Matches in SemOpenAlex for { <https://semopenalex.org/work/W2891484429> ?p ?o ?g. }
Showing items 1 to 87 of
87
with 100 items per page.
- W2891484429 abstract "Nonlinear analysis of dynamic problems has become important for modern industrial design applications. The increasing pressure on airlines to decrease fuel costs demands the design of more efficient aircraft. This requires aircraft manufacturing companies to design lighter structural components. The result is the need for more realistic and accurate modelling of critical structural components. Over the years, more powerful finite element discretization methods and improved numerical methods and programming techniques for dynamic analyses of structures have been introduced. Despite these advances and the increase in available computer power, the analysis of nonlinear dynamic problems is yet a computationally demanding task, implying it is very expensive. To reduce the computational time of nonlinear finite element analyses, reduction methods have been developed. These methods have as aim to reduce the number of degrees of freedom, while retaining sufficient accuracy of the solution. Recently, a new reduction method, applicable to nonlinear static stability problems, has been developed at Delft University of Technology. The aim of this thesis is to extend the reduction method for statics to nonlinear dynamics. This is achieved by using the Hamiltonian formulation to describe the motion of a system. A reduced order model (ROM) is constructed for free vibrations, forced vibrations and damped vibrations, using Hamilton’s equations of motion. These are integrated to obtain the response of the ROM, in terms of displacements and momenta. The displacements of the full finite element model are computed by back-substituting the reduced response into the displacement expansion. The ROM is implemented in a finite element framework. The ROM is applied to beams, to plates as well as to shells. Overall, good agreement is found between the ROM and Abaqus. The big advantage of the ROM is found when the computational times for beams and plates are compared to that of Abaqus. A drastic reduction in time is observed for the ROM, while still maintaining accurate results. The ROM thus saves valuable computational time." @default.
- W2891484429 created "2018-09-27" @default.
- W2891484429 creator A5030802934 @default.
- W2891484429 date "2015-01-01" @default.
- W2891484429 modified "2023-09-27" @default.
- W2891484429 title "A Hamiltonian Reduction Method for Nonlinear Dynamics" @default.
- W2891484429 hasPublicationYear "2015" @default.
- W2891484429 type Work @default.
- W2891484429 sameAs 2891484429 @default.
- W2891484429 citedByCount "0" @default.
- W2891484429 crossrefType "journal-article" @default.
- W2891484429 hasAuthorship W2891484429A5030802934 @default.
- W2891484429 hasConcept C111335779 @default.
- W2891484429 hasConcept C11413529 @default.
- W2891484429 hasConcept C115527620 @default.
- W2891484429 hasConcept C121332964 @default.
- W2891484429 hasConcept C126255220 @default.
- W2891484429 hasConcept C127413603 @default.
- W2891484429 hasConcept C134306372 @default.
- W2891484429 hasConcept C135628077 @default.
- W2891484429 hasConcept C14037181 @default.
- W2891484429 hasConcept C154945302 @default.
- W2891484429 hasConcept C158622935 @default.
- W2891484429 hasConcept C198394728 @default.
- W2891484429 hasConcept C208081375 @default.
- W2891484429 hasConcept C2524010 @default.
- W2891484429 hasConcept C2775924081 @default.
- W2891484429 hasConcept C33923547 @default.
- W2891484429 hasConcept C35441770 @default.
- W2891484429 hasConcept C41008148 @default.
- W2891484429 hasConcept C47446073 @default.
- W2891484429 hasConcept C62520636 @default.
- W2891484429 hasConcept C66938386 @default.
- W2891484429 hasConcept C73000952 @default.
- W2891484429 hasConcept C74650414 @default.
- W2891484429 hasConcept C99580578 @default.
- W2891484429 hasConceptScore W2891484429C111335779 @default.
- W2891484429 hasConceptScore W2891484429C11413529 @default.
- W2891484429 hasConceptScore W2891484429C115527620 @default.
- W2891484429 hasConceptScore W2891484429C121332964 @default.
- W2891484429 hasConceptScore W2891484429C126255220 @default.
- W2891484429 hasConceptScore W2891484429C127413603 @default.
- W2891484429 hasConceptScore W2891484429C134306372 @default.
- W2891484429 hasConceptScore W2891484429C135628077 @default.
- W2891484429 hasConceptScore W2891484429C14037181 @default.
- W2891484429 hasConceptScore W2891484429C154945302 @default.
- W2891484429 hasConceptScore W2891484429C158622935 @default.
- W2891484429 hasConceptScore W2891484429C198394728 @default.
- W2891484429 hasConceptScore W2891484429C208081375 @default.
- W2891484429 hasConceptScore W2891484429C2524010 @default.
- W2891484429 hasConceptScore W2891484429C2775924081 @default.
- W2891484429 hasConceptScore W2891484429C33923547 @default.
- W2891484429 hasConceptScore W2891484429C35441770 @default.
- W2891484429 hasConceptScore W2891484429C41008148 @default.
- W2891484429 hasConceptScore W2891484429C47446073 @default.
- W2891484429 hasConceptScore W2891484429C62520636 @default.
- W2891484429 hasConceptScore W2891484429C66938386 @default.
- W2891484429 hasConceptScore W2891484429C73000952 @default.
- W2891484429 hasConceptScore W2891484429C74650414 @default.
- W2891484429 hasConceptScore W2891484429C99580578 @default.
- W2891484429 hasLocation W28914844291 @default.
- W2891484429 hasOpenAccess W2891484429 @default.
- W2891484429 hasPrimaryLocation W28914844291 @default.
- W2891484429 hasRelatedWork W1543465477 @default.
- W2891484429 hasRelatedWork W1645584797 @default.
- W2891484429 hasRelatedWork W2031052341 @default.
- W2891484429 hasRelatedWork W2080768273 @default.
- W2891484429 hasRelatedWork W2110691857 @default.
- W2891484429 hasRelatedWork W2163558655 @default.
- W2891484429 hasRelatedWork W2237397139 @default.
- W2891484429 hasRelatedWork W2566243246 @default.
- W2891484429 hasRelatedWork W2610120061 @default.
- W2891484429 hasRelatedWork W2704200348 @default.
- W2891484429 hasRelatedWork W2767122869 @default.
- W2891484429 hasRelatedWork W2783239489 @default.
- W2891484429 hasRelatedWork W2791734511 @default.
- W2891484429 hasRelatedWork W2889740059 @default.
- W2891484429 hasRelatedWork W289160027 @default.
- W2891484429 hasRelatedWork W2899527806 @default.
- W2891484429 hasRelatedWork W2992375620 @default.
- W2891484429 hasRelatedWork W3039460771 @default.
- W2891484429 hasRelatedWork W3072177726 @default.
- W2891484429 hasRelatedWork W3159738611 @default.
- W2891484429 isParatext "false" @default.
- W2891484429 isRetracted "false" @default.
- W2891484429 magId "2891484429" @default.
- W2891484429 workType "article" @default.