Tire Buttress Ridge-Valley Structure for Tread Noise Reduction

The groove portions introduce controlled flexibility into the otherwise rigid buttress portion. By creating these localized flexible regions through the grooves, the buttress portion can dynamically respond to vibration inputs from the road surface, absorbing and dissipating vibrational energy rather than transmitting it rigidly to the tread portion. This dynamic behavior reduces noise while maintaining adequate structural stability.

The groove portions modify the physical parameters of the buttress portion by changing its local stiffness and damping characteristics. The grooves create regions with different mechanical properties compared to the surrounding solid rubber, effectively tuning the vibration transmission characteristics of the buttress portion to reduce noise transmission to the tread while preserving necessary structural support.

The groove portions divide the buttress portion into multiple functional segments that can be independently optimized. Each groove acts as a discrete vibration isolation element, and their positions and dimensions can be adjusted to target specific vibration frequencies or modes. This modular segmentation approach achieves effective vibration attenuation while keeping the structural design relatively simple and manageable.

The groove portions are designed with specific parameters (depth, width, spacing, curvature) that can be optimized to achieve the desired vibration attenuation performance. By carefully selecting these parameters, effective vibration suppression is achieved without requiring excessive groove complexity or数量, balancing performance improvement with structural simplicity.