Optimal coupling ratio selection for flexible appendage actuators

Optimal coupling ratio selection for flexible appendage actuators

Articulated and flexible spacecraft appendages requiring precise pointing usually depend on rotary, gear-coupled actuators that are driven by dc servomotors or stepper motors; these are connected to backlashless gear trains with high coupling ratios. Existing methods for selecting gear ratios that m...

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Veröffentlicht in:Journal of guidance, control, and dynamics control, and dynamics, 1990-07, Vol.13 (4), p.754-755
1. Verfasser: STETSON, JOHN B.
Format: Artikel
Sprache:eng
Schlagworte:
Actuators
Aeronautics
Engineers
Laplace transforms
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container_title Journal of guidance, control, and dynamics
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creator STETSON, JOHN B.
description Articulated and flexible spacecraft appendages requiring precise pointing usually depend on rotary, gear-coupled actuators that are driven by dc servomotors or stepper motors; these are connected to backlashless gear trains with high coupling ratios. Existing methods for selecting gear ratios that minimize the power dissipated in moving a rigid, fixed base load are presently extended to simultaneously minimize both the required actuator power and the vibrational coupling between a rigid-body spacecraft and a flexible load, with one (generally damped) torsional degree-of- freedom. (O.C.)
doi_str_mv 10.2514/3.25396
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subjects Actuators
Aeronautics
Engineers
Laplace transforms
title Optimal coupling ratio selection for flexible appendage actuators
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