Experimental study of active vibration suppression of flexible structure using modular control patch

This paper presents experimental results of vibration suppression of a flexible structure using a miniaturized digital controller, called modular control patch (MCP). The MCP employs a TI-C30 digital signal processor and was developed by TRW for the United States Air Force for future space vibration...

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Vydané v:1998 IEEE Aerospace Conference Proceedings (Cat. No.98TH8339) Ročník 1; s. 189 - 201 vol.1
Hlavní autori: Gangbing Song, Schmidt, S.P., Agrawal, B.N.
Médium: Konferenčný príspevok..
Jazyk:English
Vydavateľské údaje: IEEE 1998
Predmet:
Aluminum
Digital control
Digital signal processors
Feedback
Flexible structures
Force sensors
Signal processing algorithms
Strain control
Structural beams
Vibration control
ISBN:0780343115, 9780780343115
ISSN:1095-323X
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Shrnutí:This paper presents experimental results of vibration suppression of a flexible structure using a miniaturized digital controller, called modular control patch (MCP). The MCP employs a TI-C30 digital signal processor and was developed by TRW for the United States Air Force for future space vibration control. In this research, the MCP is used to implement different control algorithms for vibration suppression of a cantilevered aluminum beam with piezoceramic sensors and actuators. Positive position feedback (PPF) control, strain rate feedback (SRF) control, and their combinations were implemented. Experiments found that PPF control is most effective for single-mode vibration suppression, and two PPF filters in parallel are most effective for multi-mode vibration suppression. Further experiments demonstrated the robustness of PPF control. PPF can achieve effective vibration suppression when there is a 20% error in modal frequency.
ISBN:0780343115
9780780343115
ISSN:1095-323X
DOI:10.1109/AERO.1998.686818