Measurement of Fluid Bulk Modulus Using Impedance of Hydraulic Circuits 1999-01-0942
Certain properties of fluid change with pressure, temperature and other operating system conditions. In automotive hydraulic systems driven by pumps, air usually enters the system as dissolved matter or very small bubbles. Such air will change certain properties of the fluid like the density, bulk modulus and viscosity. Measuring these properties for evaluating system performance in real operating conditions is one of the big challenges that face engineers.
In this paper, the bulk modulus of certain power steering fluids is measured using standard impedance and flow ripple tests for pumps. The effects of pressure, temperature and speed on the bulk modulus are studied thoroughly.
Citation: Qatu, M., Dougherty, M., and Smid, G., "Measurement of Fluid Bulk Modulus Using Impedance of Hydraulic Circuits," SAE Technical Paper 1999-01-0942, 1999, https://doi.org/10.4271/1999-01-0942. Download Citation
Author(s):
Mohamad S. Qatu, Mike L. Dougherty, G. Edzko Smid
Affiliated:
DANA Corporation, Oakland University
Pages: 6
Event:
International Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 1999 Transactions - Journal of Passenger Cars-V108-6
Related Topics:
Power steering
Pumps
Pressure
SAE MOBILUS
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