Study on Dynamic Characteristics of Digital Hydraulic Transformers

被引：1

作者：

Liu T. ^{[1
,2
]}

Han Y. ^{[1
,2
]}

Sun R. ^{[1
,2
]}

Zhao D. ^{[1
,2
]}

机构：

[1] Hebei Key Laboratory of Fluid Power Transmission and Control of Heavy Machinery, Qinhuangdao

[2] Key Laboratory of Advanced Forging Technology and Science, Ministry of Education, Qinhuangdao

来源：

Zhongguo Jixie Gongcheng/China Mechanical Engineering | 2021年 / 32卷 / 03期

关键词：

Digital hydraulic; Dynamic characteristic; Hydraulic transformer; Modeling and simulation;

D O I：

10.3969/j.issn.1004-132X.2021.03.005

中图分类号：

学科分类号：

摘要：

The digital hydraulic transformer(DHT) combined several pump/motor flow units with binary displacement ratio to rotate synchronously, and realized different transformation ratio through the control of high-speed on-off valve group status. The structure and principle of DHT were introduced. The dynamic characteristics of DHT were simulated and analyzed through theoretical derivation and mathematical modeling. The prototype was manufactured and the dynamic characteristics were verified by experiments. DHT has a fast response and a wide range of pressure changes, and may be used as a secondary regulating element in the hydraulic constant pressure network systems to drive the linear loads, and may also recover the pressure energy at the load ends, which is of great significance to improve the efficiency of the hydraulic systems. © 2021, China Mechanical Engineering Magazine Office. All right reserved.

引用

页码：284 / 289

页数：5

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