| 摘要 |
PROBLEM TO BE SOLVED: To effectively damp and absorb axially inputted vibration while suppressing an increase in the size of a device and also effectively damp and absorb a vibration in a direction orthogonal to the axial direction even when the frequency of the vibration is low. SOLUTION: A low viscosity ethylene glycol is filled in a pressure receiving liquid chamber 76, an auxiliary liquid chamber 72, and a first orifice 66, and a high viscosity silicone oil is filled in a pair of differential liquid chambers 114 and 116 and a second orifice 120. Since the resistance of a liquid passing the inside of the second orifice 120 can be increased more than that of the ethylene glycol flowing in the first orifice 66, even if the route lengths and the cross sectional areas of the first orifice 66 and the second orifice 120 are the same, the frequency of a silicone oil flowing in the the second orifice at which a liquid column resonance occurs can be reduced less than that flowing in the first orifice 66, and the damping of the vibration obtained by flowing the silicone oil in the second orifice 120 can be increased. COPYRIGHT: (C)2006,JPO&NCIPI |
