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 “"snap-through instability"”.
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Prediction of snap-through instability under harmonic excitation
A method is developed to predict the critical harmonic excitation of systems undergoing nonlinear oscillations. The method is based on the total energy approach which limits the system responses within a region bounded by a critical total energy in the phase space. Three one-degree-of-freedom …
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Analysis of Instabilities in Microelectromechanical Systems, and of Local Water Slamming
… curve. Here we study the symmetry breaking, the snap-through instability, and the pull-in instability of bi-stable arch shaped MEMS under steady and transient electric loads. We analyze transient finite electroelastodynamic deformations of perfect electrically conducting clamped-clamped beams and …
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Linear and nonlinear analysis of space trusses relative to cylindrical coordinates
… symmetric reticulated domes which exhibit snap-through instability and which were subjected to radially symmetric loads were analyzed both linearly and nonlinearly. Along with the entire structures, "pie slices" of the structures were also analyzed. Accuracy was observed by comparison of …
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Bending, Creasing, and Snapping of Soft, Slender Structures
… soft, synthetic material that can bend, crease, snap, wrinkle in response to external stimulus like pH, humidity, electric field or swelling. If a droplet of favorable solvent is placed on top of a thin, elastomer beam, it bends drastically to accommodate the excessive swelling stress. Keeping …
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Stability analysis of edge corrugated shells
… 2. thin shells involve buckling and sudden snap-through instability, which designers commonly address by adopting simplified methods, based on the use of empirical knock-down factors. This research stems from an original building in Rome, the Palazzetto Flaminio dome, designed by A. …
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A Variable Stiffness Energy Dissipation Device for Vibration Control of Steel Frames
… imparted to a structure. However, the use of snap-through instability to dissipate energy and control vibration is rather new. The proposed energy dissipation device is a passive device that can exhibit snap-through and snap-back behaviors; and in the process of doing so, is able to dissipate …
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SMA-Induced Deformations In general Unsymmetric Laminates
… stable configuration to the other by a simple snap-through action. This situation offers the opportunity to use shape memory alloys (SMA) attached to the laminate to generate the snap-through forces and change the shape of the laminate on command. Presented is a model which can predict …