Response of Grilage-Like Structures by the Mobility Approach



Título del documento: Response of Grilage-Like Structures by the Mobility Approach
Revista: Journal of the Brazilian Society of Mechanical Sciences
Base de datos: PERIÓDICA
Número de sistema: 000312093
ISSN: 0100-7386
Autores: 1
Instituciones: 1Universidade Federal de Santa Catarina, Departamento de Engenharia Mecanica, Florianopolis, Santa Catarina. Brasil
Año:
Volumen: 23
Número: 3
Paginación: 363-377
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental
Resumen en inglés This work presents an application of the Mobility Approach to the analysis of the power flow through grillage-like structures. Such structures are usually found in offshore platforms, supporting large and heavy machines. Different wave kinds (longitudinal, flexural and torsional) were initially considered in the power flow analysis between two beams joined in L. Beams excited by an in-plane point force showed strong coupling between longitudinal-flexural waves, while that for out-of-plane point force excitation, flexural-torsional waves coupling represents the most important mechanism of energy transmission. The response determination of grillages by the mobility approach requires the structure to be separated into simple beam-like structural components. Equations for rotations and displacements at the joints of all beams are written for as mobility functions, and moments and forces acting at the joints. A system of equations relating all such internal forces and moments is obtained. This approach was applied to simple grillages. Response results showed good agreement when compared to those provided by Finite Elements
Disciplinas: Ingeniería
Palabras clave: Ingeniería mecánica,
Estructuras,
Flujo de potencia,
Ondas,
Vigas acopladas,
Movilidad
Keyword: Engineering,
Mechanical engineering,
Structures,
Power flow,
Waves,
Coupled beams,
Mobility
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