Hybrid Testing of a Cantilever Beam with Two Controlled Degrees of Freedom

Alessandra Vizzaccaro*, Sandor Beregi, David Barton, Simon Neild

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

1 Citation (Scopus)

Abstract

Hybrid testing of a cantilever beam with two controlled degrees of freedom at the interface between virtual and physical structures is performed in this work. To circumvent instabilities caused by delays in the transfer system and inaccuracies caused by error in the characterization of the transfer system, an alternative open-loop method based on harmonic balance method is adopted that is suitable for steady-state motion. The periodic solution that ensures synchronous motion of the interface between the virtual and the physical structure is found via quasi-Newton iterations. Results show a strong agreement between the two sides of the interface, thus proving the capabilities of the method in dealing with continuous structures with two controlled degrees of freedom.

Original languageEnglish
Title of host publicationDynamic Substructures, Volume 4 - Proceedings of the 40th IMAC, A Conference and Exposition on Structural Dynamics, 2022
EditorsMatthew Allen, Walter D’Ambrogio, Dan Roettgen
PublisherSpringer
Pages115-117
Number of pages3
ISBN (Print)9783031040931
DOIs
Publication statusPublished - 2023
Event40th IMAC, A Conference and Exposition on Structural Dynamics, 2022 - Orlando, United States
Duration: 7 Feb 202210 Feb 2022

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652

Conference

Conference40th IMAC, A Conference and Exposition on Structural Dynamics, 2022
Country/TerritoryUnited States
CityOrlando
Period7/02/2210/02/22

Bibliographical note

Funding Information:
This work is funded by the Digital twins for improved dynamic design (EP/R006768/1) EPSRC grant. The authors are thankful

Publisher Copyright:
© 2023, The Society for Experimental Mechanics, Inc.

Structured keywords

  • Engineering Mathematics Research Group

Keywords

  • Harmonic balance method
  • Hybrid testing
  • Substructuring
  • Wing-like structures

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