【作者】 王灵敏；

【导师】 宋希庚； 薛冬新；

【作者基本信息】 大连理工大学 ， 动力机械及工程， 2002， 硕士

【摘要】 振动测试分析技术作为解决工程振动问题的一种手段，早已被人们所利用。在近二十多年来，随着科技与生产的发展，振动测试与分析无论在理论上还是在技术和应用上都发生了令人瞩目的深刻变化。进入70年代以后，微型计算机的普遍推广应用，特别是FFT算法的引入，使得振动测试分析技术进入了新时期。 研制的计算机状态监测与故障诊断系统适用于各类大型汽轮发电机组、离心压缩机组等回转机械。设备状态监测与故障诊断是通过掌握设备过去和现在运行中或基本不拆卸的情况下的状态量，判断有关异常或故障的原因及预测对将来的影响，从而找出必要对策的技术。本系统是WINDOWS界面下的状态监测与故障诊断系统，它在数据采集卡PCL 1800的支持下，可以完成振动信号的数据采集以及功率谱、倒谱、谱阵和相干函数分析等功能。能将数据转化成各种对应的图形。本文详细介绍了该系统的组成模块及其功能实现。它可以广泛应用于电力、石化、冶金、汽车和造船等国民经济重要部门，做振动的测试和分析。可以代替专用信号处理机的工作。 应用软件开发工具选择Visual C++作为开发工具，在WINDOWS系统下运行。软件界面的设计以满足大多数用户为主，力求直观通俗，一目了然。更多还原

【Abstract】 As a means of solving engineering vibration problems, vibration testing and analysis technique has been used for many years. In the past twenty years, with the development of science and technology, vibration testing and analysis technique has changed a lot not only in theory but also in application. After coming into 70’s, microcomputers have been used more and more popular, especially FFT algorithm introduced, which made vibration testing and analysis technique enter a new stage.The condition monitoring and fault diagnosis system for larger rotary machinery is applied to all kinds of larger rotary machinery such as Stirling engine. The condition monitoring and fault diagnosis system can give the causes of all faults and abnormalities and also gives the opposite measures by getting the condition parameters of machineries in the past or nowadays. The system is vibration signal processing system in windows. It has the functions of collecting vibration signal power spectruiru cepstrum and transfer function analysis and so on with the PCL₁800. At the same time, the system can convert the data into the corresponding graph. This book introduces detailedly this system’s components and their functions. It can be used largely in the fields of electrical system, oil and chemistry company, refine industry, automobile and the ship manufacturing etc for testing and analyzing of the vibration signals.This system software is programmed with the advanced programming language Visual C++ and runs in the window system. The design of the software interface can meet the demands of most users. The interface is friendly and popular common.更多还原