Electro-hydraulic proportional control of thrust system for shield tunneling machine

被引：250

作者：

Yang Huayong ^{[1
]}

Shi Hu ^{[1
]}

Gong Guofang ^{[1
]}

Hu Guoliang ^{[2
]}

机构：

[1] Zhejiang Univ, State Key Lab Fluid Power Transmiss & Control, Hangzhou 310027, Peoples R China

[2] E China Jiaotong Univ, Coll Mechatron, Nanchang 330013, Peoples R China

来源：

AUTOMATION IN CONSTRUCTION | 2009年 / 18卷 / 07期

关键词：

Shield; Electro-hydraulic proportional control; Pressure and flow compound control; Synchronization;

D O I：

10.1016/j.autcon.2009.04.005

中图分类号：

TU [建筑科学];

学科分类号：

081407 [建筑环境与能源工程];

摘要：

In this paper, a thrust hydraulic system of shield tunneling machine with pressure and flow compound control scheme is proposed. In the control system, the task of real-time measuring of the pressure and the displacement of hydraulic cylinder in each thrust group is accomplished by pressure sensor and displacement sensor respectively, forming the closed-loop pressure and speed control with proportional valves. Thrust system mathematical modeling including hydraulic system and multi-cylinder acting dynamics is presented. Synchronization motion control between cylinders is also achieved by means of master-slave PID with dead band compensating displacement error. Experiments of thrust pressure and speed control as well as cylinder synchronization are conducted on the shield simulation test rig. The experimental results show that the proposed thrust hydraulic system and its control can meet the requirements of tunneling. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：950 / 956

页数：7

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