| 摘要 |
A vibration damper comprising an elastic block having a cavity open at its bottom end, a support integrally united with the elastic block, a partition of a rigid material disposed adjacent the bottom end of the elastic block so as to close the cavity to form an operating chamber on one side of the partition, a diaphragm disposed on the other side of the partition and cooperating with the same to define an equilibrium chamber, and an orifice for effecting communications between the operating and equilibrium chambers which are filled with incompressible fluid. At least a portion of the diaphragm is formed of a thin layer of flexible material so that the equilibrium chamber is variable in its volume. The rigid partition undergoes substantially no deformation upon input of a vibrational energy into the operating chamber. A ratio of a dynamic spring rate to a static spring rate of the damper is not greater than 2.1 for high-frequency vibrations of higher than 50 Hz.
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