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NUMERICAL ANALYSIS OF MEMBRANE STABILITY IN AIR FLOW

✍ Scribed by R. Sygulski

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
359 KB
Volume
201
Category
Article
ISSN
0022-460X

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✦ Synopsis

A numerical analysis of membrane stability in air flow is presented. The flow is treated as incompressible and potential. The divergent type and the flutter type of the loss of stability are studied. The problem is described by differential and integral equations, and the FEM and BEM are used to solve these equations, respectively. To discretize the membrane surface, triangular curvilinear six-node elements are applied. The eigenvalues of the matrix equation representing the quadratic eigenvalue problem give the complex frequencies of the membrane and enable one to predict whether the membrane motion is stable or unstable. Dimensionless stability analyses of circular, square and rectangular membranes are presented.

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