Research on the effect of tire pattern design on noise and its reduction.

This article focuses on the study and optimization of tire tread design factors to reduce tire pattern noise, verified using a 205/55R16 tire model. It employs four main approaches: pitch arrangement optimization, pipe resonance experiments, orthogonal experimental design of transverse grooves, and tread block shift simulation. Key findings include an 8.7% reduction in total harmonic energy and a 12% decrease in peak harmonic noise through pitch optimization using the proposed 3-Sum concept, identification of optimal longitudinal and transverse groove dimensions to minimize pipe resonance and pumping noise, and a −7 mm center rib block shift that reduces noise by 2.21 dB(A). On-board noise tests confirmed these optimizations, showing a reduction of approximately 0.5 dB(A) in sound pressure level and a 2.92 dB(A) decrease in root mean square noise within the 700–1300 Hz frequency band, demonstrating effective mid-to-high frequency noise mitigation in vehicle cabins.