| 摘要 |
PROBLEM TO BE SOLVED: To provide sufficient damping effect for vibration in a wide high frequency zone by providing bulkhead itself for partitioning with an adjusting function for resonance frequency. SOLUTION: The bulkhead 8 for partitioning for dividing two main and auxiliary liquid chambers 10, 9 communicated and connected mutually through an orifice 11 for buffering is constituted by a laminated structure of a plurality of magnetic substance plates 8A, 8C, 8B and MR fluid 12B, 12A provided between adjacent magnetic substance plates 8A and 8C and between 8A and 8B in a sealed condition. An electromagnet 17 capable of adjusting magnetic field strength to change viscosity of MR fluid 12B, 12A is arranged in outer surroundings of the bulkhead 8 for partitioning of the laminated structure. COPYRIGHT: (C)2005,JPO&NCIPI |
