液压机械控制虚拟仿真实验教学系统设计  

Design of Virtual Simulation Experimental Teaching System for Hydraulic Machinery Control

作　　者：王龙庭[1] 张彦廷[1] 石永军[1] 盖永革 曹爱请 黄鲁蒙[1] WANG Long-ting;ZHANG Yan-ting;SHI Yong-jun;GAI Yong-ge;CAO Ai-qing;HUANG Lu-meng(College of Mechanical and Electronic Engineering,China University of Petroleum(East China),Qingdao 266580,China)

机构地区：[1]中国石油大学(华东)机电工程学院,山东青岛266580

出　　处：《液压气动与密封》2023年第6期34-38,45,共6页Hydraulics Pneumatics & Seals

基　　金：国家自然科学基金(51779267)。

摘　　要：当前高校液压机械类专业的实验教学环节易受到教学资源短缺的限制,且不能实现资源共享,从一定程度上了影响了实验教学的效果,而计算机虚拟仿真技术的出现为液压机械专业的实验教学提供了一条新的途径。给出了液压机械控制虚拟仿真实验教学系统的总体框架设计与工作流程设计,其中系统硬件平台部分包括客户操控端、服务器、虚拟装置和各种连接端口;从软件层面分析系统服务器运行LabVIEW平台的相关软件程序,并通过系统主界面控制硬件模块工作;为提高虚拟仿真系统的控制精度,在控制算法上采用增量PID控制算法,适时调整采样信号和采样周期,以更准确地控制虚拟装置的工作。测试结果表明与传统实验教学系统相比,提出的仿真实验教学系统具有更快的机械控制响应速度和更精确的行进轨迹。At present,the experimental teaching of hydraulic machinery specialty in Colleges and universities is easy to be limited by the shortage of teaching resources,and cannot achieve resource sharing,which has affected the experimental teaching effect to a certain extent.The emergence of computer virtual simulation technology provides a new way for the experimental teaching of hydraulic machinery specialty.The overall framework design and workflow design of the virtual simulation experimental teaching system for hydraulic mechanical control are given.The hardware platform of the system includes client control terminal,server,virtual device and various connection ports.Analyze the software programs of the system server running the LabVIEW platform from the software level,and control the hardware module work through the main interface of the system;In order to improve the control precision of the virtual simulation system,the incremental PID control algorithm is adopted in the control algorithm to adjust the sampling signal and sampling period timely,so as to control the work of the virtual device more accurately.The test results show that compared with the traditional experimental teaching system,the proposed simulation experimental teaching system has faster response speed of mechanical control and more accurate trajectory.

关 键 词：液压机械 控制 虚拟仿真 LABVIEW PID 

分 类 号：TH137[机械工程—机械制造及自动化] TP273[自动化与计算机技术—检测技术与自动化装置]