Continuous laser scanning of a lightweight membrane with monotone and multi-tone excitation techniques

Pablo A. Tarazaga, Dario Di Maio, Nima Ameri, David J. Ewins

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

4 Citations (Scopus)

Abstract

Given the lightweight and sensitive nature of gossamer structures, applying non-intrusive and fast testing techniques can be beneficial during either the design stage or in operational conditions. This paper presents the feasibility of using continuous scanning techniques to characterize the operational deflection shapes of a circular lightweight membrane. The experimental results are also compared to an impedance-based model of a circular membrane that takes into account energy loss due to radiation to the far field. The work herein also describes a new technique that uses a multi-tone excitation together with continuous scanning in order to obtain all operation deflection shapes in one single attempt.

Original languageEnglish
Title of host publication53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc. (AIAA)
ISBN (Print)9781600869372
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference 2012 - Honolulu, United States
Duration: 23 Apr 201226 Apr 2012
Conference number: 53

Publication series

NameCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
ISSN (Print)0273-4508

Conference

Conference53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference 2012
CountryUnited States
CityHonolulu
Period23/04/1226/04/12

Keywords

  • Acoustic radiation
  • Continuous laser doppler vibrometry
  • Gossamer structures
  • Impedance modeling
  • Modal testing
  • Multi- tone excitation

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