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Hierarchical, decentralized control system for large-scale smart-structures

Algermissen, Stephan and Fröhlich, Tim and Monner, Hans Peter (2014) Hierarchical, decentralized control system for large-scale smart-structures. Smart Materials and Structures. Institute of Physics (IOP) Publishing. doi: 10.1088/0964-1726/23/8/085037. ISSN 0964-1726.

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Active control of sound and vibration has gained much attention in all kinds of industries in the past decade. Future prospects for maximizing airline passenger comfort are especially promising. The objectives of recent research projects in this area are the reduction of noise transmission through thin walled structures such as fuselages, linings or interior elements. Besides different external noise sources, such as the turbulent boundary layer, rotor or jet noise, the actuator and sensor placement as well as different control concepts are addressed. Mostly, the work is focused on a single panel or section of the fuselage, neglecting the fact that for effective noise reduction the entire fuselage has to be taken into account. Nevertheless, extending the scope of an active system from a single panel to the entire fuselage increases the effort for control hardware dramatically. This paper presents a control concept for large structures using distributed control nodes. Each node has the capability to execute a vibration or noise controller for a specific part or section of the fuselage. For maintenance, controller tuning or performance measurement, all nodes are connected to a host computer via Universal Serial Bus (USB). This topology allows a partitioning and distributing of tasks. The nodes execute the low-level control functions. High-level tasks like maintenance, system identification and control synthesis are operated by the host using streamed data from the nodes. By choosing low-price nodes, a very cost effective way of implementing an active system for large structures is realized. Besides the system identification and controller synthesis on the host computer, a detailed view on the hardware and software concept for the nodes is given. Finally, the results of an experimental test of a system running a robust vibration controller at an active panel demonstrator are shown.

Item URL in elib:https://elib.dlr.de/90415/
Document Type:Article
Title:Hierarchical, decentralized control system for large-scale smart-structures
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Date:August 2014
Journal or Publication Title:Smart Materials and Structures
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Publisher:Institute of Physics (IOP) Publishing
Keywords:smart structures, robust control, hierarchical control
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems and Cabin (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Adaptronics
Deposited By: Böhringer-Thelen, Isolde
Deposited On:11 Sep 2014 16:52
Last Modified:29 Nov 2023 08:22

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