AGC伺服缸测试装置及试验研究

发布时间：2018-03-21 12:54

本文选题：AGC　切入点：伺服缸测试　出处：《东北大学》2013年硕士论文　论文类型：学位论文

【摘要】：液压伺服油缸是电液伺服系统或比例系统中的执行元件,其作用十分重要。通过伺服油缸,从而实现对该负载的运动方向、位置、速度等随意的控制。而作为液压系统回路中的一个关键环节,其性能指标直接影响系统的精度和动、静态特性,故当其出现故障时,调试和故障诊断难度很高,常因无法及时排除故障而被迫停产检修。因此,进行AGC伺服液压缸测试系统研究是十分重要的。本文介绍了AGC伺服缸测试装置的研究背景、国内外发展现状及发展趋势并分析了液压测试技术的发展前景。对AGC伺服缸所需检测的8项测试内容：动作试验；空载启动压力测试；带载动摩擦力测试；偏摆测试；耐压试验：内泄漏测试；频率特性测试；阶跃响应测试作出了全面的技术研究,并设计试验方案及试验装置。重点对摩擦力测试、内泄漏测试进行了深入研究。对实验室现有设备建立数学模型,确定了液压系统的传递函数,并应用Matlab/Simulink仿真平台对液压系统进行仿真分析,而且采用PID控制对系统进行校正,得出系统的响应时间、增益等性能参数。利用实验室设备搭建伺服缸内泄漏检测试验装置,并完成油液检测、液压泵调试等工作,进行完成不同压力下,泄漏油液体积与时间关系及不同压力下,压降与时间关系两项测试,并对实验数据进行分析。对整个测试过程进行总结,并对AGC伺服缸测试技术与装置的研究前景进行展望。
[Abstract]:Hydraulic servo cylinder is an executive element in electro-hydraulic servo system or proportional system, and its function is very important. As a key link in the hydraulic system loop, its performance index directly affects the system's precision, dynamic and static characteristics, so it is very difficult to debug and diagnose the system when it occurs a fault. It is very important to study the AGC servo cylinder test system because it is often forced to stop production and overhaul because it can not be eliminated in time. This paper introduces the research background of the AGC servo cylinder testing device. The present situation and development trend at home and abroad are analyzed, and the development prospect of hydraulic testing technology is analyzed. Eight items of testing contents for AGC servo cylinder are as follows: action test, no-load starting pressure test, dynamic friction force test with load, deflection test; Voltage test: internal leakage test; frequency characteristic test; step response test have made comprehensive technical research, and design test scheme and test device. The mathematical model of the existing equipment in the laboratory is established, the transfer function of the hydraulic system is determined, and the hydraulic system is simulated and analyzed by using the Matlab/Simulink simulation platform, and the system is corrected by using the PID control. The system performance parameters such as response time, gain and so on are obtained. A servo cylinder leak detection test device is built with laboratory equipment, and oil detection and hydraulic pump debugging are completed. The relationship between oil leakage volume and time and the relationship between pressure drop and time under different pressure are analyzed. The whole testing process is summarized and the research prospect of AGC servo cylinder testing technology and device is prospected.
【学位授予单位】：东北大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TH137

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