CALCULATION OF LIMIT CYCLE OSCILLATION AMPLITUDE AND FREQUENCY OF AIRFOILS CONTAINING CUBIC NONLINEARITY

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GHADIRI B.; RAZI M.

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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): 137-150

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Title

CALCULATION OF LIMIT CYCLE OSCILLATION AMPLITUDE AND FREQUENCY OF AIRFOILS CONTAINING CUBIC NONLINEARITY

Author(s)

GHADIRI B. | RAZI M. | Issue Writer Certificate

Keywords

LIMIT CYCLE OSCILLATIONSQ2

CUBIC NONLINEARITYQ2

HARMONIC BALANCE METHODQ2

DESCRIBING FUNCTION METHODQ2

Abstract

In this paper governing aeroelastic equations of the two degree of freedom airfoil containing CUBIC NONLINEARITY in an incompressible flow are presented in the both time and frequency domains.Numerical solution and HARMONIC BALANCE METHODs are applied for the solution of govening aeroelastic equations in the time domain to obtain amplitude and frequency of LIMIT CYCLE OSCILLATIONS (LCO). Also, DESCRIBING FUNCTION METHOD is modified and presented for the pediction of theLCO amplitude and frequency in the frequency domain.LCO frequency and amplitude are obtained via applying three methods as harmonic balance, describing function and numerical solution methods for two different cases. Comparision between the results of these three methods shows a very good agreement.

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APA: Copy

GHADIRI, B., & RAZI, M.. (2011). CALCULATION OF LIMIT CYCLE OSCILLATION AMPLITUDE AND FREQUENCY OF AIRFOILS CONTAINING CUBIC NONLINEARITY. JOURNAL OF APPLIED AND COMPUTATIONAL SCIENCES IN MECHANICS (JOURNAL OF SCHOOL OF ENGINEERING), 22(2 (4)), 137-150. SID. https://sid.ir/paper/196262/en

Vancouver: Copy

GHADIRI B., RAZI M.. CALCULATION OF LIMIT CYCLE OSCILLATION AMPLITUDE AND FREQUENCY OF AIRFOILS CONTAINING CUBIC NONLINEARITY. JOURNAL OF APPLIED AND COMPUTATIONAL SCIENCES IN MECHANICS (JOURNAL OF SCHOOL OF ENGINEERING)[Internet]. 2011;22(2 (4)):137-150. Available from: https://sid.ir/paper/196262/en

IEEE: Copy

B. GHADIRI, and M. RAZI, “CALCULATION OF LIMIT CYCLE OSCILLATION AMPLITUDE AND FREQUENCY OF AIRFOILS CONTAINING CUBIC NONLINEARITY,” JOURNAL OF APPLIED AND COMPUTATIONAL SCIENCES IN MECHANICS (JOURNAL OF SCHOOL OF ENGINEERING), vol. 22, no. 2 (4), pp. 137–150, 2011, [Online]. Available: https://sid.ir/paper/196262/en

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