Research and development of an air-puff excitation system for lightweight structures

Halkon, B; Rauter, A; Oberst, S; Marburg, S

Research and development of an air-puff excitation system for lightweight structures

Halkon, B

Rauter, A Oberst, S

Marburg, S

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Publication Type:: Conference Proceeding
Citation:: 8th IOMAC - International Operational Modal Analysis Conference, Proceedings, 2019, pp. 627 - 634
Issue Date:: 2019-01-01

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Field	Value	Language
dc.contributor.author	Halkon, B https://orcid.org/0000-0001-5459-2329	en_US
dc.contributor.author	Rauter, A	en_US
dc.contributor.author	Oberst, S https://orcid.org/0000-0002-1388-2749	en_US
dc.contributor.author	Marburg, S	en_US
dc.date.issued	2019-01-01	en_US
dc.identifier.citation	8th IOMAC - International Operational Modal Analysis Conference, Proceedings, 2019, pp. 627 - 634	en_US
dc.identifier.isbn	9788409049004	en_US
dc.identifier.uri	http://hdl.handle.net/10453/130917
dc.description.abstract	© 2019 International Group of Operational Modal Analysis. Lightweight, thin-walled structures appear in numerous engineering and natural structures. Due to their sensitivity, vibration excitation by, now traditional, contacting techniques, such as modally-tuned impact hammers or electrodynamic shakers, to investigate their dynamics is challenging since it typically adds substantial mass and/or stiffness at the excitation location. The research presented in this article, therefore, is intended to yield a system for the non-contact excitation of thin-walled structures through small, controlled blasts of air. An air-puff system, consisting of two fast-acting solenoid-controlled valves, a small air outlet nozzle and bespoke control software with a programmable valve control sequence, is researched and developed. The excitation impulse characteristics are investigated experimentally and described in detail for varying input control parameters. Ultimately, suitability of the system for the excitation of thin-walled structures is explored, for both a 3D-printed micro-satellite panel and a natural bee honeycomb, with promising results when compared to that of an impact hammer.	en_US
dc.relation.ispartof	8th IOMAC - International Operational Modal Analysis Conference, Proceedings	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Research and development of an air-puff excitation system for lightweight structures	en_US
dc.type	Conference Proceeding
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
utslib.copyright.status	open_access	*
pubs.publication-status	Published	en_US

Abstract:

© 2019 International Group of Operational Modal Analysis. Lightweight, thin-walled structures appear in numerous engineering and natural structures. Due to their sensitivity, vibration excitation by, now traditional, contacting techniques, such as modally-tuned impact hammers or electrodynamic shakers, to investigate their dynamics is challenging since it typically adds substantial mass and/or stiffness at the excitation location. The research presented in this article, therefore, is intended to yield a system for the non-contact excitation of thin-walled structures through small, controlled blasts of air. An air-puff system, consisting of two fast-acting solenoid-controlled valves, a small air outlet nozzle and bespoke control software with a programmable valve control sequence, is researched and developed. The excitation impulse characteristics are investigated experimentally and described in detail for varying input control parameters. Ultimately, suitability of the system for the excitation of thin-walled structures is explored, for both a 3D-printed micro-satellite panel and a natural bee honeycomb, with promising results when compared to that of an impact hammer.

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http://hdl.handle.net/10453/130917