Volume 9, Issue 1 (12-2009)                   Modares Mechanical Engineering 2009, 9(1): 93-106 | Back to browse issues page

‎ 20.1001.1.10275940.1388.9.1.7.1

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Ghadiri B, Razi M, Hamidi S. Dynamic Instability Analysis of a Swept Wing in Time - Domain. Modares Mechanical Engineering 2009; 9 (1) :93-106
URL: http://mme.modares.ac.ir/article-15-227-en.html
Dynamic Instability Analysis of a Swept Wing in Time - Domain
Behzad Ghadiri * 1, Mani. Razi1 , Sabah Hamidi1
1- Tarbiat Modares University
Abstract:   (6187 Views)
In this paper linear aeroelastic analysis of a swept wing with two degrees of freedom in an incompressible flow is investigated in time - domain. The equations of the motion of an elastic wing are derived from Lagrange’s equations in time - domain. The wing is modeled as a cantilever beam rigidly connected to the root. Considering assumed modes of cantilever beam, aerodynamic forces and moments acting on the wing are derived using strip - theory in an unsteady incompressible potential fluid flow. The governing aeroelastic equations of the system have been introduced in dimensionless form. These equations are solved via a numerical method. Comparisons between obtained results and both available experimental data and the results of some cited references indicate a close agreement.
Keywords: Assumed Mode Method, Flutter, Linear Aeroelasticity, Swept Wing, Time domain
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Received: 2006/11/7 | Accepted: 2008/11/2 | Published: 2009/10/13
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