Dynamic Considerations in the Application of Hydraulic Motors

Format:

Conference/Event

Author/Creator:

Klimaszewski, Richard A., author.

Conference Name:

National Farm, Construction, Industrial Machinery, Powerplant Meeting (1972-09-11 : Milwaukee, Wisconsin, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1972

Summary:

Speed and pressure response of a hydraulic motor to changes in flow (stroking a directional valve) is predicted for typical mobile hydraulic circuits. A simplified approach was used to derive the equations for a system consisting of a pump, directional valve, and a motor with an inertia load. The speed and pressure response to increases in flow was studied by solving the equations on an analog computer.Expressions for the natural frequency, ωn, and the damping ratio, ζ, were written in terms of motor displacement, load inertia, system compliance, and system leakage coefficient. The response to increases in flow is presented in terms of the damping ratio.The response to decreases in flow is discussed for directional valves with both open and closed cylinder portraitsThe effects of the simplifying assumptions of the valve stroking rate and of the valve cylinder port configuration are discussed

Notes:

Vendor supplied data

Publisher Number:

720768

Access Restriction:

Restricted for use by site license