Study on Tire Pattern Structure Bionic Design Based on the Realization Mechanism of Cat’s Paw Pads Biological Function

doi:10.3901/JME.2024.24.274

Abstract

Abstract: There is a contradiction between tire noise and grip performance. In order to transplant the silent and grip biological function of cat’s paw pads in different gaits into the tire, and realized the purpose of improving tire noise and grip performance, it first carried out experimental analysis on the grounding performance of cat’s paw pads in different gaits with the help of vic-2d, so as to clarify the realization mechanism of different biological functions of cat’s paw pads; Then, the coupled bionic design of tire pattern structure is completed under the guidance of the biological function realization mechanism of cat’s paw pads, and the noise and grip performance before and after the bionic design of tire are compared. The results showed that when the cat’s paw pads moved under different gaits, it would produce adaptive changes in grounding properties, so as to meet the mechanical requirements of realizing different biological functional characteristics; Compared with the original tire, the bionic tire improved the radial excitation force during the rolling contact between the tread and the road surface, increased the deformation distribution in the X direction of the tread contact area, and realized the coordinated improvement of tire noise and grip performance (the noise value is reduced by 1.16 dB and the grip is increased by 53.21 N). The relevant research had a certain reference value for improving the R&D level of green tires in China.

Key words: green tires, biological function, coupled bionics, noise performance, grip performance

CLC Number:

U463

MEI Ye, ZHOU Haichao, WANG Guolin, LI Jingsong. Study on Tire Pattern Structure Bionic Design Based on the Realization Mechanism of Cat’s Paw Pads Biological Function[J]. Journal of Mechanical Engineering, 2024, 60(24): 274-281.

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