Multistage coupling of eight mistuned bladed discs on a solid shaft with 1% mistuning

• Autorzy: Maurin A. , Rządkowski R. , Drewczyński M.
• Konferencja: International Symposium on Compressor and Turbine Flow Systems - Theory and Application Areas "SYMKOM" (10 ; 26-28.10.2011 ; Łódź, Polska)
• Języki publikacji: EN

Abstrakty

EN

Considered here was the effect of multistage coupling on the dynamics of a rotor consisting of eight mistuned bladed discs on a solid shaft. Free and forced vibrations were examined. In this study, the global rotating mode shapes of flexible mistuned bladed discs-shaft assemblies were calculated, taking into account rotational effects, such as centrifugal stiffening. The thus obtained natural frequencies of the blade, the shaft, the bladed disc, and the entire shaft with discs were carefully examined to discover resonance conditions and coupling effects.

Słowa kluczowe

EN

multistage coupling; mistuning; blades; bladed disc

PL

ostrza; sprzęgła wielostopniowe

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Mechanics and Mechanical Engineering
• Rocznik: 2011
• Tom: Vol. 15, nr 3
• Strony: 309--317
• Opis fizyczny: Bibliogr. 9 poz.

Twórcy

autor

Maurin A.

autor

Rządkowski R.

autor

Drewczyński M.

• Department of Dynamics of Machines, Institute of Fluid Flow Machinery,

Bibliografia

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• [2] Laxalde D., Lombard J-P. and Thouverez F.: Dynamics of multi-stage bladed disks systems, Proc. Of ASME Turbo Expo 2007: Power for Land, Sea and Air, May 14-1, Montreal, Canada, 2007.
• [3] Rzadkowski, R., Kwapisz, L., Sokołowski, J., Karpiuk, R., Ostowski, P., and Radulski, W.: Natural Frequencies and Mode Shapes of Rotating Three Shrouded Blades Discs Placed on the Part of the Shaft, Proceedings of the Second International Symposium On Stability Control of Rotating Machinery, (ISCORMA-2), Gdańsk, 4-8 August 2003, pp. 381-392, 2003.
• [4] Rzadkowski R., Drewczyński M.: Forced Vibration of Several Bladed Discs on the Shaft, Proc. Of ASME Turbo Expo 2006: Power for Land, Sea and Air, May 8-11, Barcelona, Spain, 2006.
• [5] Rzadkowski R. and Drewczyński M.: Coupling of Vibration of Several Bladed Discs on the Shaft, Advances in Vibration Engineering, The Scientific Journal of the Vibration Institute of India, Vol. 8, No. 2, pp. 125-139, 2009.
• [6] Rzadkowski R. and Drewczyński M.: Multistage Coupling of Eight Bladed Discs on a Solid Shaft, Proc. Of ASME Turbo Expo 2010: Power for Land, Sea and Air, June 14-18, Glasgow, DK, 2010.
• [7] Shahab A.A.S. and Thomas J.: Coupling effects of disc flexibility on the dynamics behaviour of multi disc-shaft system, Journal of Sound and Vibration, 114(3), pp. 435-452, 1987.
• [8] Sharma B.K., Devadig H.V. and Singh A.K.: Modal Time History Analysis of a Steam Turbine Rotor to an Earthquake Excitation - A 3D Approach, Advances in Vibration Engineering, The Scientific Journal of the Vibration Institute of India, Vol. 4, No. 4, pp. 351-359, 2005.
• [9] Sinha A.: Reduced-Order Model of Mistuned Multi-Stage Bladed Rotor, Proc. of ASME Turbo Expo 2007: Power for Land, Sea and Air, May 14-17, Montreal, Canada, 2007.