A Note on the Post-Flutter Dynamics of a Rotating Disk
The dynamic response of a thin, flexible disk spinning in an enclosed air-filled chamber, beyond the onset of aeroelastic flutter, is investigated experimentally. The results describe the occurrence of new nonlinear dynamic phenomena in the post-flutter regime. A primary instability leads to the Hop...
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| Veröffentlicht in: | Journal of applied mechanics 2002-11, Vol.69 (6), p.864-866 |
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| container_end_page | 866 |
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| container_issue | 6 |
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| container_title | Journal of applied mechanics |
| container_volume | 69 |
| creator | Raman, A Hansen, M. H Mote, C. D |
| description | The dynamic response of a thin, flexible disk spinning in an enclosed air-filled chamber, beyond the onset of aeroelastic flutter, is investigated experimentally. The results describe the occurrence of new nonlinear dynamic phenomena in the post-flutter regime. A primary instability leads to the Hopf bifurcation of the flat equilibrium to a finite amplitude backward traveling wave. A secondary instability causes this traveling wave to jump to a large-amplitude frequency locked, traveling wave vibration. For a small range of rotation speeds, both types of traveling wave motions co-exist. The results underscore the interplay between structural and fluidic nonlinearities in controlling the dynamic response of the fluttering disk in the post-flutter regime. |
| doi_str_mv | 10.1115/1.1504097 |
| format | Article |
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| ispartof | Journal of applied mechanics, 2002-11, Vol.69 (6), p.864-866 |
| issn | 0021-8936 1528-9036 |
| language | eng |
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| source | ASME Transactions Journals |
| subjects | Exact sciences and technology Fundamental areas of phenomenology (including applications) Physics Solid mechanics Structural and continuum mechanics Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...) Vibrations and mechanical waves |
| title | A Note on the Post-Flutter Dynamics of a Rotating Disk |
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