Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 41 for “"non-linear analysis"”.
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Non-linear analysis of infilled frames.
This thesis is concerned with the analysis of building frames acting compositely with infilling wall panels. The significance of the composite action is emphasized and previous work on infilled frames is reviewed. The existing methods of analysis are categorized and their analytical assumptions are …
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Non-linear analysis of cello pitch and timbre
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Architecture, 1992.
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Non-linear analysis of building frames for earthquake loading.
Massachusetts Institute of Technology. Dept. of Civil Engineering. Thesis. 1970. Ph.D.
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Non-linear analysis and dynamic monitoring methods for the safety assessment of bridges and viaducts
L'abstract è presente nell'allegato / the abstract is in the attachment
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"""White Noise"" Non-Linear Analysis of Inferior Colliculus Neural Responses in the Little Brown Bat, Myotis Lucifugus"
… are changed one at a time), this study used non-linear techniques and measured responses to pulse trains in which both amplitude and inter-pulse gap were randomly varied. ""White noise"" analysis techniques, including both the calculation of system kernels and new cross-correlational …
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Non-linear analysis and optimization techniques for sub-millimiter and therahertz circuits and systems, implemented for imaging and communication systems
El Proyecto de Tesis Doctoral ha sido dedicado a la investigación en posibles métodos para generar y detectar señales de la banda sub-milimétrica, empleando circuitos Multifuncionales Basados en Osciladores (MBO), y realizados con dispositivos electrónicos (transistores, diodos), haciendo uso de la …
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Análise não-linear física de vigas contínuas em concreto armado e protendido
A non-linear analysis is developed for a prestressed concrete continuous beam, based on the theory of the finite-element method. As a consequence of the theoretical study, a computer program in FORTRAN is developed. This program performs a physical non - linear analysis of a prestressed continuous …
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Algoritmos de relaxação dinâmica adaptativa para a análise elastoplástica de estruturas tridimensionais
… relaxation adaptive algorithms applied to the analysis of structures by the Finite Element Method (isoparametric three-dimensional elements). These algorithms allow for both linear or non-linear analysis, considering plasticity and large displacement effects. Finally sorne examples of …
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The use of generalized beam theory, finite elements and experimental testing to investigate the stability of light gauge steel sections subject to axial load
… such as Euler buckling, buckling load factors, linear and non-linear analysis, buckling modes (global, distortional and local buckling) and buckling analysis methods (finite element method, finite strip method and generalized beam theory) are addressed. The literature review is concerned with …
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A TUNNEL DIODE ANALOGUE
… low frequency analogue capable of simulating non-linear characteristics of a tunnel diode is described. The parameters of the analogue are easily variable enabling the tolerance of circuits t variations in tunnel diode parameters to be readily ascertained. Further, the large magnitude of the …
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Comportamento teórico-experimental de pórticos planos de concreto armado com pilares esbeltos
… those given by the computer program PORT2, for non-linear analysis of reinforced concrete plane frames. ln view of the existing difficulties to represent theoretically the complex behaviour of a reinforced concrete structure, it can be said that the performed theoretical analyses simulated …
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Análise estática não-linear de estruturas marítimas estaiadas em microcomputadores
… a microcomputer program developed for static, non-linear analysis of guyed structures. The program may consider geometrically non-linear space truss elements, using an updated Lagrangean formulation for large displacement analysis. Geometrical and material non-linearities may also be considered …
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A utilização do minicomputador para a solução de problemas de Engenharia Civil
… information and the different methods of analysis that could be used: linear and non linear analysis and eigenvector-eigenvalue solution. The internal system structure is discussed next, describing the strategy for handling information in a rational way, in order to optimize the time of …
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Análise não-linear de estruturas reticuladas espaciais de concreto armado
Present an automatic program for non-linear analysis of spacial frames of reinforced concrete, including verification of structures under definite loading and research on its load-bearing capacity for a given disposition of loads. On its development are considered both the non-linearity of the …
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An incremental, non-linear displacement method for the elastic analysis of space trusses and plane frames
… finite deflections is developed for the elastic non-linear analysis of space trusses. In the incremental loading procedure the elastic critical load of a structure is determined by establishing the load at which the determinant of the stiffness matrix passes through zero. Chord shortening due to …
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Estabilidade local de painéis cilíndricos enrijecidos
… bifurcation loads and also results from a non-linear analysis of elastic local stability of stringer stiffened cylindrical shells under axial compression are presented. The effects due to stiffeners spacing and slenderness as well as modal interaction and inicial geometric imperfections are …
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Influência da interação entre modos e imperfeições na flambagem de cascas cilíndricas axialmente comprimidas
Results from a non-linear analysis of circular cylindrical shells under axial compression are presented. Included in this analysis are the effects that mode coupling and initial geometric imperfections have on the non-linear buckling behaviour. It is shown, through the inspection of energy …
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The design and analysis of tension fabric structures
… reviews the topics that encompass the design and analysis of tensioned fabric structures. First, an overview of the conceptual basis of tensioned membranes is discussed, as well as the different shapes that are formed using manipulations of the basic concept. Since the material properties play a …
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A study of interaction effects due to bored tunnels in clay
… bored tunnel constructions using superposition. Non-linear finite element analysis is used for the same situations, as well as for analyzing the stresses in the tunnel lining. The use of superposition was tested using the non-linear analysis to check whether or not its use with empirical methods …
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On the Need to Acquire Data for the Advancement of Shock Prediction
… because existing data is either too simple, the analysis is stymied by an insufficient finite element model, or the results of prior work are proprietary. This report demonstrates that even on a simple structure, 1) the historical empirical technique does not correctly predict the environment, …
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