Stability of Composite Rotors with Massive Discs and Follower Load

• Autorzy: Weronko J. , Kurnik W.
• Konferencja: Polish-German Workshop on Dynamical Problems in Mechanical Systems (9 ; 4-10.09.2005 ; Paszkówka, Poland)
• Języki publikacji: EN

Abstrakty

EN

The paper is concerned with a new approach to the stability behaviour of a rotating composite shaft with two supports and massive disc at the end using dynamic eigenvalues and eigenform for bifurcation analysis. The shaft subjected to tip-concentrated axial follower load and discussion is focused on the influence of gyroscopic effect on the critical rotation speed and post-critical behaviour of the system. Dynamic base functions are applied in Galerkin's discretization procedure. Two mechanisms of flutter instability exhibited by the system are studied and explained for prospective applications in industrial machinery like compressors, pumps and turbines.

Słowa kluczowe

EN

rotating shaft; followed road; flutter instability; gyroscopic effect; dynamic eigenvalues; dynamic eigenform

• Wydawca: Oficyna Wydawnicza Politechniki Warszawskiej
• Czasopismo: Machine Dynamics Problems
• Rocznik: 2006
• Tom: Vol. 30, No. 1
• Strony: 113--124
• Opis fizyczny: Bibliogr. 8 poz., wykr.

Twórcy

autor

Weronko J.

autor

Kurnik W.

• Institute of Machine Design Fundamentals. Warsaw University of Technology,

Bibliografia

• Bauchau, O. A., 1983, Optimal Design of High-Speed Rotating Graphite/Epoxy Shafts, Journal of Composite Materials, 17, 170-181.
• Iooss, G., Joseph, D. D., 1980, Elementary Stability and Bifurcation Theory, Springer Verlag, N. Y.
• Kimball, A. L., 1924, Internal friction theory of shaft whirlings, General Electric Review, 17, 244-251.
• Kurnik, W., 1993, Self-Excited Vibration of thin-walled Composite Shafts with Brazier's Effect, Machine Dynamics Problems, 6, 125-140.
• Kurnik, W., 1994, Stability and Bifurcation Analysis of a Non-linear Transversally Loaded Rotating Shaft, Nonlinear Dynamics, 5, No 1, 39-52.
• Kurnik, W., Pękalak, M., 1992, Stability and Bifurcation Analysis of the Non-linear Damped Leipholz Column, Journal of Sound Vibration, 152, 285-294.
• Kurnik, W., Przybyłowicz, P. M., 2002, Active Stabilisation of a Piezoelectric Fiber Composite Shaft Subjected to Follower Load, Proceedings of Seventh Pan America Congress of Applied Mechanics PACAM VII (Eds. P. Kittl, G. Diaz, D. Mook, J. Geer), Temuco, Chile 2-4 Januar 2002, 93-96.
• Kurnik, W., Weronko, J., 2003, Optimisation of a flexible cantilever rotor with intermediate support, 5th EUROMECH Solid Mechanics Conference, GREECE, Book of Abstracts, p. 155.