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1 Vibrations in Physical Systems

1 2014

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Geometrically nonlinear free transversal vibrations of thin-walled elongated panels with arbitrary generatrix

Marchuk M., Goriachko T., Pakosh V.

Vibrations in Physical Systems

2014

Vol. 26

153--160

The algorithm for finding a finite number of the first values of natural frequencies and forms of geometrically nonlinear free transverse vibrations of thin-walled elongated panels with arbitrary generatrix is proposed and verified. Under normal coordinate quadratic the approximation of displacements is used. Along the tangential coordinates used one-dimensional finite elements. The discrete variation problem is built. For its solving the perturbation method is applied. The numerical results are compared with previously obtained by other authors.