Driven viscous damper adjustable in damping force

A technology of viscous damper and damping force, which is applied in the direction of shock absorber, shock absorber, liquid shock absorber, etc., to achieve the effective effect of structure damping control

Active Publication Date: 2013-10-02
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to use a viscous damper for energy dissipation and shock absorption to reduce the interstory displacement of the building str...

Method used

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  • Driven viscous damper adjustable in damping force
  • Driven viscous damper adjustable in damping force
  • Driven viscous damper adjustable in damping force

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Embodiment Construction

[0018] The specific embodiments of the present invention will be described in detail below in conjunction with the technical solutions and accompanying drawings.

[0019] A passive viscous damper with adjustable damping force, mainly composed of a viscous damper, gears, racks, baffles, etc.; the viscous damper consists of a liquid cylinder 9, a piston 10, a piston rod 20 and a piston rod connector 11; the liquid cylinder 9 is a cylindrical container with an inner cavity piston 10, the liquid cylinder 9 is parallel and fixed on the lower beam 12, and the piston rod 20 is fixed on the lower beam 12 through the vertical piston rod connector 11; The upper surface of the liquid cylinder 9 is fixed with a rectangular plate support body 21 parallel to the liquid cylinder 9 and with a longitudinal hollow chute 14. On the upper surface of the support body 21, there are two longitudinal holes penetrating to the chute 14 in depth. Slideway 13, the right end of slideway 13 reaches the edg...

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Abstract

The invention discloses a driven viscous damper adjustable in damping force, and belongs to the technical field of civil engineering structural vibration damping. According to the driven viscous damper adjustable in damping force, the Bang-Bang active control algorithm principle is used, the character that a directional gear which can anticlockwise rotate and a directional gear which can clockwise rotate can only rotate in one direction is used, and therefore a mechanism which is composed of directional gears, free gears, a rack track, baffles and a viscous damper is designed. When interlayer displacement occurs in the structure, the process where displacement returns to the balance position is not influenced by inhibition action of the damping force of the viscous damper, and an oil damper is made to be more effective in structural vibration damping control.

Description

technical field [0001] The invention belongs to the technical field of vibration reduction of civil engineering structures, and relates to the design of a vibration damper composed of a building structure using directional gears, supports, steel plates and viscous dampers. Background technique [0002] The traditional seismic design of structures is to "resist" earthquake action by enhancing the performance of the structure itself. However, because people cannot accurately estimate the earthquake intensity and characteristics that the structure may encounter in the future, under the action of strong earthquakes, the structure may not meet the safety requirements, resulting in serious damage or even collapse. The emergence of structural vibration control technology provides an effective way to improve the safety of building structures under strong earthquakes. The viscous damper is a common damping device at present, but the viscous damper always provides damping force durin...

Claims

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Application Information

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IPC IPC(8): F16F9/19E04B1/98F16F9/32
Inventor 霍林生曲春绪李宏男
Owner DALIAN UNIV OF TECH
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