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Proceedings Paper

Small and lightweight power amplifiers
Author(s): Qamar A. Shams; Kevin N. Barnes; Robert Lee Fox; Robert W. Moses; Robert G. Bryant; Paul C. Robinson; Mir Shirvani
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Paper Abstract

The control of u wanted structural vibration is implicit in most of NASA's programs. Currently several approaches to control vibrations in large, lightweight, deployable structures and twin tail aircraft at high angles of attack are being evaluated. The Air Force has been examining a vertical tail buffet load alleviation system that can be integrated onboard an F/A-18 and flown. Previous wind tunnel and full-scale ground tests using distributed actuators have shown that the concept works; however, there is insufficient rom available onboard an F/A-18 to store current state-of- the-art system components such as amplifiers, DC-to-DC converter and a computer for performing vibration suppression. Sensor processing, power electronics, DC-to-DC converters, and control electronics that may be collocated with distributed actuators, are particularly desirable. Such electronic system would obviate the need for complex, centralized, control processing and power distribution components that will eliminate the weight associated with lengthy wiring and cabling networks. Several small and lightweight power amplifiers ranging from 300V pp to 650V pp have been designed using off the shelf components for different applications. In this paper, the design and testing of these amplifiers will be presented under various electrical loads.

Paper Details

Date Published: 9 July 2002
PDF: 9 pages
Proc. SPIE 4698, Smart Structures and Materials 2002: Industrial and Commercial Applications of Smart Structures Technologies, (9 July 2002); doi: 10.1117/12.475077
Show Author Affiliations
Qamar A. Shams, NASA Langley Research Ctr. (United States)
Kevin N. Barnes, NASA Langley Research Ctr. (United States)
Robert Lee Fox, NASA Langley Research Ctr. (United States)
Robert W. Moses, NASA Langley Research Ctr. (United States)
Robert G. Bryant, NASA Langley Research Ctr. (United States)
Paul C. Robinson, NASA Langley Research Ctr. and SAIC (United States)
Mir Shirvani, NASA Langley Research Ctr. and New River Community College (United States)


Published in SPIE Proceedings Vol. 4698:
Smart Structures and Materials 2002: Industrial and Commercial Applications of Smart Structures Technologies
Anna-Maria Rivas McGowan, Editor(s)

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