| 摘要 |
PROBLEM TO BE SOLVED: To give high damping force to vibration damping equipment with a piled structure consisting of an elastic plate and a rigid plate and also reduce heat generation by the inner friction of the elastic plate. SOLUTION: A vibration damping equipment 2 with a layered structure is composed by piling several elastic plates 8, 9, 10 and rigid plates 11, 12 alternately between upper/lower end surface plates 4, 5. The elastic plates 8, 9, 10 are in a ring shape and clearances 14, 14,... are formed in its central part. The upper end surface plate 4 and the rigid plates 11, 12 have cylindrical parts 4a, 11a, 12a arranged on a coaxis respectively and the clearances 17, 17,... are formed between these cylindrical parts 4a, 11a, 12a. A hollow part 21 consisting of these clearances 14, 14,... and 17, 17,..., is charged with viscous fluid 25 such silicon oil with an air layer 24 left. |
