摘要
Based on the pressure regulation circuit adopting electro-hydraulic proportional relief valve to control tension, a new type of electro-hydraulic compound control circuit with throttle control unit is presented, which can obtain optimal dynamic damping ratio through real-time altering pressure-flow gain of the throttle control unit, improve the dynamic characteristic of tension follow-up control for the tension system with high inertia loads. Moreover, the characteristic when the cable linear velocity variation causes change of tension is investigated, and a compound control strategy is proposed. The theoretical analysis and experimental results show that the electro-hydraulic compound control circuit is effective and the characteristic of the compound control strategy is satisfactory.
Based on the pressure regulation circuit adopting electro-hydraulic proportional relief valve to control tension, a new type of electro-hydraulic compound control circuit with throttle control unit is presented, which can obtain optimal dynamic damping ratio through real-time altering pressure-flow gain of the throttle control unit, improve the dynamic characteristic of tension follow-up control for the tension system with high inertia loads. Moreover, the characteristic when the cable linear velocity variation causes change of tension is investigated, and a compound control strategy is proposed. The theoretical analysis and experimental results show that the electro-hydraulic compound control circuit is effective and the characteristic of the compound control strategy is satisfactory.
基金
This project is supported by National Natural Science Foundation of China (No.50475105).
作者简介
ZHONG Tianyu, born in 1973, is currently a PhD candidate in State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, China. He received his master degree from Department of Mechanical Engineering of Jilin University, China, in 2002. His research interests include computer control and control method. Tel： ＋86-571-87951314-6202, ＋86-13754316710; E-mail： zty_yyyy@163.comWANG Qingfeng, born in 1963, is currently a professor in State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, China. His research interests include ship electrohydraulic control system and integrated control on mechatronic systems. He has published more than 40 papers. Tel： ＋86-571-87952226, ＋86-13606702187; E-mail： qfwang@zju.edu.cnLI Yanmin, born in 1964, is currently a PhD candidate in State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, China. His research interests include mechanical design and electrohydraulic control system. He has published 7 papers. Tel： ＋86-571-87951314-6202, ＋86-13064743991 ; E-mail： ymli64@zju.edu.cnGONG Fangyou, born in 1978, is currently an assistant engineer in No.715 Research Institute, China Shipbuilding Industry Corporation, China. Tel： ＋86-571-56782131
