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Dynamic balancing method through electromagnetic controlling for magnetorheological fluid

A magnetorheological fluid and electromagnetic control technology, applied in the field of online dynamic balance, electromagnetic control magnetorheological fluid dynamic balance, can solve problems such as unfavorable manufacturing and installation, complex design, etc.

Inactive Publication Date: 2015-10-28
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an electromagnetically controlled magneto-rheological fluid dynamic balance method, which solves the defects or insufficiencies of the previous mechanical dynamic balance methods that are complicated in design and unfavorable for manufacturing and installation

Method used

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  • Dynamic balancing method through electromagnetic controlling for magnetorheological fluid
  • Dynamic balancing method through electromagnetic controlling for magnetorheological fluid

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Experimental program
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Embodiment Construction

[0018] Below in conjunction with accompanying drawing, verification step of the present invention is described in further detail:

[0019] Such as figure 1 As shown, the current adjustment is used to control the magnetic induction intensity generated by the electromagnet. When there is no external magnetic field, the magnetorheological fluid contained in the designed verification test piece is in a stable state. In the controllable magnetic field generated, the magnetic The rheological fluid will be deformed and displaced. After the displacement, the mass distribution of the magnetorheological fluid will change. By controlling the change of the mass distribution of the magnetorheological fluid as the compensation mass, the online dynamic balance of the rotating machinery will be realized.

[0020] Such as figure 2 As shown, it includes the balance head main body plate 1, which is used to hold the magnetorheological fluid and insert three electromagnets 2 at the same time, th...

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Abstract

The invention discloses a dynamic balancing method through electromagnetic controlling for a magnetorheological fluid, wherein magnetic induction strength which is generated by an electromagnet is changed through adjusting a current. When no external magnetic field exists, the magnetorheological fluid which is contained in an electromagnetic controlled magnetorheological fluid dynamic balancing head is in a stable state. After a controllable magnetic field is generated, deformation and displacement of the magnetorheological fluid occur, and mass distribution of the magnetorheological fluid is changed. The mass distribution change of the magnetorheological fluid is used as a compensating mass for realizing online dynamic balancing of a rotary machine. The dynamic balancing method through electromagnetic controlling for the magnetorheological fluid can realize a dynamic balancing movement on the rotary machine without stoppage, thereby reducing mechanical vibration.

Description

technical field [0001] The invention belongs to the field of dynamic balance of rotating machinery rotors, and in particular relates to an online dynamic balance method—a method for electromagnetically controlled magnetorheological fluid dynamic balance. The online dynamic balancing method involved in the invention can change the mass distribution of the magneto-rheological fluid by adjusting the magnitude of the current to finally realize the dynamic balance of the rotor without stopping, and solve the vibration problem caused by the unbalance of the rotor during operation. Background technique [0002] As a key and basic technology of rotating machinery, dynamic balancing technology has been closely watched and valued by industry and academia. A large number of statistical data show that the unbalance of the rotor is usually the main cause of the vibration of the rotating machine. Unbalance will cause the deflection of the rotor and the change of internal stress, which wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M1/36
Inventor 张西宁王奔吴婷婷
Owner XI AN JIAOTONG UNIV