基于性能参数检测的工程机械状态监测技术研究

发布时间：2018-02-11 07:46

本文关键词： 工程机械性能参数状态监测虚拟仪器检测 LabVIEW 发动机液压系统　出处：《石家庄铁道大学》2015年硕士论文　论文类型：学位论文

【摘要】：伴随科学技术的飞速发展,越来越多的结构复杂,功能完善,自动化程度高的工程机械如雨后春笋般发展起来。由于恶劣的工作环境等众多无法避免的因素影响,机械设备时而出现各种故障,使其预定功能丧失,甚至造成严重损失。故而如何保证机械设备能够正常运行成为当务之急。这使得工程机械状态监测的重要性突显出来。与此同时,计算机软件技术不断进步,虚拟仪器逐渐走向成熟。运用虚拟仪器技术可以共享硬件和软件资源,方便快捷的建立综合检测系统,并能够利用计算机实现信号分析、数据处理、生成报表、波形保存及回放等功能。基于Lab VIEW软件,使用各种传感器、NI CompactDAQ和NI SCXI信号调理系统组建了工程机械状态监测系统,可实现对工程机械动力系统和液压系统状态参数的检测。发动机状态检测系统通过对发动机起动性能、功率、供油系统和表面振动信号的检测分析可以评价发动机的工作状态;液压系统状态检测通过对压力、温度、振动信号的分析可以判断液压装置的工作状态;常用状态参数检测包括温度和转速,温度检测不但能够单通道测试,还能多通道测试;转速检测能够对常用旋转机械测量转速。该检测系统还包括了数据存储、波形保存、波形回放和生成报表功能。
[Abstract]:With the rapid development of science and technology, more and more construction machinery with complex structure, perfect function and high degree of automation are springing up. Machinery and equipment sometimes appear various malfunctions, resulting in the loss of their scheduled functions, Therefore, how to ensure the normal operation of mechanical equipment becomes a top priority. This makes the importance of state monitoring of construction machinery highlighted. At the same time, computer software technology continues to progress. Using virtual instrument technology can share hardware and software resources, set up comprehensive detection system conveniently and quickly, and can use computer to realize signal analysis, data processing and generate report form. Based on Lab VIEW software, the state monitoring system of construction machinery is constructed by using various sensors, such as NI CompactDAQ and NI SCXI signal conditioning system. The engine condition detection system can evaluate the engine working state by detecting and analyzing the engine starting performance, power, fuel supply system and surface vibration signal. The working state of hydraulic system can be judged by analyzing the pressure, temperature and vibration signal. The commonly used state parameter detection includes temperature and rotational speed, temperature detection can not only be tested by single channel, but also can be tested by multiple channels. The system also includes data storage, waveform preservation, waveform playback and report generation.
【学位授予单位】：石家庄铁道大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU60

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