The Influence of Supersonic Stream on the Dependence "Amplitude-Frequency" of Nonlinear Vibrations of Flexible Plate Institute of Mechanics

Format:

Conference/Event

Author/Creator:

Baghdasaryan, Baghdasaryan, author.

Contributor:

Cestino, Enrico

Frulla, Giacomo

Mikilyan, Marine

Saghoyan, Rafayel

Conference Name:

SAE 2013 AeroTech Congress & Exhibition (2013-09-24 : Montréal, Canada)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2013

Summary:

The stability analysis of plates and shells in high speed flow deals with the determination of the flutter instability boundary. A linear analysis is made using the basic principles of the theory of aero-elasticity of isotropic bodies, the theories of flexible plates, the stability equations and associated boundary conditions obtained through a linear formulation. Herein, the nonlinear stability of flexible plate immersed in a high speed gas flow is considered. The model takes into account quadratic and cubic aerodynamic nonlinearities as well as cubic geometric nonlinearities. It is shown that the inclusion of quadratic aerodynamic nonlinear components can lead to the appearance of "amplitude-frequency" phenomena in both the pre-critical as well as in the post-critical flow speed regimes. The influence of the free stream flow speed on the "amplitude-frequency" dependence phenomena is also presented

Notes:

Vendor supplied data

Publisher Number:

2013-01-2160

Access Restriction:

Restricted for use by site license