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Decentralized structural acoustic control of a launch vehicle payload fairing

Decentralized structural acoustic control of a launch vehicle payload fairing
Decentralized structural acoustic control of a launch vehicle payload fairing
The development of smart structures and active noise and vibration control technologies promised to revolutionize the design, construction and, most importantly, the performance of many complex engineering. However, the early promise of these technologies has not been realized in large-scale systems primarily because of the excessive complexity, cost, and weight associated with centralized control systems. Now, recent developments in MEMS sensors and actuators, along with networked embedded processor technology, have opened new research avenues in decentralized controls. Such a control system consists of numerous nodes, possessing limited computational capability, sensors, and actuators. Each of these nodes is also capable of communicating with other nodes via a wired or wireless network. This results in a dramatic shift in the control system paradigm from that of a single, centralized computer to that of numerous decentralized, networked processors. This work describes the application of such a control system to the reduction of structural acoustic radiation in a launch vehicle payload fairing. A JAVA-based simulation tool is employed to simulate the interactions of the physical system with the networked embedded controllers. Results will indicate the potential for such a control system as well as the limitations imposed by the networked embedded processor hardware.
Acoustical Society of America
Frampton, Kenneth D.
94506b25-ed47-4216-8795-9f33a3761cfc
Frampton, Kenneth D.
94506b25-ed47-4216-8795-9f33a3761cfc

Frampton, Kenneth D. (2002) Decentralized structural acoustic control of a launch vehicle payload fairing. In Proceedings of the 143rd Meeting of the Acoustical Society of America. Acoustical Society of America..

Record type: Conference or Workshop Item (Paper)

Abstract

The development of smart structures and active noise and vibration control technologies promised to revolutionize the design, construction and, most importantly, the performance of many complex engineering. However, the early promise of these technologies has not been realized in large-scale systems primarily because of the excessive complexity, cost, and weight associated with centralized control systems. Now, recent developments in MEMS sensors and actuators, along with networked embedded processor technology, have opened new research avenues in decentralized controls. Such a control system consists of numerous nodes, possessing limited computational capability, sensors, and actuators. Each of these nodes is also capable of communicating with other nodes via a wired or wireless network. This results in a dramatic shift in the control system paradigm from that of a single, centralized computer to that of numerous decentralized, networked processors. This work describes the application of such a control system to the reduction of structural acoustic radiation in a launch vehicle payload fairing. A JAVA-based simulation tool is employed to simulate the interactions of the physical system with the networked embedded controllers. Results will indicate the potential for such a control system as well as the limitations imposed by the networked embedded processor hardware.

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More information

Published date: 2002
Additional Information: Invited paper
Venue - Dates: 143rd Meeting of the Acoustical Society of America, Pittsburgh, USA, 2002-06-02 - 2002-06-06

Identifiers

Local EPrints ID: 42266
URI: http://eprints.soton.ac.uk/id/eprint/42266
PURE UUID: b5f59562-2a53-486e-9935-de5683218bb8

Catalogue record

Date deposited: 30 Nov 2006
Last modified: 11 Dec 2021 16:08

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Contributors

Author: Kenneth D. Frampton

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