Finite Element Analysis of Nonlinear Oscillations and Flutter of Shells of Revolution.
Final rept. 16 Aug 82-15 Aug 83,
YALE UNIV NEW HAVEN CT DEPT OF MECHANICAL ENGINEERING
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In chapter I, a finite element methodology is described for analysis of steady nonlinear periodic oscillations of axisymmetric shells. The technique is a combination of asymptotic analysis and the finite element method and the results that it yields include the significant effect of nonlinear interaction between the waves that travel in opposite directions along the circumference. In chapter II, an extended numerical method is described which is applicable to shells rotating at a constant speed about their geometrical axes. In the final chapter, a general solution for the problem of nonlinear flutter of axisymmetric shells is presented. The method is expected to be useful for developing a numerical scheme for analyzing this class of problems. Originator-supplied keywords include Nonlinear flutter.
- Numerical Mathematics
- Fluid Mechanics