Optimal design of electromechanical actuators for active loads

Author

Haskew, Tim A. ; Schinstock, Dale E.

Author_Institution

Coll. of Eng., Alabama Univ., Tuscaloosa, AL, USA

Volume

3

Issue

2

fYear

1998

fDate

6/1/1998 12:00:00 AM

Firstpage

129

Lastpage

137

Abstract

The proliferation of electromechanical actuation promises reduced maintenance requirements and cost, improved efficiency and reliability, and more environmentally friendly operation. Within this paper, the issue of optimal component selection for actuator design is addressed. Optimality is defined as an engineering trade-off concerning power transfer to the load, efficiency, and torque demand. An equivalent circuit for the actuator/active load system is developed and represented in the phasor domain. Sinusoidal steady-state techniques are employed for system analysis and definition of the conditions for optimality in applications where load force and velocity profiles are known. The actuator application of thrust vector control on the Space Shuttle main engine is specifically addressed

Keywords

actuators; aerospace control; control system analysis; minimisation; space vehicles; Space Shuttle main engine; active loads; electromechanical actuators; environmentally friendly operation; load force; optimal design; power transfer; sinusoidal steady-state techniques; thrust vector control; torque demand; velocity profiles; Actuators; Costs; Equivalent circuits; Maintenance; Power engineering and energy; Power system reliability; Reliability engineering; Space shuttles; Steady-state; Torque;

fLanguage

English

Journal_Title

Mechatronics, IEEE/ASME Transactions on

Publisher

ieee

ISSN

1083-4435

Type

jour

DOI

10.1109/3516.686681

Filename

686681