Variable damping and stiffness structure

Details Variable damping and stiffness structure Variable damping and stiffness structure

1990-02-06

1991-08-06

Scherbel, David A.

Static structures (e.g., buildings)

Controlled by condition responsive means

52167DF, E04A 900

Patent

active

050366335

ABSTRACT:
A variable damping and stiffness structure is disclosed, which includes a variable damping device provided between posts, beams and braces of a structure or braces serving as variable stiffness elements and interconnecting a frame body and the variable stiffness element or the variable stiffness elements themselves. Not only the unreasonance property, but also the damping property of the structure are compositely judged by a computer on the basis of information obtained from sensors with respect to disturbances such as earthquake and wind to control the connecting condition of the variable damping device, whereby both the unresonance property and the damping property are controlled to reduce the response amount of the structure. Otherwise, the variable damping device is controlled by the judgement of only the damping property.

REFERENCES:
patent: 4429496 (1984-02-01), Masri
patent: 4587773 (1986-05-01), Valencia
patent: 4799339 (1989-01-01), Kobori et al.
patent: 4841685 (1989-06-01), Masri et al.
patent: 4890430 (1990-01-01), Kobori et al.
patent: 4901486 (1990-02-01), Kobori et al.
patent: 4922667 (1990-05-01), Kobori et al.
patent: 4959934 (1990-10-01), Yamada et al.

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