Thermal Fatigue Problems of Turbine Casing

• Autorzy: Witek L. , Ngii D. M. , Kowalski T.

Identyfikatory

DOI

10.2478/v10164-010-0018-6

• Języki publikacji: EN

Abstrakty

EN

This paper presents numerical stress analysis of the turbine casing of an aero-engine. To solve the problem, the geometrically complicated numerical model was created. The finite element method was used in computations. In results of nonlinear static analyses performed for both mechanical and thermal load occurred under operating condition of engine, the stress and deformation contours were generated. High thermal stress gradients were found at the region of casing where fatigue cracks were detected during engine operation.

• Wydawca: Wydawnictwa Naukowe Sieci Badawczej Łukasiewicz - Instytutu Lotnictwa
• Czasopismo: Fatigue of Aircraft Structures
• Rocznik: 2009
• Tom: Iss. 1
• Strony: 205--211
• Opis fizyczny: Bibliogr. 8 poz., fot., rys., tab.

Twórcy

autor

Witek L.

• Rzeszów University of Technology, Rzeszów, Poland

autor

Ngii D. M.

• Rzeszów University of Technology, Rzeszów, Poland

autor

Kowalski T.

• Rzeszów University of Technology, Rzeszów, Poland

Bibliografia

• [1] MSC Corporation (2007). MARC-2005 User_s Manual. Los Angeles: MSC Corporation.
• [2] MSC Corporation (2005). MSC-PATRAN User_s Manual, ver. 2005r2. Los Angeles: MSC Corporation
• [3] Michailov, P. B. (1961). Sprawocznik po Metaliczeskim Matierialam Turbino- i Motorostroenija, Petersburg.
• [4] Ngii, D. M. (2007). Stress and strain analysis of the PZL-10W turbine casing. Master’s Thesis, Rzeszów: Rzeszów University of Technology, Faculty of Mechanical Engineering and Aeronautics.
• [5] Witek, L. (2006). Failure analysis of turbine disc of an aero engine, Engineering Failure Analysis, 13(1), Elsevier Science.
• [6] Witek, L., Kowalski, T., & Mamrowicz, J. (2007). Numerical stress and fatigue analysis of the first stage of turbine for helicopter engine. In: Proceedings of the International Conference on Aeronautical Fatigue, Napoli.
• [7] Witek, L., Poznańska, A., & Wierzbińska, M. Fracture analysis of a compressor blade of a helicopter engine, Engineering Failure Analysis, 16(5), 1616-1622.
• [8] Witek, L. (2009). Experimental crack propagation and failure analysis of the first stage compressor blade subjected to vibration. Engineering Failure Analysis. 16(7), 2163-2170.