NON-INTRUSIVE ACOUSTICAL DIAGNOSTICS FOR APPRAISING PUMP CONTAMINANT WEAR 770770
This paper discusses a non-intrusive acoustical diagnostic technique for assessing the wear and associated flow degradation of hydraulic pumps. The technique utilizes near-field airborne noise measurements to determine the acoustical energy emitted by the pump at various pumping harmonics. Ratios of the pumping harmonic noise levels are transformed into a Noise Wear Index. Data are presented which show the correlation between the Noise Wear Index and gear pump contaminant induced wear as indicated by a degradation of pump flow performance. The use of the Noise Wear Index for diagnosing system infirmities and improving system reliability is discussed.
Citation: Maroney, G. and Tessmann, R., "NON-INTRUSIVE ACOUSTICAL DIAGNOSTICS FOR APPRAISING PUMP CONTAMINANT WEAR," SAE Technical Paper 770770, 1977, https://doi.org/10.4271/770770. Download Citation
Author(s):
G. E. Maroney, R. K. Tessmann
Affiliated:
Fluid Power Research Center, Oklahoma State University
Pages: 15
Event:
1977 SAE International Off-Highway and Powerplant Congress and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 1977 Transactions-V86-A
Related Topics:
Pumps
Wear
Noise
Acoustics
Gears
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »
