 174-183.

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