SIMULATION AND EXPERIMENTAL VALIDATION OF FLOW-CURRENT CHARACTERISTIC OF A SAMPLE HYDRAULIC SERVO VALVE

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SADOUGHI M.S.; SEYFI R.; SADAT FOUMANI M.

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Journal Paper

Paper Information

Journal: SCIENTIA IRANICA Year:2010 | Volume:17 | Issue:5 (TRANSACTION B: MECHANICAL ENGINEERING) Page(s): 327-336

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Information Journal Paper

Title

SIMULATION AND EXPERIMENTAL VALIDATION OF FLOW-CURRENT CHARACTERISTIC OF A SAMPLE HYDRAULIC SERVO VALVE

Author(s)

SADOUGHI M.S. | SEYFI R. | SADAT FOUMANI M. | Issue Writer Certificate

Keywords

HYDRAULIC SERVO VALVE

TORQUE MOTOR

PILOT CIRCUIT

SPOOL

FLOW-CURRENT CURVE

Abstract

This paper presents a novel model to simulate the flow-current characteristic curve of an electro-HYDRAULIC SERVO VALVE in steady state condition. This characteristic curve has three major zones: dead zone, linear zone and saturation zone. By using the presented approach, we can simulate the behavior of all types of valves including under lapped, critical center (zero lapped) and over lapped valves. A hydraulic tester has been designed and constructed for validation of the results. It can test the performance of flow-current and some other properties of the valve. Comparison of experimental and simulated curves describes that the model has an acceptable accuracy in determining the four important valve characteristics: flow gain, saturation flow, saturation current and dead zone. As a result, the model can be used for other studies such as geometrical sensitivity analysis (the ultimate objective of this modeling) or design optimization. Since this model is presented in a computer based algorithm, it can be easily used to observe and measure the effects of change in the parameters of interest (particularly geometrical parameters of the valve) on the FLOW-CURRENT CURVE.

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APA: Copy

SADOUGHI, M.S., SEYFI, R., & SADAT FOUMANI, M.. (2010). SIMULATION AND EXPERIMENTAL VALIDATION OF FLOW-CURRENT CHARACTERISTIC OF A SAMPLE HYDRAULIC SERVO VALVE. SCIENTIA IRANICA, 17(5 (TRANSACTION B: MECHANICAL ENGINEERING)), 327-336. SID. https://sid.ir/paper/289964/en

Vancouver: Copy

SADOUGHI M.S., SEYFI R., SADAT FOUMANI M.. SIMULATION AND EXPERIMENTAL VALIDATION OF FLOW-CURRENT CHARACTERISTIC OF A SAMPLE HYDRAULIC SERVO VALVE. SCIENTIA IRANICA[Internet]. 2010;17(5 (TRANSACTION B: MECHANICAL ENGINEERING)):327-336. Available from: https://sid.ir/paper/289964/en

IEEE: Copy

M.S. SADOUGHI, R. SEYFI, and M. SADAT FOUMANI, “SIMULATION AND EXPERIMENTAL VALIDATION OF FLOW-CURRENT CHARACTERISTIC OF A SAMPLE HYDRAULIC SERVO VALVE,” SCIENTIA IRANICA, vol. 17, no. 5 (TRANSACTION B: MECHANICAL ENGINEERING), pp. 327–336, 2010, [Online]. Available: https://sid.ir/paper/289964/en

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