【作者】 魏立东；

【导师】 宋希庚； 刘宝林；

【作者基本信息】 大连理工大学 ， 动力机械与工程， 2002， 硕士

【摘要】 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FFT、功率谱、倒谱、谱阵和相干函数分析等时频分析、趋势分析、轴心轨迹监测、故障诊断等功能。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，进行机组状态参数的监测分析和故障诊断。可以代替专用信号处理机的工作。 本文讨论了网络通信技术在大型旋转机械在线监测及故障诊断系统中的应用。本系统在Windows界面下，运用Visual C++中的WinSock技术，采用多线程并发TCP服务器结构模式(客户机/服务器模式)，实现了局域网内旋转机械振动信号的共享，达到了分布式诊断模式(DMDS)的设计要求。 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。 该系统已经成功地应用于中国石油天然气股份有限公司锦西石化分公司。更多还原

【Abstract】 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 signals > power spectrum > 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.The application of network communications technology in On-line Monitoring and Fault Diagnosis System of Large Unit Rotary Machine is studied in this paper. Under the interface of Windows, using technology of Visual C++ and multi-thread concurrent TCP server （Client/Server architecture）, the monitored signals of rotary machine have been shared in local area network （LAN）, and the requirement of Distributed Monitoring and Diagnosis System （DMDS） has been realized.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