Affiliation:
1. Mechanical and Aerospace Engineering, University of Missouri—Columbia, Columbia, MO 65211
Abstract
Traditionally, the theoretical torque on the input shaft of a hydrostatic pump has been determined using a macroscopic “power-in, power-out” approach that neglects the time-varying aspects of this quantity and the compressibility of the hydraulic fluid within the circuit. In contrast to the traditional approach, this research analyzes and sums the basic forces within the machine to compute the instantaneous torque exerted on the shaft. It is shown that the instantaneous torque repeatedly varies by 1.5 percent of its maximum value and that resonant frequencies of the pump occur at even multiples of the “piston-pass” frequency. Furthermore, an integral average of the instantaneous torque is performed and shown to deviate by a maximum of 3 percent from the traditional method of computing this quantity.
Subject
Computer Science Applications,Mechanical Engineering,Instrumentation,Information Systems,Control and Systems Engineering
Reference7 articles.
1. Bolinger, J. W., 1982, “Considerations for Hydrostatic System Noise Control,” Society of Automotive Engineers International Off-Highway Meeting and Exposition, Milwaukee, WI.
2. Edge
K. A.
, and DarlingJ., 1989, “The Pumping Dynamics of Swash Plate Piston Pumps,” ASME JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL, Vol. 111, pp. 307–12.
3. Manring, N. D., and R. E. Johnson, 1994, “Swivel Torque with a Variable-Displacement Pump,” 46th National Conference on Fluid Power, Anaheim, CA.
4. Pang
Z.
, WenjieZ., and JingwuS., 1993, “The Study of Hydrostatic Lubrication of the Slipper in a High-Pressure Plunger Pump,” Tribology Transactions, Vol. 36, pp. 316–20.
5. Puormovahed, A., 1992, “Uncertainty in the Efficiencies of a Hydrostatic Pump/Motor,” Winter Annual Meeting of the American Society of Mechanical Engineers, Anaheim, CA.
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