A Dynamic Balancing Method for High Speed ​​Rotor

A high-speed rotor and rotor technology, applied in static/dynamic balance testing, machine/structural component testing, measuring devices, etc., can solve problems such as low precision of unbalanced vibration extraction and high cost of dynamic balancing operations

Active Publication Date: 2016-07-20
XIDIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a dynamic balancing method for high-speed rotors, which overcomes the problems of high cost of dynamic balancing operation and low precision of unbalanced vibration extraction in the existing dynamic balancing technology

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  • A Dynamic Balancing Method for High Speed ​​Rotor
  • A Dynamic Balancing Method for High Speed ​​Rotor
  • A Dynamic Balancing Method for High Speed ​​Rotor

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Experimental program
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Embodiment 1

[0047] This embodiment mainly verifies the validity and accuracy of the present invention.

[0048] 1. Composition of dynamic balance experiment system

[0049] Such as figure 1 As shown, the unbalanced fault is simulated by the rotor experimental system to study the effectiveness of the dynamic balancing method of the present invention. The hardware part of the system mainly includes several major modules such as BentlyRK4 rotor test bench, eddy current displacement sensor 2, signal conditioning module, NI data acquisition module, and industrial computer. Among them, the rotor test bench is composed of three parts: the rotor connected to the motor 4, the bearing 5, and the mass disc 3. The eddy current displacement sensor 2 can test the radial vibration information of the rotor in real time, and the data acquisition module converts the analog signal representing the displacement information Convert it into a digital signal, and send it to an industrial computer for unbalanc...

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Abstract

The invention belongs to the technical field of fault diagnosis and control of rotating equipment, and in particular relates to a dynamic balancing method for a high-speed rotor. On the basis of obtaining rotor vibration information, the method performs both high and low speed vibration data post-processing. The same-scale reduction eliminates the interference of non-unbalanced factors such as rotor measurement cross-section profile errors, phase identification signs, electromagnetic interference, and bending, and realizes the purification of unbalanced vibrations. Compared with the traditional dynamic balance method, this method ensures the accurate acquisition of unbalanced vibration data, and has a significant effect on improving the dynamic balance accuracy, and this method does not require a phase sensor, which reduces the system's dependence on the installation space and reduces the complexity of the system In addition, the method has a wide range of applications, a simple process, and is conducive to the realization of computer control, which has good practical application value.

Description

technical field [0001] The invention belongs to the technical field of fault diagnosis and control of rotating equipment, and in particular relates to a dynamic balancing method for a high-speed rotor. Background technique [0002] The rotor is the core component of rotating equipment. Due to factors such as manufacturing and installation errors and uneven materials, the center of mass of the rotor will more or less deviate from its geometric center, that is, there is an imbalance. When the rotor rotates at high speed, the imbalance will cause vibration. If the vibration exceeds a certain limit, it will not only affect the performance of the rotating equipment, but also cause damage to the components of the rotor itself. Therefore, how to control the vibration caused by rotor imbalance is a key issue in the use of rotating equipment. [0003] Dynamic balance is based on accurate rotor vibration signals, but the vibration signals collected in engineering practice are often a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M1/16
Inventor 章云黄新波邵明平邵敏
Owner XIDIAN UNIV
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