Electricity: motive power systems – Positional servo systems – With stabilizing features
Patent
1990-01-26
1991-04-30
Ip, Paul
Electricity: motive power systems
Positional servo systems
With stabilizing features
343766, 343759, 318 49, 318 46, B64G 138
Patent
active
050121707
ABSTRACT:
The mechanical stabilization system for a support comprises a working rotor mounted on the support by means of bearings and fixed to a working member having at least one parameter associated with the rotation of the working member and which is variable as a function of time. A reaction rotor is concentric with the working rotor and is mounted on the working rotor by means of bearings and is fixed to a reaction inertia member. A first servo-controlled electric motor is interposed between the working rotor and the reaction rotor and serves to drive the working rotor and the reaction rotor in opposite directions of rotation. A low power second electric motor is interposed between the working rotor and the support and is servo-controlled in such a manner as to reposition the reaction rotor and correct for drift in the correcting motion of the reaction rotor, due in particular to friction in the bearings.
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Ip Paul
Societe Europeenne de Propulsion
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