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Electromagnetic Active Control Device for Shaft Transverse Vibration

A lateral vibration, active control technology, applied in the direction of propulsion transmission, non-rotation vibration suppression, transportation and packaging, etc., can solve the problem of no attempt to actively control the lateral vibration of the shaft system.

Active Publication Date: 2021-07-30
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned methods to reduce the rotary vibration of the shaft system are to improve the process or passive control, and none of them try to study the active control of the lateral vibration of the shaft system

Method used

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  • Electromagnetic Active Control Device for Shaft Transverse Vibration
  • Electromagnetic Active Control Device for Shaft Transverse Vibration
  • Electromagnetic Active Control Device for Shaft Transverse Vibration

Examples

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] Such as Figure 1 to Figure 5 As shown, in Embodiment 1 and Embodiment 2, the electromagnetic active control device for lateral vibration of the shaft system includes a vertical unit and a horizontal unit; the vertical unit is vertically arranged, including a mover and fixed on the outer ring of the bearing in the shaft system The base 9, the mover includes a non-magnetic main rod 2 and permanent magnets 15 and magnetizers 16 fixed in the middle of the main rod 2 and arranged alternately. The upper end of the main rod 2 is connected with the balance spring 1, and the upper part is connected with the fixed guide Part 3 is sliding fit (the smoothness and material stiffness should be increased as much as possible when the sliding fit is made), the lower part is covered with a compression spring 12, and the lower end is sliding fit with the base 9 (t...

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PUM

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Abstract

The invention discloses an electromagnetic active control device for lateral vibration of a shaft system, wherein the vertical unit includes a mover and a base fixed on the outer ring of a bearing in the shaft system, and the mover includes a main rod and a permanent shaft fixed in the middle of the main rod. Magnets and magnetizers, the upper end of the main rod is connected with the balance spring, the upper part is slidingly matched with the guide, the lower part is covered with a compression spring, and the lower end is slidingly fitted with the base. The compression spring is placed on the base and the two ends are not fixed. In the initial state, the balance spring The mover is in contact with the upper end of the compression spring without exerting force. The tension springs are symmetrically arranged on both sides of the main rod, and the connecting rod is arranged on the base. Space, the outer ring of the magnetizer is equipped with a corresponding coil, and the coil is set in a fixed magnetizer. When the mover is down, the compression spring is pressed to output pressure to the base, and the extension spring is not pressed when the mover moves upward. When the mover is up, the compression spring The free, tension spring is pulled to output the pulling force to the base. The device can actively control the lateral vibration of the shafting.

Description

technical field [0001] The invention belongs to the field of vibration and noise vibration control, in particular to an electromagnetic active control device for lateral vibration of a shaft system. Background technique [0002] Shafting is the main equipment for power transmission. It effectively connects the main engine and executive parts (such as oars) and forms a complete power system to make the equipment (such as ships) run normally. When the main force transmission of the shaft system is uneven, the torque and installation cannot be centered, and the material processing is inaccurate, etc., the shaft system will be in an unbalanced state and lateral vibration will occur (in addition, the propeller in the uneven flow field work, it will cause disturbance at the tail of the ship, causing resonance and local vibration of the ship). Severe lateral vibration may cause excessive bending stress of the shafting, causing it to break and endangering human life. [0003] At p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F15/03F16F15/04B63H23/00
CPCB63H23/00F16F15/03F16F15/04
Inventor 胡甫才许天乐章林柯张冠军张聪王利
Owner WUHAN UNIV OF TECH
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