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Viscous damper to passively adjust high energy consuming clearances

A viscous damper and high energy consumption technology, which is applied in the direction of shock absorbers, shock absorbers, liquid shock absorbers, etc., can solve the problem of excessive changes in damping force, large stress on connected components, low energy consumption efficiency, etc. problem, to achieve the effect of accelerating heat conduction and dissipation, improving efficiency and ensuring safety

Inactive Publication Date: 2012-07-25
BEIJING UNIV OF TECH
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Problems solved by technology

[0005] In order to solve the problem that the damping force of the traditional viscous damper changes too much under complex external excitations, especially impact loads, resulting in excessive stress on the connected components and low energy consumption efficiency, the present invention proposes a passive adjustment of the high energy consumption gap Viscous damper, by changing the form of the damping gap, the damper can provide a speed index below 0.3, and at the same time, the damper has stable damping force in complex working environments and can resist large impact loads

Method used

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  • Viscous damper to passively adjust high energy consuming clearances
  • Viscous damper to passively adjust high energy consuming clearances
  • Viscous damper to passively adjust high energy consuming clearances

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Embodiment Construction

[0030] For its specific structure, see Figure 1-9 , a high energy consumption gap passively adjustable viscous damper of the present invention, comprising a piston rod 1, a cylinder head 2, a cylinder barrel 3, a piston head 4, the cylinder barrel 3 and the cylinder heads 2 on both sides form a closed cylinder body, The piston rod 1 extends into the cylinder body through the cylinder head 2 on both sides. The piston rod 1 in the cylinder body is provided with a piston head 4, and a main fluid channel 23 is formed between the piston head 4 and the cylinder barrel 3. The piston head 4 A soft metal annular valve 7 is arranged on the periphery of the middle part, and a damping gap 24 is formed between the soft metal annular valve 7 and the cylinder 3. A guide disc 5 is arranged on both sides of the piston head 4, and the edge of the guide disc 5 is inclined outward. Buffer grooves 11 are provided on both sides of the cylinder 3 . Among them, the clearance of the main fluid chann...

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Abstract

The invention relates to a viscous damper to passively adjust high energy consuming clearances, belonging to the technical field of engineering vibration reduction. The viscous damper comprises a piston rod, a cylinder head, a cylinder barrel and a piston head; a damping gap is formed between the piston head and the cylinder barrel to form a main fluid channel; an annular soft metal valve is arranged on the piston head, the gap between the annular soft metal valve and the cylinder barrel is formed to be a smallest gap through which the fluid passes; both sides of the piston head are provided with guide round disks. The viscous damper has the characteristics of stable damping force under the complex working condition, resistance of big impact load, simple structure and the like.

Description

technical field [0001] The invention relates to a damper, in particular to a high-energy-consuming gap passively adjustable viscous damper, which belongs to the technical field of engineering vibration reduction. Background technique [0002] Structural energy dissipation and vibration reduction technology is a new earthquake and disaster prevention technology. In the structure using energy dissipation and vibration reduction technology, some non-load-bearing members of the structure are designed as special elements with large energy dissipation capacity - dampers. During the earthquake process, large damping is generated, the seismic energy of the structure is concentratedly dissipated, and the vibration response of the structure is quickly attenuated, thereby avoiding or reducing the damage of the main structure. The realization of energy-dissipating vibration-absorbing structures mainly depends on the development of dampers with simple structure and superior performance....

Claims

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Application Information

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IPC IPC(8): F16F9/19F16F9/32F16F9/34F16F9/36E04B1/98
Inventor 闫维明王维凝李晰王瑾
Owner BEIJING UNIV OF TECH
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