Anti-vibration rubber sheet

Vibration-damping rubber is a general term for rubber shock absorbers, primarily used to reduce noise and cushion shock hazards through vibration isolation and mitigation. It is applied in fields such as mobile vehicles, rail transit, building isolation pads, and industrial equipment [1] [3-4]. Its performance indicators include static stiffness and damping coefficient tanδ, the latter of which must maintain a high value and wide peak characteristic within the operating frequency and temperature range to optimize the shock absorption effect. The vulcanization system affects the material's stiffness, heat resistance, and fatigue life; traditional vulcanization systems can improve fatigue resistance but are limited in heat resistance [1-2]. Butyl rubber and nitrile rubber have higher damping coefficients in rubber materials, while natural rubber boasts excellent overall performance. In structural design, they are categorized into compression type, shear type, and composite type, with dynamic modulus tailored to different needs based on the load direction [2]. Building isolation pads use a composite structure of layered rubber and steel plates, reducing seismic response through horizontal deformation and lead core energy dissipation [3]. The global market size is continuously expanding, and the application of new materials and virtual simulation technology is driving products towards high precision and high-performance development.