Design method of a brushless DC motor vibration detection system

Abstract

The present invention discloses a design of a vibration detection system of a brushless direct current motor. The design of the vibration detection system of the brushless direct current motor comprises a test bed module, a signal control module, a data acquisition module, a supervisory control computer module and a vibration signal test module. The method flow comprises the following steps: (1) the design of installation of the clamp on the brushless direct current motor and a fixation method of the brushless direct current motor; (2) stress control and quantification input of the brushless direct current motor; (3) selection of test points; (4) measurement and monitoring of the system; and (5) the design of an acquisition system of vibration degradation signals. According to the invention, the acquisition of vibration signals in the running condition of a brushless direct current motor with oars may be realized to obtain degeneration trends of performance parameters of the brushless direct current motor in the degenerative process, and the degeneration trends of performance parameters may be used in the fault detection and life prediction technologies of brushless direct current motors of products such as a multi-rotor unmanned plane, a washing machine and the like.

Description

technical field [0001] The invention is a design method of a brushless DC motor vibration detection system. In order to provide an efficient and reliable method for the acquisition of vibration signal characteristic parameters of the brushless DC motor through the design results, it belongs to the field of methods and experiments. Background technique [0002] During the long-term operation of the brushless DC motor, there will be performance degradation, and its structure and components will gradually deteriorate, gradually losing its original performance and function, the shaft will wear out, and some abnormal states will be exposed, which will bring Come security issues. In order to avoid safety accidents during the operation of the product, it is necessary to repair or replace the product before the symptoms of the accident appear. Currently, there is no specific method to guide maintenance or replacement decisions during BLDC motor operation. This makes the maintenan...

AI Technical Summary

Problems solved by technology

This makes the maintenance or replacement decision of the brushless DC motor extremely blind. Not only can it not guarantee the safety of the product during operation, but also premature replacement and scrapping will cause a great waste of resources.

[0003] On the other hand, when the brushless DC motor is abnormal or malfunctions, the vibration during operation will be aggravated

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