Magnetic suspension type multi-directional collision tuning mass damper

Abstract

The invention discloses a magnetic suspension type multi-directional collision tuning mass damper. According to the technical key points, the device comprises a mass block, a limiting device, springs,a magnetic suspension system and an energy dissipation and vibration damping inner wall; the magnetic suspension system consists of an upper magnetic body and a lower magnetic body, the lower magnetic body is fixedly connected with a damper base, and the upper magnetic body is connected with the mass block to form a whole; the springs are uniformly arranged on the mass block in the radial direction, the inner ends of the springs is connected with the central convex block on the mass block, and the outer ends of the springs is connected with the energy dissipation and vibration damping inner wall; the lower surface of the upper magnetic body is opposite to the upper surface of the lower magnetic body and the magnetisms are the same; the limiting device includes a plurality of columnar bodies which are uniformly arranged on the lower surface of the upper cover of the damper in the radial direction, and the lower end parts of the columnar bodies is contacted with the upper surface of themass block. According to the invention, the low-frequency vibration damping is achieved, an energy consumption damping material is added, the vibration damping control effect is better, the application range is wider, and the environment is not polluted.

Description

technical field [0001] The invention belongs to the technical field of structural vibration control, and in particular relates to a magnetically suspended multidirectional collision tuned mass damper. Background technique [0002] As a rapidly developing renewable energy, wind energy has attracted people's close attention. Its total reserves are huge and widely distributed. As an important energy source that can be developed and utilized, under certain technical conditions, wind power can generate electricity. The machine converts wind energy into electricity. The working principle of a wind turbine is relatively simple. The wind rotor rotates under the action of wind force, converting the kinetic energy of the wind into the mechanical energy of the wind rotor shaft, and the generator rotates to generate electricity under the drive of the wind rotor shaft. In a broad sense, wind energy is also solar energy, so it can also be said that a wind generator is a thermal energy ut...

AI Technical Summary

Problems solved by technology

From the analysis of the above literature, tuned mass dampers generally have a certain friction force, which cannot guarantee the vibration reduction frequency in all directions. More importantly, in the current control technology, most tuned mass damper devices are not sensitive to small vibrations. Difficult to achieve low frequency vibration damping performance

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