This vibration isolation rubber effectively prevents the transmission of vibrations to optical disc drives. It reduces data errors and sound skipping.
Optical disc drives mounted in computers, DVD/CD players, video game machines, etc., read delicate signals. Therefore, external vibration and impact can sometimes cause problems such as data errors or sound skipping. Yamauchi designs high-performance vibration isolation rubber components (dampers, insulators) by utilizing a wide range of materials, a proven vibration isolation theory and the most advanced analytical simulation. We provide full support to customer manufacturing and inspection activities in order to help customers produce high-quality products.
Resonance in a specific frequency range can be suppressed by adjusting the rubber hardness. For example, the resonance point can be lowered by decreasing the rubber hardness, as shown in the graph #1. We can set the hardness accurately in five steps in a wide hardness range of 3 to 60 (A). Yamauchi has the know-how to flexibly adjust the resonance point.
Resonance can be suppressed by varying the dynamic viscosity of the rubber. The graph #2 shows an example of reducing resonance magnification achieved by using a material with a high-tanδ (large loss coefficient, reduced reactive force). Yamauchi uses materials graded in a wide range of dynamic viscosity (tan δ) from 0.1 to 0.8 in order to meet the full spectrum of customer needs.
The video #1 shows how vibration isolation rubber suppresses vibration.
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