| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibration reducing structure for securing a space under a central part of a base body, while restraining the base body from vibrating.SOLUTION: A vibration reducing structure 1 includes a base body 6, and a pair of vibration reducing parts 50 for supporting the base body from below and mutually separately arranged in the reference direction D in parallel to a horizontal plane. Each vibration reducing part has an elastic member connected to the base body, and a rotational inertial mass mechanism respectively connected to the elastic member and a support part S2 positioned under the elastic member and operating by vibration in the vertical direction E of the elastic member. A natural frequency of an additional vibration system constituted of the elastic member and the rotational inertial mass mechanism, is synchronized with a natural frequency of the base body. |
