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Experimental Determining and Theoretical Predicting of Source Flow Ripple Generated by Fluid Power Piston Pumps
Technical Paper
2000-01-2617
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The paper presents the results of a study on the experimental determination and theoretical prediction of the source flow ripple generated by a fluid power piston pump. This work supports the development of quieter pumps with better fluidborne noise characteristics. As an effective experimental method, the “2 Pressures/2 Systems” method is introduced and used to determine the actual value of the source flow ripple and confirm the prediction results. A theoretical model is derived by the inclusion of the compressibility of the fluid, the fluid momentum in the cylinder chamber and relief grooves, and the pressure-dependent effective bulk modulus of the fluid containing air. The accuracy of the model is confirmed by the comparison of predicted and measured results. Finally, the effectiveness of the experimental method is presented.
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Kojima, E., Yu, J., and Ichiyanagi, T., "Experimental Determining and Theoretical Predicting of Source Flow Ripple Generated by Fluid Power Piston Pumps," SAE Technical Paper 2000-01-2617, 2000, https://doi.org/10.4271/2000-01-2617.Also In
References
- Davidson L.C. “The Internal Impedance of Positive Displacement Pumps (Experimental Determination and Effect on System Noise),” Proceedings of the 32 nd National Conference on Fluid Power 99 100 1976
- O'Neal D.L. Maroney G.E. “Measuring Pump Fluid-Borne Noise Generation Potential,” The BFPR Journal 235 241 1978
- Szerlag S.F. “Rating Pump Fluid-Borne Noise,” SAE paper 750830 1975
- Kojima E. Nagakura H. “Characteristics of Fluid-Borne Noise Generated by Fluid Power Pumps, 1 st Report, Mechanism of Generation of Pressure Pulsation in Axial Piston Pump,” Bulletin of the JSME 25 199 46 53 1982
- Edge K.A. Wing T.J. “The Measurement of the Fluid-Borne Pressure Ripple Characteristics of Hydraulic Components,” Proc. Instn. Mech. Engrs, Part B 197 247 254 1983
- Edge K.A. Johnston D.N. “The ‘Secondary Source’ Method for the Measurement of Pump Pressure Ripple Characteristics, Part A: Description of Method,” Proc. Instn. Mech. Engrs, Part A 204 33 40 1990
- Edge K.A. Johnston D.N. “The ‘Secondary Source’ Method for the Measurement of Pump Pressure Ripple Characteristics, Part B: Experimental Results,” Proc. Instn. Mech. Engrs, Part A 204 41 46 1990
- Weddfelt K. “On Modelling, Simulation and Measurement of Fluid Power Pumps and Pipelines,” Linkoping Studies in Science and Technology, Dissertation 268 99 118 1990
- Kojima E. “A New Method for the Experimental Determination of Pump Fluid-Borne Noise Characteristics,” Proceedings of the 5 th Bath International Fluid Power Workshop, Circuit, Component and System Design 111 135 1992
- 1996 “Hydraulic fluid power-Method for determining pressure ripple levels generated in systems and components-Part 1:Precision method for pumps”
- Edge K. Darling J. “A Theoretical Model of Axial Piston Pump Flow Ripple” First Bath International Fluid Power Workshop 113 136 1988
- Krus P. Weddfelt K. Palmberg J.O. “Fast Pipeline Models for Simulation of Hydraulic Systems” ASME Annual Winter Meeting Dec. 2-6 1991
- Kojima E. Edge K. “Experimental Determination of Hydraulic Silencer Transfer Matrices and Assessment of the method for use as a standard Test Procedure” Seventh Bath International Fluid Power Workshop 221 241 1994
- Yu J. Chen Z. “Fluidborne Noise Characteristics of a Swashplate Type Axial Piston Pump,” Proceedings of the 3 rd International Conference on Fluid Power Transmission and Control Hongzhou 437 443 1993
- Kojima E. Shinada M. “Characteristics of Fluidborne Noise generated by a Fluid Power Pump, 4 th Report, Pressure Ripple in Hydrostatic Power Transmission” Bulletin of the JSME 29 258 4147 4155 1986
- Edge K.A. Darling J. “Cylinder Pressure Transients in Oil Hydraulic Pumps with Sliding Plate Valves,” Proc. Instn. Mech. Engrs 200 B1 45 54 1986
- Yu J. et al “The Variation of Oil Effective Bulk Modulus with Pressure in Hydraulic Systems,” Trans. ASME, Journal of Dynamic Systems, Measurement, and Control 116 146 150 1994