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Life greased ball bearing noise test technique

Author: ZhangYongXiao
Tutor: KongFanGuo
School: Wuyi University
Course: Mechanical Manufacturing and Automation
Keywords: noise life LabVIEW Tester Fault diagnosis Signal analysis
CLC: TH133.3
Type: Master's thesis
Year: 2011
Downloads: 38
Quote: 0
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Abstract


Bearing noise life is an important indicator of representing its quality. It is related with the materials, processing technology and quality control methods, and many other factors, and also a comprehensive indicator. With the improvement of home appliances’performance which people require, the requirements of bearing quality is getting high and high, so it is very important to provide a test method of bearing noise life assessment.In this paper, take the design of bearing noise life testing machine, jiangmen mach- inery and equipment Co., Ltd as the background. Given the automation of the testing machine, testaccuracy and the requriement of system stability, it provides life test bearing noise monitoring and control system design which bases on the Labview. There are more than three parts in this paper such as the design of tester mechanical parts, the design of transmission system and electric hardware system, the design of main circuit and the measurement and control part, the vibration signal analysis and processing.The key point of the whole system is speed control, temperature control and analysis of the collected signal processing methods. Speed control and LabVIEW mainly through the drive speed of communication to achieve real-time control. Test the temperature of the bearing heating thermostat control methods used to achieve PID Promise. Analysis and treatment of the waveform mainly in the time domain, frequency domain and time-frequency domain analysis methods, including calling Matlab programming experience in mixed mode decomposition analysis of bearing failure.This test system for the platform development in LabVIEW modular test system realizes the monitoring, control, fault diagnosis and management, and other functions. And it realized automation. It is of great significance to assess bearing noise life in industry.

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CLC: > Industrial Technology > Machinery and Instrument Industry > Mechanical parts and gear > Moving parts > Bearing
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