基于LabVIEW的离心式化工泵振动测试系统设计

兰州理工大学学报 ›› 2020, Vol. 46 ›› Issue (4): 33-37.

基于LabVIEW的离心式化工泵振动测试系统设计

赵荣珍, 户文刚

兰州理工大学机电工程学院, 甘肃兰州 730050

收稿日期:2018-06-25 出版日期:2020-08-28 发布日期:2020-11-10
作者简介:赵荣珍(1960-),女,山东枣庄人,博士,教授,博导.
基金资助:
国家重点研发计划(2016YFF0203303-04),国家自然科学基金(51675253)

Design of centrifugal chemical pump vibration test system based on LabVIEW

ZHAO Rong-zhen, HUWen-gang

College of Mechano-Electronic Engineering, Lanzhou Univ. of Tech., Lanzhou 730050, China

Received:2018-06-25 Online:2020-08-28 Published:2020-11-10

摘要/Abstract

摘要： 针对传统离心泵振动测试时仪器较多、仪器可靠性较差和测试成本偏高等缺点,运用虚拟仪器技术,采用LabVIEW图形化、模块化的编程语言编写了数据的采集、处理、保存和故障诊断程序,并且利用闭式回路试验装置、振动加速度传感器和数据采集卡组建了离心泵振动测试系统.详细阐述了虚拟仪器系统的硬件结构与软件构成、设计思想及其理论依据.虚拟振动测试系统以离心泵为研究对象,实现了多通道的数据采集、数据实时分析和数据保存等功能.通过该虚拟振动测试系统可以采集试验离心泵的振动加速度信号,并对所得信号数据进行轴心轨迹分析和频谱分析,实现了离心泵的故障诊断.最后在离心泵实验台验证了该虚拟仪器系统在实际振动监测中的有效性,该系统具备良好的人机交互界面,易于维护和系统扩展.

关键词: 虚拟仪器, LabVIEW, 离心泵, 振动测试, 故障诊断

Abstract: Due to the disadvantages of traditional centrifugal pump vibration test, such as more instruments, poor reliability and high test cost etc., this research adopts virtual instrument technology, using LabVIEW graphical and modular programming language to code a program for data acquisition, processing, preservation and fault diagnosis, and meantime utilizing closed-circuit test device, vibration acceleration sensor and data acquisition card as well to build up a system of virtual vibration test system for centrifugal pump. The hardware structure, software frame, design ideas and relevant theoretical basis all associated with the virtual instrument system are elaborated one by one in detail in this project. The vibration test system is oriented to centrifugal pump and can realize claimed functions, such as multi-channel data acquisition, real-time data analysis and data preservation. Vibration acceleration signal of tested centrifugal pump can be collected by thistesting system. The obtained signal can be analyzed by axle center track analysis plus FFT spectrum analysis. Therefore it has realized fault diagnosis of centrifugal pump. Finally, effectiveness of the virtual instrument system in actual vibration monitoring is verified on a centrifugal pump test bench. The system exhibits a good human-machine interface, and is easy to maintain and be expanded.

Key words: virtual instrument, LabVIEW, centrifugal pump, vibration test, fault diagnosis

中图分类号:

TH311
TP277

赵荣珍, 户文刚. 基于LabVIEW的离心式化工泵振动测试系统设计[J]. 兰州理工大学学报, 2020, 46(4): 33-37.

ZHAO Rong-zhen, HUWen-gang. Design of centrifugal chemical pump vibration test system based on LabVIEW[J]. Journal of Lanzhou University of Technology, 2020, 46(4): 33-37.

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