【作者】 张大明；

【导师】 秦树人；

【作者基本信息】 重庆大学 ， 机械电子工程， 2005， 硕士

【摘要】 轴心轨迹作为旋转机械的一个重要状态特征参量,形象直观地反应了转子的实际运动状况,包含了丰富的旋转机械故障信息。论文介绍了轴心轨迹测试的现状,轴心轨迹测试的原理和分析方法。介绍了测试仪器的发展历程,即从传统的硬件化仪器经过虚拟仪器再到今天的智能控件化虚拟仪器。分析了智能控件化虚拟仪器的特点,并与以往的传统的硬件化仪器做了比较。智能控件化虚拟仪器是测试仪器发展的一个全新模式。 论文从功能赋予、测试融合和虚拟仪器的积木式拼搭三部分介绍了智能控件化虚拟仪器的基本概念。介绍了智能虚拟控件的形成原理和设计方法,包括从非智能虚拟控件的模型要素到智能虚拟控件的形成过程。最后介绍了框架协议集成开发系统和智能控件化虚拟仪器的形成过程,论述了智能控件化虚拟仪器的形成原理。 论文介绍了转子振动的基本特性,正常情况下轴心轨迹的形状和在故障状态下轴心轨迹和旋转机械故障的对应关系。研究了轴心轨迹分析的信号处理方法,包括转子两路振动信号的频谱分析、轴心轨迹的提纯、轴心轨迹的分量分解和分量合成及轴心轨迹的一些特征值显示,完成了轴心轨迹分析的功能建模。最后对这些功能进行了程序设计,并提供了相应的功能接口函数。 在VMIDS开发系统中拼搭组装成了可供实际应用的智能控件化轴心轨迹分析仪。从轴心轨迹分析仪的硬件组成结构和系统软件开发环境两方面对轴心轨迹分析仪进行了总体设计。从仪器拼搭场、仪器功能组库、虚拟控件三部分简单介绍了VMIDS开发系统的组成要素。从控件的创建,属性修改,功能赋予等步骤拼搭出完整的可供实际应用的智能控件化轴心轨迹分析仪。可以实时显示轴心轨迹和转子的相互垂直的两路振动信号,并具有报警、特征值显示、数据存储和回放等功能。最后给出了智能控件化轴心轨迹分析仪的应用实例。更多还原

【Abstract】 As an important characteristic state parameter, the orbit of shaft centerline reflects the rotor’s running condition intuitively and contains abundant information about rotatory machine fault. This paper introduces the current situation of shaft centerline orbit test, the principle of the test and analyzing method of the orbit. The paper also introduces the development history of virtual instrument—from traditional instrument based on hardware to virtual instrument and at last to current virtual instrument based on intelligent virtual control. It analyzes the features of virtual instruments based on controls and compares them with traditional hardware-based instruments. The virtual instrument based on intelligent virtual control is a completely new mode of the development of measuring instruments.First, the paper introduces the basic concept of virtual instrument based on intelligent virtual control in three parts, function endowing, test fusing and assembling as building blocks. And the paper introduces the principle of forming a intelligent virtual control and its design method, which includes the forming process from model elements of an non-intelligent virtual control to an intelligent virtual control. At last, the paper introduces the forming process of virtual instruments based on intelligent virtual controls in frame agreement integrated developing system, and the principle of forming virtual instrument based on intelligent virtual controls.The paper introduces the basic property of rotor vibration, the shape of the orbit in normal condition and the relation between faulty rotatory machine and its character of orbit. The paper research the signal processing method of the orbit, including the spectrum of the two rotor vibration signal, the purification of the orbit, the decompose and compose of the orbit and some characteristic value. Then the function modeling is studied. At last, the program is designed and interfaces of the functions are provided.Finally, a usable orbit of shaft centerline analyzer is assembled in VMIDS development system. The orbit of shaft centerline analyzer is designed as a whole through the composition of the hardware and the software development environment. The paper introduces the constitution elements of VMIDS development system from assembling field of instruments, function library of instruments and intelligent virtual controls. A completely usable intelligent orbit of shaft centerline analyzer is assembled through the process of control creating, property modifying and function endowing. Atlast, the paper gives an application example of orbit of shaft centerline analyzer based on intelligent virtual control.更多还原