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 7 of 7 for “"DYNAMICS OF STRUCTURES"”.
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Modeling, Identification and Simulation of Dynamics of Structures With Joints and Interfaces
… effects are accounted for along continuous edges of the elements. Thus, micro-scale stick-slip behavior along the joint interfaces can be captured even with a relatively coarse mesh. Numerical examples demonstrate that the general joint interface element is capable of accounting for the friction …
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Structural vibration damping using lightweight, low-wave-speed media
Incorporation of a low-density, low-wave-speed medium (LWSM) into a structure yields significant damping if the speed of wave propagation in the medium is low enough for standing waves to arise in it. In this thesis, we characterize wave propagation in low-density granular media and foams for use …
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System Identification via the Proper Orthogonal Decomposition
Although the finite element method is often applied to analyze the dynamics of structures, its application to large, complex structures can be time-consuming and errors in the modeling process may negatively affect the accuracy of analyses based on the model. System identification techniques …
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Dynamic Instabilities in Structures with Nonholonomic Constraints
This thesis delves into the dynamics of structures subject to velocity dependent restrictions, which are known as nonholonomic constraints. These constraints are applied to elastic structures, and their nonlinear dynamics are analyzed within the framework of bifurcation and stability theory. …
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ΕΝΕΡΓΟΣ ΕΛΕΓΧΟΣ ΤΩΝ ΚΑΤΑΣΚΕΥΩΝ
THE DISSERTATION DEALS WITH THE ACTIVE CONTROL OF STRUCTURES. CONTROL IS APPLIED TO THE STRUCTURE EITHER IN THE FORM OF FORCES OR IN THE FORM OF DISLOCATIONS.THE PROBLEM OF ACTIVE CONTROL OF STRUCTURES IS FORMULATED AND THEN THE SOLUTION METHOD IS PROPOSED ACCORDING TO THE THEORY OF MATHEMATICAL …
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On the dynamics of rigid and flexible structures under complex flows
… interaction (FSI) is a ubiquitous phenomenon of high relevance in engineering systems. During the past decades, substantial efforts have been placed on characterizing the dynamics of structures under a wide range of flow. However, associated phenomena under turbulence are poorly understood. …
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Sulla progettazione in zona sismica di strutture dotate di dissipatori fluido-viscosi: proposta di una metodologia
… is focused on the technical characteristics of these devices, their mechanical behavior and the latest evolution of the technology whose they are equipped. In the second section we report the definitions and the guide lines about the design of these devices included in some international …