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An adaptive negative capacitance shunt network for increasing performance and robustness in terms of noise and vibration attenuation

Pohl, Martin and Monner, Hans Peter (2016) An adaptive negative capacitance shunt network for increasing performance and robustness in terms of noise and vibration attenuation. In: Actuator 2016 Conference Proceedings, pp. 148-151. Actuator 2016, 12.-15. Jun 2016, Bremen. ISBN ISBN 978-3-933339-26-3.

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Abstract

Due to its broadband performance, the negative capacitance shunt can be used for damping multimode systems with varying eigenfrequencies. They are usually built with operational amplifiers and passive components. This setup is sufficient for laboratory tests, but in real applications, this rather simple setup cannot be used, due to a tradeoff between efficient damping and the risk of instability. Therefore an adaptive negative capacitance circuit is presented in this paper, which is developed for automatically tuning the capacitance ratio to the appropriate value. Tests at a beam structure show, that both better damping and the avoidance of saturation effects and instabilities are achieved.

Item URL in elib:https://elib.dlr.de/104704/
Document Type:Conference or Workshop Item (Speech)
Title:An adaptive negative capacitance shunt network for increasing performance and robustness in terms of noise and vibration attenuation
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Pohl, MartinMartin.Pohl (at) dlr.deUNSPECIFIED
Monner, Hans PeterHans.Monner (at) dlr.deUNSPECIFIED
Date:2016
Journal or Publication Title:Actuator 2016 Conference Proceedings
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 148-151
ISBN:ISBN 978-3-933339-26-3
Status:Published
Keywords:negative capacitance, piezoelectric shunt damping, noise and vibration attenuation
Event Title:Actuator 2016
Event Location:Bremen
Event Type:international Conference
Event Dates:12.-15. Jun 2016
Organizer:Messe Bremen
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: Pohl, Martin
Deposited On:18 Jul 2016 09:04
Last Modified:18 Jul 2016 09:04

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