20.500.12556/RUL-171502 Towards an improved experimental joint identification in frequency-based substructuring The dynamic behavior of assembled structures is strongly influenced by the dynamic properties of connections between the individual substructures, commonly referred to as joints. Accurately predicting assembly dynamics relies on identifying joint properties, which are influenced by factors such as preload, temperature, and vibration amplitude. These interactions make analytical and numerical modeling challenging, necessitating an experimental modeling approach. This study presents a joint identification framework inspired by the Lagrange multiplier frequency-based substructuring, along with four mutually independent modifications to the identification approach. These modifications comprise sparse regression, rigid-body mode constraints, excitation direction updating, and indirect parametrization. A parametrization-based approach is employed for estimating the mass, damping, and stiffness properties of the joint. The numerical and experimental results highlight the benefits of each modification and demonstrate the effectiveness of the proposed framework for robust joint property estimation. joint identification regularization virtual point transformation impact excitation dynamic substructuring karakterizacija spojev regularizacija transformacija virtualne točke impulzno vzbujanje dinamsko podstrukturiranje true false true Angleški jezik Slovenski jezik Članek v reviji 2025-08-27 12:16:32 2025-08-27 12:16:36 2026-07-02 13:06:52 0000-00-00 00:00:00 2025 0 0 26 str. Vol. 238, art. 113115 Sep. 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 531.3:004.42 0888-3270 10.1016/j.ymssp.2025.113115 246779395 Korbar_..._Towards....pdf Korbar_..._Towards....pdf 1 B1A9F8C31AB0C80A00E2E3B9E89A4E6C 82d9a3b58b315ff1d29576b39e3ce6335e36eafc78309bd72ebeec8983ca74d4 10d824ee-832f-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=214850 https://www.sciencedirect.com/science/article/pii/S0888327025008167 1 ca2206fe-832e-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=214849 Fakulteta za strojništvo 0 0 0