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Reduction of interior noise in an automobile passenger compartment by means of active structural acoustic control (ASAC)

Misol, Malte and Algermissen, Stephan and Monner, Hans Peter (2012) Reduction of interior noise in an automobile passenger compartment by means of active structural acoustic control (ASAC). 5. Symposium Faszination Karosserie und Fahrzeugkonzepte, 13. - 14. März 2012, Wolfsburg, Deutschland.

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Abstract

This research work deals with the reduction of windshield-vibration-induced interior noise in an automobile passenger compartment by means of active structural acoustic control (ASAC). The investigations are based on former work conducted within the framework of the EU-IP InMAR and make use of an existing test-car equipped with an active windshield. The active windshield consists of the passive structure augmented with optimally placed piezo-ceramic transducers. Main focus of the subsequent work was the development and evaluation of different control strategies (H2, FxLMS) designed with regard to either local or global performance metrics. Due to the lack of a roller test bench, the structural excitation was realized by an electrodynamic exciter (shaker) lo-cated at the roof brace between the A-pillars. By this choice it was possible to emulate the struc-tural excitation of the windshield due to rolling and motor force harmonics. In order to achieve a fully structurally integrated sensing and actuation of the windshield vibration the exclusive use of optimally placed piezoelectric transducers was intended. Though, in the experiments, sensing was performed by means of acceleration sensors facilitating a calibration of structural sensor- and Scanning Laser Doppler Vibrometer (SLDV) data.

Item URL in elib:https://elib.dlr.de/75308/
Document Type:Conference or Workshop Item (Paper)
Title:Reduction of interior noise in an automobile passenger compartment by means of active structural acoustic control (ASAC)
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Misol, MalteUNSPECIFIEDUNSPECIFIED
Algermissen, StephanUNSPECIFIEDUNSPECIFIED
Monner, Hans PeterUNSPECIFIEDUNSPECIFIED
Date:March 2012
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Keywords:Active Structural Acoustic Control (ASAC), Active Windshield, Automobile, Experiments, Feedback Control, Feedforward Control
Event Title:5. Symposium Faszination Karosserie und Fahrzeugkonzepte
Event Location:Wolfsburg, Deutschland
Event Type:national Conference
Event Dates:13. - 14. März 2012
HGF - Research field:Aeronautics, Space and Transport, Aeronautics, Space and Transport
HGF - Program:Aeronautics, Aeronautics
HGF - Program Themes:L VU - Air Traffic and Environment (old), other
DLR - Research area:Aeronautics, Aeronautics
DLR - Program:L VU - Air Traffic and Environment, L - no assignment
DLR - Research theme (Project):L - Quiet Air Traffic (old), L - no assignment (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Adaptronics
Deposited By: Böhringer-Thelen, Isolde
Deposited On:23 Mar 2012 10:24
Last Modified:23 Mar 2012 10:24

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