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Der Sonderforschungsbereich 1463 „Integrierte Entwurfs‐ und Betriebsmethodik für Offshore‐Megastrukturen“ ist im Januar 2021 von der Deutschen Forschungsgemeinschaft für eine Laufzeit von zunächst vier Jahren eingerichtet worden. In 15 Teilprojekten beschäftigen sich Forscher von fünf Institutionen unter der Leitung der Leibniz Universität Hannover mit der Erforschung und Entwicklung neuer Methoden...
The implicit dynamic solution of multibody and finite element simulations with kinematic constraints requires the assembly of KKT‐like matrices, which are constant in structure, but unsymmetric in the most general case. Basically, the numerical solution is computed by means of a Newton‐Raphson iterative scheme and applying a direct sparse solver in this context demands a reordering step prior to the...
A complex mechanical system can be described as a combination of individual rigid and/or flexible components and a set of kinematical constraints. The restrictions can be either internal, which come on the scene in the case of parameterizing the configuration manifold of a system with a number of parameters larger than its intrinsic dimension, e.g. by employing three directors to describe the Lie...
With this work, we present a new object-oriented framework to study the nonlinear dynamics of slender structures made of composite multilayer and hyperelastic materials, which combines finite element method and multibody system formalism with a robust integration scheme. Each mechanical system under consideration is represented as a collection of infinitely stiff components, such as rigid bodies,...
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