| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure capable of effectively achieving a vibration control effect by an orifice passage without incorporating a special valve and an actuator in a fluid sealing type vibration control device utilizing the resonance action of a fluid. SOLUTION: A first divided chamber 74, a second divided chamber 76, a third divided chamber 78, and an auxiliary liquid chamber 50 are communicated to one another in series by a first orifice passage 54, a second orifice passage 94, and a third orifice passage 96. A part of the wall of the first divided chamber 74 is composed of a main body rubber elastic body 16 and a support rubber elastic body 84. A part of the wall of the second divided chamber 76 is composed of the support rubber elastic body 84. A part of the wall of the third divided chamber 78 is composed of a movable rubber plate 62. A part of the wall of the auxiliary liquid chamber 50 is composed of a flexible film 40. The first orifice passage 54 is tuned to a middle frequency band, the second orifice passage 94 is tuned to a low frequency band, and the third orifice passage 96 is tuned to a high frequency band. COPYRIGHT: (C)2004,JPO&NCIPI |
