Unsteady Forces Acting on Blades and the Shaft in the Last Stage of Steam Turbine with Exhaust Hood

• Autorzy: Rządkowski R. , Soliński M. , Kwapisz L. , Gnesin V.
• Języki publikacji: EN

Abstrakty

EN

The aerodynamic unsteady forces acting on the rotor blades and the shaft in the last stage of turbine 13K215 were calculated. A numerical simulation of a 3D transonic ideal gas flow through turbomachinery blade rows moving relative to one another is presented, with a non-uniform pressure distribution of steam behind the rotor blades. In order to find the pressure distribution, numerical calculations were done for unsteady flow through the stage with the exhaust hood using the program FLUENT. The unsteady forces of the rotor blades were calculated. The natural frequencies of the bladed disc were compared with the frequencies of the flow excitations. Next, the unsteady forces acting on the shaft were calculated, taking the mistuning of the blades into consideration.

Słowa kluczowe

EN

shaft; steam turbine; rotor blade; exhaust hood

PL

szyb; turbina parowa; łopatka wirnika; króćce wylotowe

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka
• Rocznik: 2005
• Tom: nr 128, vol. 2
• Strony: 471--478
• Opis fizyczny: Bibliogr. 7 poz.

Twórcy

autor

Rządkowski R.

• Department of Dynamics of Machines, Institute of Fluid Flow Machinery, Polish Academy of Sciences, Gdansk

autor

Soliński M.

• Department of Dynamics of Machines, Institute of Fluid Flow Machinery, Polish Academy of Sciences, Gdansk

autor

Kwapisz L.

• Department of Dynamics of Machines, Institute of Fluid Flow Machinery, Polish Academy of Sciences, Gdansk

autor

Gnesin V.

• Department of Aerohydromechanics, Institute for Problems in Machinery Ukrainian National Academy of Sciences, 2/10 Pozharsky st., Kharkov 310046 UKRAINE

Bibliografia

• [1] Rządkowski R., “Dynamics of Rotor Steam Turbine Blading, Part Two, Bladed Discs”, Maszyny Przepływowe, Tom 22, Wrocław, Ossolineum, 1998.
• [2] Rządkowski R., Doerffer P., Soliński M., Flaszyński P., Łuniewicz B., Ostrowski P., Radulski W., Gnesin V., “Unsteady Aerodynamic Forces Acting on the Rotor Blades in the Turbine Stage with Steam Extraction”, Przepływowe Maszyny Wirnikowe, Zbiór Prac IX Międzynarodowa Konferencja Nakowo-Techniczna, Przepływowe Maszyny Wirnikowe, Rzeszów-Myczkowice, 16-18 Październik 2003 pod redakcją K.Oczosia , 89-97, 2003.
• [3] Rządkowski R., Gnesin V., “Flutter and 3D Unsteady Forces Acting on the Last Stage Rotor Blades with Non-Uniform Pressure Distribution Behind the Rotor Blades of the Steam Turbine 13K215”, Przepływowe Maszyny Wirnikowe, Zbiór Prac.IX Międzynarodowa Konferencja Nakowo-Techniczna, Przepływowe Maszyny. Wirnikowe, Rzeszów-Myczkowice, 16-18 Październik 2003 pod redakcją K.Oczosia, 99-107, 2003.
• [4] Rządkowski R., Soliński M., Gnesin V., Radulski W., „Aerodynamic Unsteady Forces of the Mistuned Rotor Blades in the Control Stage”, Problems of Dynamics and Strength In Gas-Turbine Construction, Abstracts of the Second International Conference, 25-27 May 2004 Kiev, Ukraine, 221-222, 2004.
• [5] Rządkowski R., Gnesin V., “3D Unsteady Forces of the Transonic Flow Through a Turbine Stage with Vibrating Blades”, ASME Paper GT-2002-300311, 2002.
• [6] Gnesin V., “Program Package, 3D Flow, Theory Manual”, Opr. wew. IMP PAN, Nr. arch. 1652/01, Gdańsk 2001.
• [7] Badur J., Solodov V., Karcz M., Kucharski R., “Examining of excitation of the stage with exhaust hood”. Oprac. Wew. IMPPAN 3345/03, 2003.