Publicou 6 edições por ano
ISSN Imprimir: 1543-1649
ISSN On-line: 1940-4352
Indexed in
Formulation of Modal-Based Elements in Nonlinear, Flexible Multibody Dynamics
RESUMO
This article is concerned with modeling elastic components in nonlinear, flexible multibody systems. The behavior of the elastic components will be represented by a modal expansion, thereby greatly reducing the computational cost of the simulation. In this work, a floating frame approach is used. The total motion of the elastic body consists of the superposition of the rigid body motions of the floating frame and of elastic motions that are assumed to remain small. The proposed formulation makes use of a component mode synthesis technique that leaves the analyst free to choose any type of modal basis and simplifies the connection of the elastic components to other components of the system. The proposed formulation is independent of the finite element analysis package used to compute the modes of the elastic components. It is also shown that in the absence of elastic deformations, the formulation recovers the exact equations of motion for a rigid body.
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Boer S. E., Aarts R. G. K. M., Meijaard J. P., Brouwer D. M., Jonker J. B., A nonlinear two-node superelement for use in flexible multibody systems, Multibody System Dynamics, 31, 4, 2014. Crossref
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Lozovskiy Alexander, The modal reduction method for multi-body dynamics with non-smooth contact, International Journal for Numerical Methods in Engineering, 98, 13, 2014. Crossref
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Zasso Alberto, Schito Paolo, Bottasso Carlo L., Croce Alessandro, Aero-Servo-Elastic Design of Wind Turbines: Numerical and Wind Tunnel Modeling Contribution, in Environmental Wind Engineering and Design of Wind Energy Structures, 2011. Crossref