MODAL ANALYSIS OF A SECOND STAGE BLADE IN A GAS TURBINE AND COMPARISON WITH EXPERIMENTAL RESULTS

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ASADOLAHI GHOHIEH A.; SAYYADNEZHAD M.H.

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Journal Paper

Paper Information

Journal: Journal of Applied and Computational Sciences in Mechanics Year:2011 | Volume:22 | Issue:2 (4) Page(s): 53-68

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Title

MODAL ANALYSIS OF A SECOND STAGE BLADE IN A GAS TURBINE AND COMPARISON WITH EXPERIMENTAL RESULTS

Author(s)

ASADOLAHI GHOHIEH A. | SAYYADNEZHAD M.H. | Issue Writer Certificate

Keywords

SUPER ALLOYQ3

TURBINE BLADEQ2

NATURAL FREQUENCYQ2

RESONANT FREQUENCYQ2

FINITE ELEMENTQ2

Abstract

In this research, modal analysis of a second stage blade in a gas turbine is investigated and vibration modes of blade are found in various conditions. The numerical calculation by FINITE ELEMENT method using NASTRAN-PATRAN software based on experimental test conditions is utilized and there is a good agreement between the experimental and FEM results. Finally by calculating excitation frequency in gas turbine work conditions and using a Campbell diagram, it is concluded that there is not any resonant problems in the blade and there is a good agreement between the experimental and FEM results as well.

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APA: Copy

ASADOLAHI GHOHIEH, A., & SAYYADNEZHAD, M.H.. (2011). MODAL ANALYSIS OF A SECOND STAGE BLADE IN A GAS TURBINE AND COMPARISON WITH EXPERIMENTAL RESULTS. JOURNAL OF APPLIED AND COMPUTATIONAL SCIENCES IN MECHANICS (JOURNAL OF SCHOOL OF ENGINEERING), 22(2 (4)), 53-68. SID. https://sid.ir/paper/196269/en

Vancouver: Copy

ASADOLAHI GHOHIEH A., SAYYADNEZHAD M.H.. MODAL ANALYSIS OF A SECOND STAGE BLADE IN A GAS TURBINE AND COMPARISON WITH EXPERIMENTAL RESULTS. JOURNAL OF APPLIED AND COMPUTATIONAL SCIENCES IN MECHANICS (JOURNAL OF SCHOOL OF ENGINEERING)[Internet]. 2011;22(2 (4)):53-68. Available from: https://sid.ir/paper/196269/en

IEEE: Copy

A. ASADOLAHI GHOHIEH, and M.H. SAYYADNEZHAD, “MODAL ANALYSIS OF A SECOND STAGE BLADE IN A GAS TURBINE AND COMPARISON WITH EXPERIMENTAL RESULTS,” JOURNAL OF APPLIED AND COMPUTATIONAL SCIENCES IN MECHANICS (JOURNAL OF SCHOOL OF ENGINEERING), vol. 22, no. 2 (4), pp. 53–68, 2011, [Online]. Available: https://sid.ir/paper/196269/en

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