Morphing optimization of constrained layer damping patches in vehicle structures

Mariam Jaber, Helmut Schneeweiss, Joachim Bös, Tobias Melz

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

Passive constrained layer damping (PCLD) treatment is an effective means to reduce vibrations and sound radiation in the automotive industry. The use of PCLD patches on the entire structure surface is not an acceptable treatment due to the damping effect not significantly improving in comparison with an effective partial damping treatment. In addition, covering the entire surface with damping material increases the weight of the car to the point of poor system performance. This paper investigates optimal damping distribution with the geometry and location of the damping patches as design variables. To achieve an optimal damping distribution, a numerical model based on finite element analysis and morphing optimization is implemented. This research provides useful general guidelines for the passive control of noise and vibration design in vehicle structures.

Original languageEnglish
Title of host publication22nd International Congress on Sound and Vibration, ICSV 2015
PublisherInternational Institute of Acoustics and Vibrations
ISBN (Electronic)9788888942483
StatePublished - 2015
Externally publishedYes
Event22nd International Congress on Sound and Vibration, ICSV 2015 - Florence, Italy
Duration: 12 Jul 201516 Jul 2015

Publication series

Name22nd International Congress on Sound and Vibration, ICSV 2015

Conference

Conference22nd International Congress on Sound and Vibration, ICSV 2015
Country/TerritoryItaly
CityFlorence
Period12/07/1516/07/15

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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