Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 30135
Calibrations and Effect of Different Operating Conditions on the Performance of a Fluid Power Control System with Servo Solenoid Valve

Authors: Tahany W. Sadak, Fouly, A. Anwer, M. Rizk

Abstract:

The current investigation presents a study on the hydraulic performance of an electro-hydraulic servo solenoid valve controlled linear piston used in hydraulic systems. Advanced methods have been used to measure and record laboratory experiments, to ensure accurate analysis and evaluation. Experiments have been conducted under different values of temperature (28, 40 and 50 °C), supply pressure (10, 20, 30, 40 and 50 bar), system stiffness (32 N/mm), and load (0.0 & 5560 N). It is concluded that increasing temperature of hydraulic oil increases the quantity of flow rate, so it achieves an increase of the quantity of flow by 5.75 % up to 48.8 % depending on operating conditions. The values of pressure decay at low temperature are less than the values at high temperature. The frequency increases with the increase of the temperature. When we connect the springs to the system, it decreases system frequency. These results are very useful in the process of packing and manufacturing of fluid products, where the properties are not affected by 50 °C, so energy and time are saved.

Keywords: Electro Hydraulic Servo Valve, fluid power control system, system stiffness, static and dynamic performance.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1474676

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 255

References:


[1] Sundaram, Shanmuga K., Hydraulic and Pneumatic Controls, S. Chand & Company Ltd, India (2006).
[2] Arafa, H. A. and Rizk, M., Identification and Modeling of Some Electrohydraulic Servo-Valve Nonlinearities, Proc. Instn Mech. Engrs, Part C (1987), 201 (C2), pp. 137 - 144.
[3] Arafa, H. A. and Rizk, M., Spool Hydraulic Stiffness and Flow Force Effects in Electrohydraulic Servo-Valves, Proc. Instn Mech. Engrs, Part C (1987), 201 (C3), pp. 193 - 199.
[4] Sadak, T. W., Rizk, M. and Marzouk, W. W., Effect of Fluid Power Control System Designs on Static and Dynamic Performance of Hydraulic Cylinders, Minia University Press, July (2007), Vol. 26, No. 2. pp. 120 - 130.
[5] Federlein, H. G., How to Analyze Steady-State Flow in a Hydraulic System, Hydraulics & Pneumatics, June (1976), pp. 61 - 62.
[6] Federlein, H. G., How to Analyze Steady-State Pressure in a Hydraulic System, Hydraulics & Pneumatics, June (1976), pp. 70 - 72.
[7] Servo Solenoid Valves Catalogue, Bosch Rexroth AG, Industrial Hydraulics, Zum Eisengie├čer 1, D - 97816 Lohr am Main, Germany.
[8] Digibar Pressure Transducers, HBM, Hottinger Baldwin Messtecchnik, GmbH, Postfach 4235. Im Tiefen See 45, D - 6100 Darmstadt 1, Germany.
[9] Inductive Displacement Transducers, HBM, Hottinger Baldwin Messtecchnik, GmbH, Postfach 4235, Im Tiefen See 45, D - 6100 Darmstadt 1, Germany.
[10] Amplifier With Digital Indicator, HBM, Hottinger Baldwin Messt-ecchnik GmbH, Postfach 4235, Im Tiefen See 45, D - 6100 Darmstadt 1, Germany.
[11] Channel USB Recorder / Logger Catalogue, Velleman Instruments (2003), Legen Heirweg 33, 9890 Gavere, Belgium.