Другие журналы
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Ermakov
Aeroelastic Dynamics Simulation of Two Baffle-Based Connected Shells
Engineering Education # 01, January 2015 DOI: 10.7463/0115.0753164 pp. 87-100
Numerical simulation of aeroelastic vibrations of profiles using the vortex element
Engineering Education # 08, August 2012 DOI: 10.7463/0812.0445353 The author studies a model problem of aeroelasticity in which a profile is flown by a two-dimensional flow of an incompressible medium. The profile contour is elastodeformed. To determine elastic deformation of the contour profile the finite element method is used. A beam with six degrees of freedom and a constant cross-section is considered as the final element. For numerical solution of the equations of the profile dynamics the method of expanding to their own forms is used. To calculate the parameters of the flow and unsteady aerodynamic load of the profile the vortex element method is used, it is based on the Lighthill-Chorin model of flow vorticity. Profiles of ellipse and wing are considered as model problems. The main parameters of the design scheme were selected on the basis of aerodynamic characteristics of rigid profiles. The results obtained for the elastic profile show the impact of elastic deformation of the profile on emerging unsteady aerodynamic forces.
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