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Methods for Measuring the Speed of Sound in the Fluid in Fluid Transmission Pipes
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 11, 2000 by SAE International in United States
Annotation ability available
A summary of several existing methods for measuring the speed of sound in the fluid in a pipe is presented first. Their basic principles, advantages and limitations are compared. Those methods are good enough for the fluid in rigid pipes, but not for the fluid in a compliant fluid pipe system. The paper proposes an accurate measuring method using a system for determining the transfer matrix parameters of fluid power components. This method can provide satisfying results for the fluid contained not only in a rigid pipe but also in other softer/deformable pipes, such as flexible rubber hoses.
CitationYu, J. and Kojima, E., "Methods for Measuring the Speed of Sound in the Fluid in Fluid Transmission Pipes," SAE Technical Paper 2000-01-2618, 2000, https://doi.org/10.4271/2000-01-2618.
SAE 2000 Transactions Journal of Commercial Vehicles
Number: V109-2; Published: 2001-09-15
Number: V109-2; Published: 2001-09-15
- Edge K.A. Johnston D.N. “The ‘Secondary Source’ Method for the Measurement of Pump Pressure Ripple Characteristics, Part 2: Experimental Results,” Proc. Instn. Mech. Engrs 204 41 46 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
- Kojima E. Yu J. Ichiyanagi T. “Experimental Determining and Theoretical Predicting of Source Flow Ripples Generated by Fluid Power Piston Pumps.” Proceedings of the 2000 SAE International Off-Highway & Powerplant Congress & Exposition Milwaukee, USA 2000
- 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
- Johnston D. N. Edge K. A. “In-Situ Measurement of the Wavespeed and Bulk Modulus in Hydraulic Lines.” Proc. Instn. Mech. Engrs 205 191 197 1991
- “Hydraulic Fluid Power - Determination of the Fluid Borne Noise Characteristics of Components and Systems, Part 1: Measurement of the Speed of Sound in a Fluid.”
- Kojima E. Ichiyanagi T. “Experimental Investigation on the Accuracy of the ‘Measuring Method of the Speed of Sound in the Fluid in a Rigid Pipe’ Described in ISO/CD15086-2.” Hydraulics & Pneumatics 1999
- Yu J. et al “Experimental Evaluation for Fluidborne Noise Attenuation in Tuning Cables and Hoses of Automotive Power Steering Hydraulic Systems.” Proceedings of the 1999 SAE Noise and Vibration Conference Traverse, Michigan 342 347 1999
- Yu J. et al “Research on the Dynamic Model of Effective Bulk Modulus of Elasticity of Hydraulic Oil.” Proceedings of the 1 st International Symposium on FPTC Beijing, China 606 610 1991
- Lung T. Y. Doige A. G. “A Time-Averaging Transient Testing Method for Acoustic Properties of Piping Systems and Mufflers with Flow,” J. Acoust. Soc. Am. 73 3 867 876 1983
- To C. W. S. Doige A. G. “A Transient Testing Technique for the Determination of Matrix Parameters of Acoustic System, 1: Theory and Principles,” J. Sound Vib. 62 2 207 222 1979
- Kojima E. “Experimental Determination of the Transfer Matrix Paramters for Hydraulic Silencers and Considerations of the Test Method Standard for Assessment of their Performance.” 7 th Bath International Fluid Power Workshop on Components and Systems 1994
- Johnston D. N. Longmore D.K. Drew J. E. “A Technique for the Measurement of the Transfer Matrix Characteristics of Two Port Hydraulic Components.” ASME Winter Annual Meeting Chicago 1994
- Yu J. Kojima E. “Wave Propagation in Fluids Contained in Finite-Length Anisotropic Viscoelastic Pipes,” J. Acoust. Soc. Am. 104 6 3227 3235 1998