Suspended frequency modulation mass damper

A frequency modulation mass damping and suspension technology, which is applied to building components, shockproof, etc., can solve the problems that the adverse effects of the damper cannot be completely eliminated, the frequency cannot be adjusted, and the energy consumption capacity is poor, so as to improve the actual control effect and occupy a large volume Small, the effect of improving energy consumption capacity

A frequency modulation mass damping and suspension technology, which is applied to building components, shockproof, etc., can solve the problems that the adverse effects of the damper cannot be completely eliminated, the frequency cannot be adjusted, and the energy consumption capacity is poor, so as to improve the actual control effect and occupy a large volume Small, the effect of improving energy consumption capacity

CN101806104AInactive Publication Date: 2010-08-18SOUTHEAST UNIV
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  • Suspended frequency modulation mass damper
  • Suspended frequency modulation mass damper
  • Suspended frequency modulation mass damper

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Embodiment Construction

[0018] The technical solution of the present invention will be described in detail below by means of embodiments in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.

[0019] Such as Figure 1~3 As shown, a suspended frequency modulation mass damper includes a spring 1, a mass block 2 and a viscous fluid damper 3, and the mass block 2 is suspended on the upper suspension beam or On the top plate 4, the viscous fluid damper 3 is mainly composed of a sealed cylinder 7, a guide rod 8 that can slide up and down through the cylinder 7, and a piston 9 fixed on the guide rod 8. The piston 9 A damping channel 11 with a constant radius is provided on the upper surface, and the damping rod 10 is arranged in the cylinder 7 and passes through the damping channel 11 on the piston 9. When the piston 9 moves to different displacements, the corresponding damping The radii of the long rods 10 are not equal, so that...

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Abstract

The invention discloses a suspended frequency modulation mass damper, comprising a spring, a mass block and a viscous fluid damper; the mass block is suspended on an upper suspension girder or roof plate through the spring and the viscous fluid damper; the viscous fluid damper mainly comprises a sealed cylinder, a guide rod passing through the cylinder and capable of sliding up and down and a piston fixed on the guide rod; and the damping coefficient of the viscous fluid damper is changed along with the change of the displacement of the viscous fluid damper. The device capable of controlling vertical vibration has simple structure, small occupying area and high space utilization ratio.

Description

technical field [0001] The invention relates to a vibration damping device for vertical vibration response of long-span bridges and buildings (roofs), in particular to a suspended mass damper. Background technique [0002] With the needs of economic and urban construction development, the span and scale of buildings and bridges are getting larger and larger, of which sports, conference and exhibition and airport buildings and long-span bridges are representative. In recent years, great changes have taken place in architectural design and construction technology. The advancement of calculation methods and the use of lightweight and high-strength materials have made the structural system lighter, softer, and less damped. The design trend is to use the structural system with the smallest weight. Spanning a long span reduces the stiffness and damping of the structure, making the natural vibration frequency of long-span bridges and buildings (roofs) relatively close to the freque...

Claims

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Application Information

Patent Timeline
18 Aug 2010
Publication
CN101806104A
IPC
E04B1/98
Inventors
张志强; 李爱群