TY - GEN
T1 - Improving experimental impulse-based substructuring through interface weakening
AU - Zobel, O. M.
AU - Trainotti, F.
AU - Rixen, D. J.
N1 - Publisher Copyright:
© 2024 Proceedings of ISMA 2024 - International Conference on Noise and Vibration Engineering and USD 2024 - International Conference on Uncertainty in Structural Dynamics. All rights reserved.
PY - 2024
Y1 - 2024
N2 - One issue of experimentally applying the impulse-based-substructuring (IBS) method is an unstable response of the assembled system due to a combination of inaccuracies in the experimentally obtained impulse response functions (IRF), the exact enforcement of interface compatibility and the cumulative nature of the conducted convolution. This paper outlines some thoughts about interface modeling for IBS and presents various methods for weakening the interface compatibility. The effectiveness of the presented methods is then tested on a numerical example with added artificial noise. The example shows that a small amount of noise can already be detrimental for the IBS method and that an effective treatment has to be found. Finally, the most promising method is tested on an experimental example, where some potential for further development of the proposed method can be seen.
AB - One issue of experimentally applying the impulse-based-substructuring (IBS) method is an unstable response of the assembled system due to a combination of inaccuracies in the experimentally obtained impulse response functions (IRF), the exact enforcement of interface compatibility and the cumulative nature of the conducted convolution. This paper outlines some thoughts about interface modeling for IBS and presents various methods for weakening the interface compatibility. The effectiveness of the presented methods is then tested on a numerical example with added artificial noise. The example shows that a small amount of noise can already be detrimental for the IBS method and that an effective treatment has to be found. Finally, the most promising method is tested on an experimental example, where some potential for further development of the proposed method can be seen.
UR - http://www.scopus.com/inward/record.url?scp=85212232709&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85212232709
T3 - Proceedings of ISMA 2024 - International Conference on Noise and Vibration Engineering and USD 2024 - International Conference on Uncertainty in Structural Dynamics
SP - 3429
EP - 3443
BT - Proceedings of ISMA 2024 - International Conference on Noise and Vibration Engineering and USD 2024 - International Conference on Uncertainty in Structural Dynamics
A2 - Desmet, W.
A2 - Pluymers, B.
A2 - Moens, D.
A2 - del Fresno Zarza, J.
PB - KU Leuven, Departement Werktuigkunde
T2 - 31st International Conference on Noise and Vibration Engineering, ISMA 2024 and 10th International Conference on Uncertainty in Structural Dynamics, USD 2024
Y2 - 9 September 2024 through 11 September 2024
ER -