FE-holomorphic operator function method for nonlinear plate vibrations with elastically added masses

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Department of Mathematical Sciences


Vibrations of structures subjected to concentrated point loads have many applications in mechanical engineering. Experiments are expensive and numerical methods are often used for simulations. In this paper, we consider the plate vibration with nonlinear dependence on the eigen-parameter. The problem is formulated as the eigenvalue problem of a holomorphic Fredholm operator function. The Bogner–Fox–Schmit element is used for discretization and the spectral indicator method is employed to compute the eigenvalues. The convergence is proved using the abstract approximation theory of Karma (1996a; 1996b). Numerical examples are presented for validations.

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Journal of Computational and Applied Mathematics