Optical sensor for localized damage detection and modal analysis on fast rotating fiber reinforced polymer structures

Julian Lich; Tino Wollmann; Robert Kuschmierz; Maik Gude; Jürgen Czarske

doi:10.1117/12.2673813

16 August 2023 Optical sensor for localized damage detection and modal analysis on fast rotating fiber reinforced polymer structures

Julian Lich, Tino Wollmann, Robert Kuschmierz, Maik Gude, Jürgen Czarske

Author Affiliations +

Proceedings Volume 12618, Optical Measurement Systems for Industrial Inspection XIII; 126180A (2023) https://doi.org/10.1117/12.2673813
Event: SPIE Optical Metrology, 2023, Munich, Germany

Abstract

Fiber reinforced polymers (FRP) are predestined for the construction of large high-speed rotors. However, their anisotropy makes complex models necessary, which must be validated by in-situ measurements. By reading out the far field of diffraction gratings on the surface of a 500 mm diameter FRP disk, we measured its deformation, damage and modal behavior as a function of the rotational velocity. We achieved high spatiotemporal resolution and high measurement resolution at surface velocities up to 275 m/s. To reduce systematic uncertainties and to measure at more complex rotor geometries, we introduce a new sensor setup with in situ calibration.

Conference Presentation

Citation Download Citation

Julian Lich, Tino Wollmann, Robert Kuschmierz, Maik Gude, and Jürgen Czarske "Optical sensor for localized damage detection and modal analysis on fast rotating fiber reinforced polymer structures", Proc. SPIE 12618, Optical Measurement Systems for Industrial Inspection XIII, 126180A (16 August 2023); https://doi.org/10.1117/12.2673813

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