Digital Flight Control Actuation

Document Number: 951992

Date Published: September 1995

Author(s):
Alfonso Escobosa - Interactive Control Technologies

Abstract:
A two part description of two digital-hydrostatic servoactuators is presented. The first servoactuator described is based on a digital valve that can be hydraulically or pneumatically powered. The actuator is incremented by discrete volumes of fluid discharged by the valve at a frequency and polarity dependent on the servo error magnitude and sign.

The basic principle of operation of the fluid-powered servoactuator applies to an electrically-powered one. In this version, however, the discrete flow is derived from a digitally controlled pump driven by a constant speed motor. This part of the paper includes a preliminary layout of a dual power-hinge servoactuator which shows that a compact, fully integrated module is feasible.

File Size: 1321K
Product Status: In Stock

See other papers presented at Aerotech Conference & Exposition, September 1995, Los Angeles, CA, USA, Session: Aerotech Conference & Exposition

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