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Methods of Reducing Flow Ripple from Fluid Power Pumps - a Theoretical Approach
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English
Abstract
Noise emission is often considered to be one of the major drawbacks of fluid power systems. One of the main sources of noise is flow ripple caused by positive displacement pumps. This paper is concerned with the problems of modelling and measurement of flow ripple with emphasis on analyses with theoretical techniques.
A simulation model of a piston pump has been used in this investigation. Simulation has proved to be a useful tool for optimization of the portplate geometry and for developing new methods to reduce pump flow ripple. Different conventional methods are compared with unconventional ones. A new method which gives very low flow ripple over a large operating range is included in this study.
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Authors
- Maria E. Pettersson - Division of Fluid Power Technology, Department of Mechanical Engrg., Linköping University
- Kenneth G. Weddfelt - Division of Fluid Power Technology, Department of Mechanical Engrg., Linköping University
- Jan-Ove S. Palmberg - Division of Fluid Power Technology, Department of Mechanical Engrg., Linköping University
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Citation
Pettersson, M., Weddfelt, K., and Palmberg, J., "Methods of Reducing Flow Ripple from Fluid Power Pumps - a Theoretical Approach," SAE Technical Paper 911762, 1991, https://doi.org/10.4271/911762.Also In
References
- Weddfelt, K. Pettersson, M. Palmberg, J-O. “Methods of Reducing Flow Ripple from Fluid Power Piston Pumps - an Experimental Approach” International Off-Highway & Powerplant Congress Sept. 9 12 1991 Milwaukee, USA
- Johnston, D. N. Edge, K.A. “Simulation of the pressure ripple characteristics of hydraulic circuits” Proc. Instn. Mech. Engrs. 203 1989
- Edge K.A. Liu Y. “Reduction of piston pump pressure ripple” Proc. 2nd International Conf on Fluid Power Transmission and Control Hangzhou, P.R. China March 20 - 22 1989 779 784
- Palmberg J-O. “Modelling of Flow Ripple from Fluid Power Piston Pumps” 2nd Bath International Fluid Power Workshop 21st - 22nd Sept 1989 University of Bath England