| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluid sealed type vibration control device of a novel structure capable of effectively demonstrating the suppressing effect of abnormal noise and vibrations caused by the cavitation while consistently ensuring the targeted vibration-isolating performance. SOLUTION: A plurality of abutting and holding parts 74 to be held in an overlapping manner on a partition member 30 are provided on the periphery of an outer edge of a closed rubber elastic plate 66 arranged to close a communication port 42 of a pressure-receiving chamber 60 with a balancing chamber 62, and an elastically deformable area 76 which are elastically deformed based on the differential pressure between the pressure-receiving chamber 60 and the balancing chamber 62 to open the communication port 42 by the detachment from the partition member 30 between the peripheries of the abutting and holding parts 74 of the closed rubber elastic plate 66. Further, a nonlinearity means is provided, which has the nonlinear elastic characteristic of the elastically deformable area 76, and further hardens the elastic characteristic in a nonlinear manner as the deformation is increased. COPYRIGHT: (C)2010,JPO&INPIT |
