Array-type novel high-performance eddy current damper

An eddy current damper, eddy current damping technology, applied in the direction of shock absorbers, shock absorbers, springs/shock absorbers, etc. The application of eddy current damper and other issues can achieve the effect of saving resources, compact structure and simple structure

Inactive Publication Date: 2012-11-28
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure of this type of eddy current damper is relatively simple, the size of the damping coefficient cannot be adjusted conveniently, and the utilization rate of the magnetic field is not high, resulting in a small eddy current in the meta

Method used

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  • Array-type novel high-performance eddy current damper
  • Array-type novel high-performance eddy current damper
  • Array-type novel high-performance eddy current damper

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Embodiment Construction

[0040] In the following description, the present invention will be described in detail based on exemplary embodiments.

[0041] Note that the same reference numerals are used for the same elements and descriptions are not repeated.

[0042] Such as figure 1 As shown, two rows of permanent magnets and soft iron are arranged alternately, and the direction of the magnetic field of the permanent magnets changes alternately, so a uniform and constant magnetic field with alternating directions is formed in the gap between the two. When the vibration is input, the metal plate unit inside the damper is driven to cut the magnetic field generated by the permanent magnet, so an eddy current is generated on the surface of the metal plate unit.

[0043] Such as figure 2 As shown, when the magnetic field where the conductor is located changes alternately in its moving direction, a corresponding number of eddy currents will be formed inside it. Compared with the structural scheme with a s...

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Abstract

An array-type novel high-performance eddy current damper consists of an electrical eddy current energy consuming unit, an elastic buffer unit, an electromagnetic shielding component, an axial displacement guiding unit and a supporting component, wherein the elastic buffer unit, the electrical eddy current energy consuming unit and the axial displacement guiding unit are sequentially inlaid on the supporting component from the bottom up; the bottom of the electrical eddy current energy consuming unit serving as a core component of the damper is connected with the top of the elastic buffer unit; the top of the electrical eddy current energy consuming unit is connected with the bottom of the axial displacement guiding unit; a flexible spherical hinged support is arranged at the top end of the damper and is connected with the axial displacement guiding unit and an external load to output a damping force; and a flexible spherical hinged support is arranged at the bottom end of the damper and is used for fixing the damper. The array-type novel high-performance eddy current damper has the advantages of adjustable damping coefficient, high ratio of the damping force to the integral mass of the damper, compact structure, high reliability and the like; and in the technical field of structural vibration control, the array-type novel high-performance eddy current damper has relatively high practical value and wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of structural vibration control, and in particular relates to an array type novel high-performance eddy current damper, which can suppress the axial vibration of the structure. Background technique [0002] Vibration problems are common in many engineering fields such as aviation, aerospace, machinery, civil engineering, and the environment, which can cause noise, facility fatigue, and other hazards. Effectively controlling vibration and reducing the harm caused by vibration have always been the research focus of engineers and technicians. Research on structural vibration control began in mechanical engineering as early as the 20th century, and then developed into aerospace engineering. [0003] The spacecraft operates in orbit for a long time, the working environment is harsh, and maintenance is inconvenient, which puts forward strict requirements on the performance and service life of the damper. In view...

Claims

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Application Information

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IPC IPC(8): F16F13/00F16F6/00
Inventor 何田肖登红刘献栋单颖春
Owner BEIHANG UNIV
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