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Fluid damper

A technology of fluid damper and magnetorheological fluid, which is applied in the direction of liquid shock absorber, shock absorber, shock absorber, etc., to achieve the effects of reducing energy consumption, stable and reliable work, and easy manufacture

Inactive Publication Date: 2020-09-04
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The shear thickening fluid damper does not require the same current source as the electric / magneto-rheological damper, so the shear thickening damper has higher stability, but the shear thickening fluid damper can only depend on the input shear The shear rate is used to adjust and control the stiffness of the damper

Method used

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Examples

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] Such as figure 1 As shown, the fluid damper of this embodiment includes a piston 1 and a cylinder body 2 with a cylindrical inner cavity 20, the cylindrical inner cavity 20 is filled with magnetorheological fluid, the piston 1 is installed in the cylindrical inner cavity 20 and There is a gap between the inner wall of the cylinder body 2, and the two ends of the piston 1 are provided with a piston rod 10 that passes through the cylinder wall of the cylinder body 2 and extends to the outside of the cylinder body 2. An excitation coil 3 is installed inside the piston 1, and the excitation coil 3 When electrified, a magnetic field is generated to change the viscosity and flow resistance of the magnetorheological fluid. The movement of the piston 1 in the cylinder body 2 can push the magneto-rheological fluid to flow through the g...

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Abstract

The invention discloses a fluid damper. The fluid damper comprises a piston and a cylinder body with a cylindrical inner cavity. The cylindrical inner cavity is filled with a magnetorheological fluid.The piston is mounted in the cylindrical inner cavity. A gap is reserved between the piston and the inner wall of the cylinder body. Two ends of the piston are provided with a piston rod passing through the cylinder wall of the cylinder body and extending out of the cylinder body. An excitation coil is mounted in the piston. The fluid damper has the advantages of being simple and compact in structure, low in cost, easy to manufacture, stable and reliable in work, low in energy consumption, good in damping effect and the like.

Description

technical field [0001] The invention relates to the technical field of damping equipment, in particular to a fluid damper. Background technique [0002] Vibration phenomenon is ubiquitous in life. When it brings convenience to people's life, it also brings many hazards to people's life. The slightest is to affect the accuracy of instruments and the comfort of passengers; the most serious is to endanger human health, damage mechanical equipment and civil engineering structure. Therefore, people use the damper as an energy dissipation device to absorb vibration energy and reduce equipment vibration. The damping value of traditional dampers is generally a constant value, and it is difficult to solve the vibration reduction problem that requires variable damping. Therefore, many researchers try to design variable damper structures, such as variable damping holes and semi-active friction devices, etc., but this will lead to a more complicated structure of the damper. [0003] ...

Claims

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Application Information

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IPC IPC(8): F16F9/19F16F9/53F16F9/36F16F9/32
CPCF16F9/19F16F9/535F16F9/36F16F9/3214F16F9/3221F16F9/3242F16F9/3207
Inventor 黄向明杨三锋明阳
Owner HUNAN UNIV