Operational joint identification using transfer path analysis and frequency-based substructuring

Michael Kreutz

doi:10.1016/j.ymssp.2026.115028

Operational joint identification using transfer path analysis and frequency-based substructuring

2026-10-29

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DOI：10.1016/j.ymssp.2026.115028

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• Novel method combining TPA with FBS to identify joint dynamics in operation. • Assembly FRFs estimated from operational responses without external excitation. • Numerical and experimental validation on a magnetic-bearing rotor test rig. • Applicability, limitations, and requirements for reliable operational identification.

Keywords:

Transfer path analysis

Equivalent force

Experimental substructuring

Frequency-based substructuring

Joint identification

Substructure decoupling

Condition monitoring

Magnetic bearings

Operational joint identification using transfer path analysis and frequency-based substructuring

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