| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluid enclosure type vibration control device having new structure capable of providing a vibration control effect based on the resonant action of enclosed non-compressive fluid over a wide frequency range. SOLUTION: A part of each wall section of pressure receiving chambers 56, 64 and 86 is made of an elastic wall member 42 capable of elastic displacement, and the elastic wall member 42 is elastically welded to the restriction member 33 arranged on the side opposite to the pressure receiving chambers 56, 64 and 86. The pressure receiving chambers 56, 64 and 86 are communicated with a balance chamber 38 through a first orifice passage 68, and an acting air chamber 40 is formed on the opposite side of the balance chamber 38 with a flexible membrane 34 intervening between them, and negative pressure adjusting means 66, 76, 78, 80 and 82 are provided to generate different level of negative pressure according to the vibration frequency to be controlled. |
