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Hardening/softening behavior and reduced order modeling of nonlinear vibrations of rotating cantilever beams

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Academic year: 2021

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Figure

Fig. 1 a Sketch of the rotating beam. b Detail of a beam element deformation
Table 1 Natural frequencies [Hz] of the first three modes of the beam as a function of the rotation velocity, computed by the FE model (200 finite elements) and compared to the results of Ref
Table 2 Natural frequencies [Hz] of the first three modes of the beam as a function of the rotation velocity, computed by the FE model (20 or 40 finite elements), the VK model and the Inxt model (each with 6 transverse modes retained in the modal truncatio
Fig. 4 Time evolution of the tip of the beam at mode 1 resonance, FE model, rotation at 3000 RPM, transverse and axial displacements.
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