船用齿轮箱状态监测与故障诊断系统的研究

发布时间：2018-05-15 13:02

本文选题：故障诊断 + 状态监测　；参考：《浙江海洋学院》2015年硕士论文

【摘要】：船用齿轮箱作为柴油机与螺旋桨连接设备,其工作性能的好坏直接决定船舶运行的稳定性,且齿轮箱由于长时间严重磨损与挤压,损坏率较柴油其他部件更大。为了杜绝船用齿轮箱在运转时萌发故障,必须对船用齿轮箱进行实时故障监测和诊断。通过对船用齿轮箱故障类型、故障机理和故障特征信息深入分析,本文设计了状态监测与诊断系统。状态监测与故障诊断系统主要由硬件和软件两部分组成。硬件部分由工控机、采集卡和数据处理器等设备组装而成,软件部分主要由故障监测、信号处理和数据存储融合而成。其中,软件设计和开发是本文的重点。故障监测系统是利用软件Lab VIEW编写多通道故障数据采集程序,与硬件构成故障监测系统;数据处理算法融合时域信号分析、频域信号分析和时频分析等常用故障信号诊断算法。简单算法利用Lab VIEW程序框图能够快速完成;复杂算法则利用C#编写动态链接库(DLL),结合Lab VIEW调用DLL,降低数据处理算法编写难度;数据存储主要是利用Lab VIEW程序框图编电子表格存储程序,将采集到的程序保存至硬盘,便于后续的分析和查阅。利用模拟试验台验证了该设备状态监测与故障诊断系统的可靠性。首先,在待测点处布置传感器,确定传感器位置;然后,利用监测和诊断系统采集和分析故障振动信号;最后,利用齿轮箱故障特征信息验证船用齿轮箱故障监测与诊断系统的可靠性。针对故障监测与诊断系统的关键技术的设计和研究,不仅有利于普遍提高我国船舶诊断技术水平,而且保证船舶在运行过程中的稳定性,具有重大意义。
[Abstract]:As the connection equipment between diesel engine and propeller, the performance of marine gearbox directly determines the stability of ship operation, and the damage rate of the gearbox is larger than that of other parts of diesel because of serious wear and extrusion for a long time. In order to prevent the ship gearbox from sprouting fault, it is necessary to monitor and diagnose the ship gearbox in real time. Based on the analysis of fault type, fault mechanism and fault characteristic information of marine gearbox, a condition monitoring and diagnosis system is designed in this paper. The condition monitoring and fault diagnosis system is mainly composed of hardware and software. The hardware part is composed of industrial computer, acquisition card and data processor, and the software part is mainly composed of fault monitoring, signal processing and data storage. Among them, the software design and development is the focus of this paper. Fault monitoring system is a multi-channel fault data acquisition program written by software Lab VIEW, which is composed of hardware, data processing algorithm, time-domain signal analysis, frequency-domain signal analysis, time-frequency analysis and other commonly used fault signal diagnosis algorithms. The simple algorithm can be completed quickly by using the block diagram of Lab VIEW program, and the complex algorithm can use C # to compile dynamic link library (DLLL), and combine with Lab VIEW to call DLLL to reduce the difficulty of data processing algorithm. The main purpose of data storage is to use the block diagram of Lab VIEW program to compile the spreadsheet storage program and save the collected program to the hard disk for the convenience of subsequent analysis and reference. The reliability of the equipment condition monitoring and fault diagnosis system is verified by the simulation test rig. First, the sensor is arranged at the point to be measured, and the sensor position is determined. Then, the fault vibration signal is collected and analyzed by using the monitoring and diagnosis system. Finally, The reliability of ship gearbox fault monitoring and diagnosis system is verified by using gearbox fault characteristic information. The design and research of the key technology of the fault monitoring and diagnosis system is of great significance not only to improve the technical level of ship diagnosis in China, but also to ensure the stability of the ship in the process of operation.
【学位授予单位】：浙江海洋学院
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U672

【相似文献】