FATIGUE LIFE ASSESSMENT OF AERO-ENGINE TURBINE BLADES UNDER DYNAMIC LOAD

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JAHED H.; AHMADIAN H.; KHOSHNAVAZ H.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Paper Information

Journal: INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN) Year:2007 | Volume:18 | Issue:1 (SUPPLEMENT OF MECHANIC ENGINNERING) Page(s): 19-32

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Title

FATIGUE LIFE ASSESSMENT OF AERO-ENGINE TURBINE BLADES UNDER DYNAMIC LOAD

Author(s)

JAHED H. | AHMADIAN H. | KHOSHNAVAZ H. | Issue Writer Certificate

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Abstract

A method for fatigue life assessment of turbine blades under gas dynamics induced loads is presented. The bending caused by the flow of hot gases over the blade face is determined via flow analysis in turbine cascade. A static bending analysis of the blade is carried out to acquire the stress distribution. The required equivalent dynamic stress coefficients and the damping coefficient of the system (blade attachment to the turbine wheel) are obtained from modal analysis. Using the magnified dynamic bending stresses and the centrifugal stresses, the fatigue life of the blade under resonance and working speed are assessed. The method is applied to J79 turbine blade and the results are in good agreement with given manufacturing specifications. This method is proposed for evaluation of locally manufactured turbine blades.

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APA: Copy

JAHED, H., AHMADIAN, H., & KHOSHNAVAZ, H.. (2007). FATIGUE LIFE ASSESSMENT OF AERO-ENGINE TURBINE BLADES UNDER DYNAMIC LOAD. INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN), 18(1 (SUPPLEMENT OF MECHANIC ENGINNERING)), 19-32. SID. https://sid.ir/paper/65677/en

Vancouver: Copy

JAHED H., AHMADIAN H., KHOSHNAVAZ H.. FATIGUE LIFE ASSESSMENT OF AERO-ENGINE TURBINE BLADES UNDER DYNAMIC LOAD. INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN)[Internet]. 2007;18(1 (SUPPLEMENT OF MECHANIC ENGINNERING)):19-32. Available from: https://sid.ir/paper/65677/en

IEEE: Copy

H. JAHED, H. AHMADIAN, and H. KHOSHNAVAZ, “FATIGUE LIFE ASSESSMENT OF AERO-ENGINE TURBINE BLADES UNDER DYNAMIC LOAD,” INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN), vol. 18, no. 1 (SUPPLEMENT OF MECHANIC ENGINNERING), pp. 19–32, 2007, [Online]. Available: https://sid.ir/paper/65677/en

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