Array-type novel high-performance eddy current damper

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...

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 metal plate, which affects the ratio of the damping force to the mass of the damper. In order to achieve The damping effect, its size is very large, resulting in heavy weight, which greatly affects the application of eddy current dampers in aerospace

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