Abstract
In this paper, the dynamic Koiter's model is discussed for the hyperbolic parabolic shell, i.e., the saddle surface as its middle surface. The numerical computation for this kind of shell is the most difficult as its complex differential geometry. We provide a numerical algorithm for solving the dynamic problems with finite elements and finite difference methods. At the same time, we do the numerical experiments for the hyperbolic parabolic shell. Concretly, we consider the roof of the Valencia Aquarium as a hyperbolic parabolic shell with a geometric model of the roof deduced. Then, we simulate the deformation of the roof by the dynamic applied force coupled with the dynamic Koiter's model. Finally, a comparison of the displacement distribution on the middle surface is made, which verifies that the dynamic Koiter's model is efficient and that numerical algorithm is stable for the hyperbolic parabolic shell. This result provides a strong theoretical and applicable support for the design and protection of such large-span buildings whose roofs and walls are of one whole object.
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