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Experimental investigation of different active noise control concepts applied to a passenger car equipped with an active windshield

Misol, Malte and Algermissen, Stephan and Monner, Hans Peter (2012) Experimental investigation of different active noise control concepts applied to a passenger car equipped with an active windshield. Journal of Sound and Vibration, 331, 10, pp. 2209-2219. Elsevier. DOI: 10.1016/j.jsv.2012.01.001 ISSN 0022-460X

Full text not available from this repository.

Abstract

The main purpose of this work is the implementation and experimental investigation of different active structural acoustic control (ASAC) concepts for the reduction of interior noise in an automobile passen-ger compartment. For the control experiments, a medium-class test car was used, which had been equipped with an active windshield. The active windshield consists of the serialproduction laminated glass pane augmented with piezoceramic patch-transducers applied to theblackened rim of the wind-shield. A multi-reference test provided measurement data for the identification of a local discrete-time state-space model (SSM). The subsequent acquisition of frequency response functions (FRF) by way of using the same actuators but measuring on a much finer grid provided the database for the formulation of a least-squares problem to derive a global system model. Based on the local and global discrete-time SSMs, different controllers were designed and experimentally realized. The comparison of the vibration levels in open- and closed-loop showed a global reduction of 5 dB to 7 dB in the acoustically relevant frequency band containing the second and third structural resonance of the windshield system. The occurrence of complex operational deflection shapes (ODS) was identified as the main limitation con-cerning the disturbance rejection of the active system. The acoustic performance of the ASAC system is reflected in a reduction up to 15 dB in sound pressure level (SPL).

Item URL in elib:https://elib.dlr.de/75304/
Document Type:Article
Title:Experimental investigation of different active noise control concepts applied to a passenger car equipped with an active windshield
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Misol, MalteUNSPECIFIEDUNSPECIFIED
Algermissen, StephanUNSPECIFIEDUNSPECIFIED
Monner, Hans PeterUNSPECIFIEDUNSPECIFIED
Date:2012
Journal or Publication Title:Journal of Sound and Vibration
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume: 331, 10
DOI :10.1016/j.jsv.2012.01.001
Page Range:pp. 2209-2219
Publisher:Elsevier
ISSN:0022-460X
Keywords:ASAC; H2-Control; FxLMS
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:V SH - Verbesserung der Sicherheit im Verkehr (old)
DLR - Research area:Transport
DLR - Program:V SH - Verbesserung der Sicherheit im Verkehr
DLR - Research theme (Project):V - Aktive Vibrations- und Lärmreduzierung an Fahrzeugen (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Adaptronics
Deposited By: Böhringer-Thelen, Isolde
Deposited On:23 Mar 2012 09:45
Last Modified:10 Jan 2019 15:49

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