脂润滑球轴承噪声寿命试验技术研究

发布时间：2018-03-25 11:12

本文选题：噪声寿命　切入点：LabVIEW　出处：《五邑大学》2011年硕士论文

【摘要】：轴承的噪声寿命是一个表征轴承质量的重要指标,它与产品设计、材料、工艺以及加工过程中的质量控制手段等诸多因素有关,又是一个综合性指标。随着人们对家电产品性能要求的提高,对轴承的质量要求也越来越高,所以提供一种评估家电轴承噪声寿命的试验方法显得非常重要。本文以江门机械设备有限公司轴承噪声寿命试验机的设计为背景,考虑到试验机的自动化程度、试验精度和系统稳定性的要求,给出了以LabVIEW软件为主要开发平台的轴承噪声寿命试验机监控系统的设计方案。主要研究内容为：试验机机械部分设计：传动系统设计、电气硬件系统设计；主电路的设计和测控部分的设计；振动信号的分析和处理等三大部分。整个系统的关键点是转速的控制、温度的控制以及对采集信号的分析处理方法。转速的控制主要是通过变频器和LabVIEW的通讯来实现速度的实时控制。试验中对轴承加热的温度控制采用PID无极调温的方法实现。对波形的分析与处理主要是在时域、频域以及时频域的分析方法,包括调用Matlab进行混合编程实现经验模态分解的轴承故障分析方法。该测试系统以LabVIEW为平台开发的模块化测试系统实现了监测、控制、故障诊断、管理等功能。并实现了自动化,因此该试验平台的开发对工业中评估轴承的噪声寿命具有重大意义。
[Abstract]:Bearing noise life is an important indicator of bearing quality. It is related to many factors such as product design, material, process and quality control in the process of processing. It is also a comprehensive index. With the improvement of the performance of household electrical appliances, the quality of bearings is becoming higher and higher, so it is very important to provide a test method to evaluate the noise life of household electrical appliances bearings. Based on the design of bearing noise life testing machine of Jiangmen Mechanical equipment Co., Ltd., considering the requirements of automation, test precision and system stability of the testing machine, The design scheme of the monitoring system of bearing noise life testing machine based on LabVIEW software is presented. The main research contents are as follows: mechanical part design, transmission system design, electrical hardware system design; Main circuit design and measurement and control part design; vibration signal analysis and processing three parts. The key point of the whole system is the speed control, The control of temperature and the analysis and processing of the collected signal. The speed control is mainly realized by the communication between the frequency converter and LabVIEW. In the experiment, the temperature control of bearing heating is controlled by PID stepless temperature control. The waveform analysis and processing are mainly in time domain. The analysis method in frequency domain is in time frequency domain, including the method of bearing fault analysis based on mixed programming by calling Matlab to realize empirical mode decomposition (EMD). The modular test system developed on the platform of LabVIEW realizes the functions of monitoring, control, fault diagnosis and management. Therefore, the development of the test platform is of great significance for evaluating the noise life of bearings in industry.
【学位授予单位】：五邑大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH133.3

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