Using vibroacoustic methods to describe the dynamic properties
of composite elements to assess their technical condition
1
Politechnika Poznańska
Online publication date: 2021-07-05
Publication date: 2021-07-05
Rail Vehicles/Pojazdy Szynowe 2021,2,41-51
KEYWORDS
ABSTRACT
The article presents the research process and a feasibility analysis of using acoustic pressure
as a diagnostic parameter in technical condition assessment of elements made of composite
materials. An experiment was carried out in the form of a pulse test using a modal hammer to
induce the system's vibroacoustic response. Large internal defects in the structure have been
shown to cause changes in the characteristics of the Frequency Response Function (FRF) in
the band below 8 kHz. The conducted analysis was used to prove that acoustic pressure can be
effectively used in the diagnosis of elements made of composite materials.
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| eISSN: | 2719-9630 |
| ISSN: | 0138-0370 |
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