Application of ultra-high molecular weight polyethylene in a hydraulic drive

2020 ◽  
pp. 77-78
Keyword(s):  
Molecular Weight ◽  
Low Temperature ◽  
High Molecular Weight ◽  
Hydraulic Drive ◽  
Control Valve ◽  
Hydraulic Control ◽  
Hydraulic Motor ◽  
Hydraulic Pump ◽  
Hydraulic Oil ◽  
Ultra High Molecular Weight

The use of ultra-high molecular weight polyethylene (UHMW PE) for the manufacture of various parts, in particular cuffs for hydraulic drives, is proposed. The properties and advantages of UHMW PE in comparison with other polyethylene materials are considered. Keywords ultra-high molecular weight polyethylene, hydraulic pump, hydraulic motor, hydraulic control valve, hydraulic oil, low temperature. [email protected]

The Study of Temperature Control Hydraulic Sensor

2012 ◽  
Vol 468-471 ◽  
pp. 1266-1269
Author(s):  
Yan Jun Zhang ◽  
Zi Ming Kou ◽  
Gui Jun Gao ◽  
Jun Zhang
Keyword(s):  
Temperature Control ◽  
Hydraulic System ◽  
Control Valve ◽  
Elastic Force ◽  
Working Environment ◽  
Hydraulic Circuit ◽  
New Type ◽  
Spool Valve ◽  
Special Working

Abstract. To improve the automation degree in special working environment which contains explosive gas. We develop a new type of temperature control hydraulic sensor basically on theory and lots of experiments. As the temperature reaches about 85°C，the motion part of the inductor will stretch to a certain length, and then it will push the adjusting rod. Simultaneously，the adjusting rod will overcome the elastic force of the spring and compel the spool valve to deform, and finally the control valve port will be open, it allows the control oil of the hydraulic system to pass. At last it reaches our destination that we can make the control of hydraulic circuit be realized.

Analysis and Simulation on Drive Characteristic of High-Strength Water Hydraulic Artificial Muscle

2014 ◽  
Vol 889-890 ◽  
pp. 488-492
Author(s):  
Zeng Meng Zhang ◽  
Jiao Yi Hou ◽  
Zheng Wen Sun ◽  
Yong Jun Gong ◽  
Jian Miao
Keyword(s):  
Flow Rate ◽  
Control Valve ◽  
Artificial Muscle ◽  
High Strength ◽  
Hydraulic Control ◽  
Hydraulic Circuit ◽  
Water Hydraulic ◽  
The Difference ◽  
Hydraulic Valves ◽  
Load Mass

Driving processes and characteristics are different between the water hydraulic artificial muscle and pneumatic artificial muscle due to the difference of work media employed in muscles. An appropriative hydraulic circuit was designed to control the pressure of the water hydraulic artificial muscle and the performance of this system was analyzed. An AMESim model of the control system was built and the dynamic characteristics are analyzed with various parameters of the hydraulic circuit and various loads by simulation. The results show that the performance of the water hydraulic control valve should agree with the dimension of the water hydraulic artificial muscle. The rated flow rate of the water hydraulic valves can be selected increasingly while the load mass is low. Meanwhile, the overshoot is generated and enlarged along with the increases of the flow rate and load mass. These contribute to the improvements of designs and researches on control systems of water hydraulic artificial muscles.

Design of a Logging Tool Valve Based on Finite Element Analysis

2012 ◽  
Vol 189 ◽  
pp. 411-414
Author(s):  
Min Qiang Dai ◽  
Sheng Dun Zhao ◽  
Wei Cai
Keyword(s):  
Theoretical Calculations ◽  
High Reliability ◽  
Control Valve ◽  
Simulation Software ◽  
The Body ◽  
Process Equipment ◽  
Hydraulic Control ◽  
Element Analysis ◽  
Dual Channel ◽  
Working Principle

The paper introduces the working principle of a logging instrument, and according to the working principle and instrument’s function of two-way hydraulic control valve. Facing to the key problems of process equipment in the actual service and workflow, the structure of value was designed and optimized. According to the basic functions and physical model of dual-channel and two-way hydraulic control valves, we used hydraulic system simulation software to establish the mathematical model of the entire system. Besides, we maked the simulation of the running state based on the Running results. At the same time, on the grounds of theoretical calculations and simulation results, the influences of the body affected by the external factors in work environment were assessed, and the logging instrument with a dual-channel and two-way hydraulic control valve is designed and processed. Meanwhile, we build an experimental platform and make the experiment according to principle of the instrument. The results show that the design of this dual-channel and two-way hydraulic control valve logging instrument met the work requirements, and it has high reliability in oil exploration, which could be promoted and used in logging areas.

Design and Experimental Study a Logging Instrument with Dual Channel and Two-Way Hydraulic Control Valve

2011 ◽  
Vol 341-342 ◽  
pp. 848-853 ◽  
Author(s):  
Min Qiang Dai ◽  
Sheng Dun Zhao ◽  
Xiao Mei Yuan
Keyword(s):  
Experimental Study ◽  
High Reliability ◽  
Control Valve ◽  
Process Equipment ◽  
Hydraulic Control ◽  
Work Requirements ◽  
Experimental Platform ◽  
Dual Channel ◽  
Actual Service ◽  
Working Principle

The paper introduces the working principle of a logging instrument, and according to the working principle and instrument’s function of two-way hydraulic control valve. Facing to the key problems of process equipment in the actual service and workflow, the structure of value was designed and optimized. At the same time, the logging instrument with a dual-channel and two-way hydraulic control valve is designed and processed. Meanwhile, we build an experimental platform and make the experiment according to principle of the instrument. The results show that the design of this dual-channel and two-way hydraulic control valve logging instrument met the work requirements, and it has high reliability in oil exploration, which could be promoted and used in logging areas.

Study on Hydraulic System of Test Stand for Subsea Control Module

2014 ◽  
Vol 548-549 ◽  
pp. 1023-1029
Author(s):  
Hai Xia Gong ◽  
Jian Li ◽  
Yun Peng Wang ◽  
Hui Gang Qu
Keyword(s):  
Hydraulic System ◽  
Control Valve ◽  
Test System ◽  
Test Stand ◽  
Test Method ◽  
Hydraulic Control ◽  
Hydraulic Test ◽  
Control Module ◽  
And Performance ◽  
And Function

This paper firstly explained the working principle of Subsea Control Module (SCM) and function and performance of the electro-hydraulic control valves, and then mathematical model of the electro-hydraulic control valve in SCM was analyzed. The test board was designed according to characters of hydraulic system of the test stand. And on the basis of these, an effective testing method of the electro-hydraulic control valve in SCM has been defined. According to the test method of hydraulic system, we built and analyzed a model of the hydraulic test system by using the AMESim software. Based on the analysis results, the judgments whether or not the test stand could meet the requirements is made.

CFD-Based Visualization Research on the Rotation of Hydraulic Slide Valve Spool

2014 ◽  
Vol 912-914 ◽  
pp. 593-597
Author(s):  
Bin Yuan ◽  
Zhu Jiang
Keyword(s):  
Control System ◽  
Numerical Analysis ◽  
Three Dimensional ◽  
Slide Valve ◽  
Hydraulic Control ◽  
Fluid Analysis ◽  
Valve Structure ◽  
Oil Flow ◽  
Hydraulic Control System ◽  
Cfd Numerical Analysis

The hydraulic slide valve with round orifice spool is often used in hydraulic control system. But it is prone to rotate when the hydraulic oil flow is large. The three-dimensional fluid analysis technology was used to numerically simulate the flow field in the hydraulic slide valve. By using the pressure and velocity characteristics generated for different spool structures by the CFD numerical analysis, the main reason of slide valve rotation was analyzed, which can provide basis for the optimal design of the slide valve structure.

Modeling and Control of an Electro-Hydraulic Poppet Valve

2004 ◽  
Author(s):  
Patrick Opdenbosch ◽  
Nader Sadegh ◽  
Wayne J. Book
Keyword(s):  
Mathematical Model ◽  
Control Valve ◽  
Model Parameters ◽  
Hydraulic Control ◽  
Nonlinear Mathematical Model ◽  
Modeling And Control ◽  
Poppet Valve ◽  
Control Scheme ◽  
Experimental Approaches ◽  
And Control

This paper explores the dynamic modeling of a novel two stage bidirectional poppet valve and proposes a control scheme that uses a Nodal Link Perceptron Network (NLPN). The dynamic nonlinear mathematical model of this Electro-Hydraulic Control Valve (EHCV) is based on the analysis of the interactions among its mechanical, hydraulic, and electromagnetic subsystems. A discussion on experimental approaches to determine the model parameters is included along with model validation results. Finally, the control scheme is developed by proposing that the states of the EHCV follow a set of desired states, which are calculated based upon the desired valve flow conductance coefficient KV. A simulation is presented at the end to verify the proposed control scheme.

Sign in / Sign up

Export Citation Format

Share Document