Vibration suppressing structure

Static structures (e.g. – buildings) – Means compensating earth-transmitted force – Relative motion means between a structure and its foundation

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

52 1, E04B 198

Patent

active

053477723

ABSTRACT:
A vibration suppressing structure including a main structure and a vibration suppressing section disposed in an upper portion of the main structure which is provided with an auxiliary structure adapted to undergo vibration in response to the vibration of the main structure occurring due to a disturbance, an auxiliary mass, a driving device, and a damper. The displacement of the auxiliary structure caused by the vibration is transmitted to the auxiliary mass via the driving device, and the auxiliary mass is controlled by an amount of movement directly proportional to the amount of displacement. The vibration suppressing section is arranged such that the damping coefficient of the damper, the magnitude of the auxiliary mass, and the ratio of the amount of movement of the auxiliary mass to an amount of displacement of the auxiliary structure which are included in a mass matrix M.sub.T for the vibration suppressing section, a damping matrix C.sub.T, a stiffness matrix K.sub.T, a location vector i.sub.T of a disturbance, are adjusted in such a manner that the relationships of (.omega..sub.T j).sup.2.M.sub.T.I.sub.T =K.sub.T.I.sub.T and 2h.sub.T..omega..sub. T j.M.sub.T.I.sub.T =C.sub.T.I.sub.T hold, with respect to a natural frequency .omega..sub.T.sup.j of a predetermined damping factor h.sub.T, thereby constituting a system of a pseudo-single degree of freedom. A vibration suppressing structure is obtained which is capable of effectively suppressing vibrations in a multi-storied structure and which can make effective use of the space within the structure.

REFERENCES:
patent: 4841685 (1989-06-01), Masri et al.
patent: 5005326 (1991-04-01), Ishimaru et al.
Vibration-Averting Structure for Adding Vertical Damping Function Using Levers, Shinji Ishimaru et al., Dec. 12-14, 1990.
Printed Publication distributed at a Congress of a Scientific Society on May 16, 1991.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Vibration suppressing structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vibration suppressing structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vibration suppressing structure will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2428484

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.