TY - GEN
T1 - Evaluation of Vibrations in Simple Structures Using the Laser Photo Deflection Method (LDP)
T2 - 5th International Conference on Civil Engineering and Architecture, ICCEA 2022
AU - Valera, Anibal
AU - Anzualdo, Gelacio Tafur
AU - Anzualdo, Irene Tafur
AU - Esenarro, Doris
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.
PY - 2024
Y1 - 2024
N2 - The objective of this research is to continue with the results of the first part of our project, the evaluation of vibrations in simple structures using the laser photodeflection method (LPD): in part 2 we present the results of the evaluation of vibrations of a pure concrete column. As stated in a previous report (part 1), the method that was applied is again a combined optoacoustic (non-destructive) procedure, whereby the vibration of the structure is induced by sound and vibrations are detected optically. The reflected laser beam deflects around the sensor in tune with the produced vibration (LPD). Experimentally, the first 12 resonant frequencies are obtained and the results are discussed within the framework of the known basic theoretical approaches. As initially indicated, the column has a length L = 1.75 m from the ground (earth), however, the column in turn has an embedment in the ground of about 30 cm, so the total effective length of the column is 2.05 m, which would significantly modify the evaluation of E to almost 11 GPa.
AB - The objective of this research is to continue with the results of the first part of our project, the evaluation of vibrations in simple structures using the laser photodeflection method (LPD): in part 2 we present the results of the evaluation of vibrations of a pure concrete column. As stated in a previous report (part 1), the method that was applied is again a combined optoacoustic (non-destructive) procedure, whereby the vibration of the structure is induced by sound and vibrations are detected optically. The reflected laser beam deflects around the sensor in tune with the produced vibration (LPD). Experimentally, the first 12 resonant frequencies are obtained and the results are discussed within the framework of the known basic theoretical approaches. As initially indicated, the column has a length L = 1.75 m from the ground (earth), however, the column in turn has an embedment in the ground of about 30 cm, so the total effective length of the column is 2.05 m, which would significantly modify the evaluation of E to almost 11 GPa.
KW - Laser evaluation
KW - Laser photo deflection
KW - Structure diagnosis
KW - Vibration modes
UR - http://www.scopus.com/inward/record.url?scp=85174435725&partnerID=8YFLogxK
U2 - 10.1007/978-981-99-4049-3_36
DO - 10.1007/978-981-99-4049-3_36
M3 - Conference contribution
AN - SCOPUS:85174435725
SN - 9789819940486
T3 - Lecture Notes in Civil Engineering
SP - 461
EP - 472
BT - Proceedings of 5th International Conference on Civil Engineering and Architecture - Proceedings of ICCEA 2022
A2 - Kang, Thomas
PB - Springer Science and Business Media Deutschland GmbH
Y2 - 16 December 2022 through 18 December 2022
ER -