This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
The Measurement of Positive Displacement Pump and Motor Noise Using Sound Intensity Techniques
Annotation ability available
Sector:
Language:
English
Abstract
The noise levels generated by a variable capacity axial piston pump and a fixed capacity axial piston motor have been measured using Sound Intensity techniques; no special acoustic test environment was employed. The experimental procedures followed, as closely as possible, draft International Standard ISO/DIS 9614-4. Because the machines were mounted on existing test stands it was found difficult to comply completely with the requirements laid down in the draft Standard.
Typical test results are presented showing that pump overall Sound Pressure levels increase significantly with increasing delivery pressure. The effect of discharge pipe length on pump noise levels is relatively small. From the motor noise tests, it was found that variations in speed were much more important than load.
The work has highlighted the need for the development of Sound Intensity procedures specifically concerned with fluid power pumps and motors.
Authors
Citation
Ngah, Z. and Edge, K., "The Measurement of Positive Displacement Pump and Motor Noise Using Sound Intensity Techniques," SAE Technical Paper 911760, 1991, https://doi.org/10.4271/911760.Also In
References
- hydraulic fluid power - test code for the determination of airborne noise levels 1990
- hydraulic fluid power - test code for the determination of airborne noise levels 1990
- hydraulic fluid power - test code for the determination of airborne noise levels 1990
- Acoustics - determination of Sound Power levels using Sound Intensity 1989
- Fahy, F.J. Sound Intensity Elsevier London 1989
- Gade, S Ginn, K.B. Instrumentation for Standardized Sound Intensity Indicators Internoise '88 I 269 271
- Hubner, G. The use of sound field indicators for the measurement of the sound intensity determined power Internoise '89 II 1015 1020
- Gade, S. Temporal variability of intensity measurements Internoise '89 II 991 994
- Tao, Z Wallis, A.D. A new design for a sound intensity measurement system Internoise '89 II 947 950
- Rozwadowski, A Pepin, H. Acoustic intensity measurement with a portable personal computer Internoise '89 II 969 972