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Controllable damper with viscosity

A damper and viscous technology, which is applied in the field of controllable viscous dampers, can solve the problems of the damper’s energy dissipation capacity decline, the small hole diameter of the piston cannot be adjusted, and the viscous damper is difficult to process and manufacture, and achieves high sensitivity High, easy to adjust, simple and convenient to make and install

Inactive Publication Date: 2005-03-16
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing viscous damper has the following disadvantages: one is that the processing of the viscous damper is difficult, and the viscous fluid is prone to leakage; the other is that the aperture of the small hole on the piston cannot be adjusted. After being affected by temperature, the energy dissipation capacity of the damper also decreases
The third is that if there is no assistance from external energy sources, the vibration source signal cannot be used to achieve feedback control

Method used

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  • Controllable damper with viscosity
  • Controllable damper with viscosity
  • Controllable damper with viscosity

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Experimental program
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Embodiment Construction

[0018] Figure 1-Figure 4 This is the specific structure diagram of this embodiment. The controllable viscous damper is composed of a cylinder body 1, a piston rod 2, a nut 3, a cover plate 4, and piston blades 5 and 6. The blades 5 and 6 are used in groups and multiple pieces are stacked, and the nuts 3 and cover plates 4 at the left and right ends are fixed on the piston rod 2. Among them, a set of blades composed of blades 6 and the cylinder body do not rotate relative to each other. A set of blades and the cylinder composed of blades 5 can be adjusted by a mechanism to generate relative rotation. The whole piston composed of two blade groups can reciprocate along the axial direction in the cylinder. The two enclosed cavities formed by the piston and the cylinder are filled with viscous liquid.

[0019] The above-mentioned piston rod 2 is composed of a hollow rod 201 and a solid rod 202. Wherein, the hollow rod 201 has two opposite longitudinal grooves 204, and the solid rod 20...

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Abstract

This invention is related to a sticky and damper whose damping power can be adjusted and can use signal of vibrating resource as feedback control. This pamper includes: the chamber with cylindrical lumen, piston pole, at least two blades, the chamber is divided into two hermetic lumens by the piston, in the lumen is full of glutinous fluid. Its specialty: the blade is radial flat wafer with screw groove; the two sides of the blade are alternatively added on the piston pole to form the two sets of blades, the one set is un-rotating blade, and the other is rotating. The damping power of this invention can be easily adjusted, and can use vibrating resource as feedback control. It has strong points of high sensitivity, easy facture and equipment and durability.

Description

(1) Technical field [0001] The invention belongs to the technical field of dampers, and particularly relates to a controllable viscous damper whose damping force can be adjusted and a vibration source signal can be used for feedback control. (2) Background technology [0002] Whether it is mechanical equipment or in a building or offshore platform structure, excessive vibration will either cause the loss of equipment function or damage the structure. Therefore, vibration control is very important in mechanical and structural design. This is especially true in the dynamic design and reliability design of machinery and structures. Vibration control mainly applies a control mechanism (system) to the structure. The control mechanism and the structure work together to reduce the mutual transmission of vibration energy, avoid the coupling amplification of vibration and the generation of resonance, and effectively prevent the damage of mechanical equipment and structures. Mechanical equ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/10
Inventor 赵东马汝建蔡冬梅李桂喜屈召富
Owner UNIV OF JINAN