TY - GEN
T1 - On the experimental linear identification of a multiple-joint bolted connection using frequency-based substructuring
AU - Kreutz, 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 - The dynamics of bolted joints are still an essential uncertainty in the modeling of machines. Frequency-based substructuring techniques have been successfully applied to isolate the linearized dynamics of one bolted joint in six degrees of freedom. A step towards the identification of flange connections is to apply the isolation for an assembly with multiple joints. In this contribution, an assembly connected via two bolted joints is investigated, where the dynamics of both bolted joints are isolated in a single decoupling step. Due to the stiff bolted joint connection, the substructuring problem is ill-conditioned. Strategies to deal with the ill-conditioning are presented. The performance is assessed by reconstructing the assembly dynamics with the identified joint and comparing them to the measured FRFs.
AB - The dynamics of bolted joints are still an essential uncertainty in the modeling of machines. Frequency-based substructuring techniques have been successfully applied to isolate the linearized dynamics of one bolted joint in six degrees of freedom. A step towards the identification of flange connections is to apply the isolation for an assembly with multiple joints. In this contribution, an assembly connected via two bolted joints is investigated, where the dynamics of both bolted joints are isolated in a single decoupling step. Due to the stiff bolted joint connection, the substructuring problem is ill-conditioned. Strategies to deal with the ill-conditioning are presented. The performance is assessed by reconstructing the assembly dynamics with the identified joint and comparing them to the measured FRFs.
UR - http://www.scopus.com/inward/record.url?scp=85212200934&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85212200934
T3 - Proceedings of ISMA 2024 - International Conference on Noise and Vibration Engineering and USD 2024 - International Conference on Uncertainty in Structural Dynamics
SP - 1096
EP - 1109
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 -