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.

Software Design of Reconfigurable Hydraulic Test System

2013 ◽  
Vol 467 ◽  
pp. 483-487
Author(s):  
Yan Ling Liu ◽  
Yong Qiu
Keyword(s):  
Software Design ◽  
Hydraulic System ◽  
Performance Test ◽  
Test System ◽  
Pump Light ◽  
Hydraulic Test ◽  
Light Load ◽  
Reconfigurable System ◽  
Wiring Board ◽  
And Function

This paper simply introduces the application of reconfigurable system in hydraulic system, and systematically summarizes the reconfigurable hydraulic test system hardware composition and function of each part. This paper introduces software design of the reconfigurable system. Moreover, this paper not only gives the wiring board address table, also takes an example of the performance test of throttle speed control circuit and the capacity test of hydraulic pump light load to account for reconfigurable of this hydraulic system.

Design and Characteristic Analysis of Variable Speed Hydraulic System

2012 ◽  
Vol 591-593 ◽  
pp. 179-182
Author(s):  
Yi Jun Zhou ◽  
Jun Xu
Keyword(s):  
Hydraulic System ◽  
Systems Design ◽  
Test System ◽  
Open Loop ◽  
Hydraulic Control ◽  
Variable Speed ◽  
Characteristic Analysis ◽  
Hydraulic Test ◽  
Loop Control ◽  
Detection Technology

The motor variable frequency speed control technology applied to the traditional hydraulic system based on variable speed hydraulic transmission principle with The PLC technology, hydraulic control, detection technology and configuration of organic, it combine PLC as the core of the lower machine control components, PC as the control, researched the variable speed hydraulic test system hardware, software and control systems design. The experiments were performed, realized the variable speed hydraulic experimental platform for open loop control and variable speed hydraulic system parameters real-time monitoring and dynamic display. It overcomes some of the shortcomings of the conventional hydraulic system, improved the efficiency, the hydraulic system run more smoothly and reduce noise. The experiments show that the variable speed hydraulic test bench run well and achieve the purpose.

Design of Hydraulic System of Subsea X-Tree

2012 ◽  
Vol 155-156 ◽  
pp. 540-544
Author(s):  
Hong Lin Zhao ◽  
Jia Yu ◽  
Yuan Long Yue ◽  
Song Li ◽  
Bu Quan Guo
Keyword(s):  
Control System ◽  
Hydraulic System ◽  
Production Control ◽  
Control Valve ◽  
Control Model ◽  
Hydraulic Control ◽  
Hydraulic Systems ◽  
Hydraulic Power ◽  
Production Control System

Onshore hydraulic systems are not generally applied in subsea production control system,so how to design a special needed hydraulic system for subsea X-tree has been one of the hot research questions.Several specific hydraulic components were analyzed, such as hydraulic power unite,umbilical,subsea control model,hydraulic control valve and valve actuator, and then corresponding hydraulic schematic which can meet the requirements of subsea X-tree is presented.

Fatigue Test System for Accumulators

2013 ◽  
Vol 303-306 ◽  
pp. 1272-1275
Author(s):  
Jing Ping Leng ◽  
Jian Jin ◽  
Ke Li Xing
Keyword(s):  
Control System ◽  
Fatigue Test ◽  
Hydraulic System ◽  
Energy Recovery ◽  
Test System ◽  
Test Method ◽  
Hardware System ◽  
Test Requirements ◽  
Upper Computer ◽  
And Control

An energy recovery and high effective fatigue test system for accumulators has been developed through the improvement of test method JB-T 7037-2006 and test requirements JB-T 7036-2006 [1][2]. The test system contains hydraulic system and control system. The hardware system of control system is based on IPC as upper computer and PLC as lower computer, while the software system is based on Borland C++ Builder 6.0, which can realize collecting and saving the field data, drawing and saving testing curve, and generating export.

Analyses of the Long-Term Performance and Tribological Behavior of an Axial Piston Pump Using Diamondlike-Carbon-Coated Piston Shoes and Biodegradable Oil

2007 ◽  
Vol 130 (1) ◽  
Author(s):  
M. Kalin ◽  
F. Majdič ◽  
J. Vižintin ◽  
J. Pezdirnik ◽  
I. Velkavrh
Keyword(s):  
Hydraulic System ◽  
Performance Enhancement ◽  
Test System ◽  
Piston Pump ◽  
Axial Piston Pump ◽  
Hydraulic Test ◽  
Actual Application ◽  
Diamondlike Carbon ◽  
Axial Piston

This work reports on the performance enhancement of a real-scale hydraulic system consisting of diamondlike-carbon (DLC)-coated components in combination with biodegradable oil in long-term experiments under conditions simulating those in an actual application. The performance of a hydraulic axial piston pump with DLC-coated piston shoes was evaluated in a newly designed, dedicated hydraulic test system using fully formulated biodegradable, synthetic ester oil. For comparison, an equal but separated hydraulic system with a conventional commercial pump and stainless-steel shoe surfaces was tested. The tests were run at 85% of the maximum pump load and an oil temperature of around 80°C for a period of 2000h, which corresponds to more than 1yr of continuous 8h∕day operation in an application. A major abrupt oxidation-induced degradation of the oil did not occur in either system; however, the oil from the system comprising the DLC-coated shoes showed noticeably and consistently better results. The wear of the DLC-coated shoes, especially during the running in, was much lower than that in the conventional steel system. Only minor polishing wear was observed on the DLC shoe’s sliding surfaces during the test period, while on the steel shoe’s surfaces, many scratches were found and some erosion of the edges was detected.

scholarly journals Development and Testing of Hydraulic ‘Bharath Valve’ to Control Multiple Actuators

2019 ◽  
Vol 9 (2) ◽  
pp. 2727-2737
Keyword(s):  
Hydraulic System ◽  
Outer Cylinder ◽  
Performance Testing ◽  
Control Valve ◽  
Directional Control ◽  
Direction Control ◽  
Cheap Alternative ◽  
And Performance ◽  
Multiple Actuators ◽  
Spool Valves

The Research is entitled “Design, Fabrication and Performance Testing of Directional Control Valve for Control of Multiple Actuators”. An indexing unit is a direction control valve used in Hydraulic system. This device shall be named ‘Bharath Valve’ (US10180190), as is the name of its Inventor. This valve can control more than one number of actuators. This valve consists of a hollow outer cylinder and inner cylinder. The inner cylinder fits in the hollow portion of outer cylinder; this inner cylinder is operated manually. The rotation of the inner cylinder inside the outer cylinder changes the direction of flow of liquid through the valve this control the movements of actuator. This Indexing valve can become a highly advantageous replacement of the conventional Spool valves that are used for controlling the actuator. In the present scenario one spool valve can control only one actuator thus the number spool valves used in a hydraulic system is equal to the number of actuators. However ‘Bharath’ valve can control more than one number of actuators, this in turn makes the number of system components less and also reduces the overall cost of hydraulic system. Even the controlling of movement of actuators can be easy. A computer interface if given can make this valve versatile and a very cheap alternative to the existing valves, taking number of components, construction, friction and efficiency into account. This research proves that ‘Bharath’ valve has more advantages than that of existing ones and some of the advantages are listed below,  One valve can control more than one actuators thus reduces the number of valves.  Construction of this indexing valve is simpler and parts involved in friction is less.  Reduction in the cost of manufacturing is highly significant.  This valve makes it possible to actuate the desired cylinder keeping the other at rest.  The modification in operating actuators of system can be easily changed by operating ON/OFF flow valve connected to the inlets of Indexing valve.

Dynamic Characterization of Thermal Interface Material for Electronic Cooling

2003 ◽  
Author(s):  
Rocky Shih ◽  
Cullen E. Bash
Keyword(s):  
Standardized Testing ◽  
Test System ◽  
Independent Study ◽  
Test Method ◽  
Thermal Interface Material ◽  
Thermal Interface ◽  
Automated Test ◽  
And Performance ◽  
Interface Materials

The principle of measuring thermal resistance of thermal interface material (TIM) by sandwiching the material between a hot block and cold block is well known in the industry. TIM manufacturers usually use a variation of the industrial standard ASTM D5470 test method, and subsequently provide data that is difficult for the end user to effectively utilize for product development. This paper will discuss the design and construction of an automated TIM test system based on the ASTM D5470 standard. This automated test vehicle provides an independent study of various TIMs. The instrument enables standardized testing and performance documentation of interface materials from a wide array of manufacturers making it easier for end-users to compare and select the appropriate material for various applications. The automated test method is faster and easier to use than previous methods. It requires minimal operator intervention during the test and can perform preconditioning, and non-uniform heating if required. Experimental results obtained from the instrument will be discussed.

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