Modeling and Analysis on Servo Adjustment of Bidirectional Variable Displacement Pump in Hydraulic Drive System of the Cutter Head in a Shield Tunneling Machine

被引：0
|
作者：
Xia Bizhong [1 ]
Feng Pingfa [1 ]
Yang Huayong [2 ]
机构：
[1] Tsinghua Univ, Grad Sch Shenzhen, Shenzhen 518055, Peoples R China
[2] Zhejiang Univ, State Key Lab Fluid Transmiss & Control, Hangzhou 310027, Peoples R China
来源：
FRONTIERS OF MANUFACTURING AND DESIGN SCIENCE, PTS 1-4 | 2011年 / 44-47卷
关键词：
Shield tunneling machine; Cutter head; Hydraulic drive system; Bi-directional variable displacement pump; servo adjustment;
D O I：
10.4028/www.scientific.net/AMM.44-47.1380
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Based on introduction of the basic configuration, working features of hydraulic drive system of the cutter head in a shield machine, the internal structure of the bidirectional variable displacement pump, BVDP, as the kernel element in the above hydraulic system, is depicted and compared with the ordinary variable plunger pump. Then the working principle and process of hydraulic pilot operated servo displacement adjustment about the BVDP are discussed in detail, and then the mathematical models and its transfer functions of the positive and negative displacement adjustments are established respectively. Also, the relationships between the primary performance indices such as stability condition, positioning stiffness, steady-state error, as well as initial control pressure and system parameters are analysis and concluded.
引用
收藏
页码：1380 / +
页数：2
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