Harmonic Analysis of Self-Excited Acoustical System for Stress Changes Measurement in Compressed Steel Structural Section

Janusz Kwaśniewski; Ireneusz Dominik; Krzysztof Lalik; Rafał Szymański

doi:10.4028/www.scientific.net/SSP.198.639

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HomeSolid State PhenomenaSolid State Phenomena Vol. 198Harmonic Analysis of Self-Excited Acoustical...

Harmonic Analysis of Self-Excited Acoustical System for Stress Changes Measurement in Compressed Steel Structural Section

Abstract:

This paper presents the application of the Self-exited Acoustical System (SAS) for monitoring stress changes in steel. The change of the speed of wave propagation, which is associated with the change of the resonance frequency in the system is caused by the deformation of the examined material. The SAS system is based on this phenomenon and can be used for an indirectly measurement of the stresses changes in the steel. Preliminary calculations such as static analysis and dynamic simulation of the system were carried out. The results of calculations were compared with the experimental data of the steel beam.

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Periodical:

Solid State Phenomena (Volume 198)

Pages:

639-644

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.198.639

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Online since:

March 2013

Authors:

Janusz Kwaśniewski, Ireneusz Dominik, Krzysztof Lalik, Rafał Szymański

Keywords:

Finite Element Method (FEM), Self-Excited System, Stress Measurement

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