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5 articles for “large amplitude vibration”
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Thermal Post-buckling and Large Amplitude Vibration Analysis of Composite Beams vis-Ã -vis Isotropic Beams
Abstract: Thermal post-buckling and large amplitude free vibration analysis of composite beams is directly investigated based on an analogous relationship derived from the behavior of isotropic beams. The applicability of simple analogous relationship derived for the use of composite beams is demonstrated for various layup schemes of symmetrically laminated beam with wide variety of boundary conditions. Numerical accuracy of the proposed approach show an excellent agreement with available finite element solution …
Published in Journal of Aerospace Engineering & Technology · Vol. 3, Issue 2, 2013 · pp. 17–24 Read article
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Vortex-Induced Vibration of a Circular Cylinder at Low and Subcritical Reynolds Numbers-Part I: Low Reynolds Numbers
Abstract: The vortex-induced vibration of a circular cylinder at low and low subcritical Reynolds numbers is studied numerically over wide ranges of the influencing parameters. The cylinder dynamics is modeled using a spring-damper-mass system and the fluid dynamics is simulated using the two-dimensional approximation. An implicit, collocated moving grid finite volume algorithm implemented on an unstructured triangular mesh is adopted to solve the fluid dynamic equations. The numerical simulation confirms that …
Published in Journal of Aerospace Engineering & Technology · Vol. 5, Issue 2, 2015 · pp. 35–60 Read article
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CFD Analysis of Effect of Forced Vibration on Heat Transfer in Laminar Flow
Abstract: Vibration of pipes conveying fluid is an important problem present in installations which are normally used in petroleum industries, hydropower systems, food processing industries, chemical plants and hydraulic power systems. Research is needed to further understand and be able to predict the flow behavior and investigate ways of improving their processing. The current work involves the numerical simulation of flow and heat transfer under an externally imposed mechanical vibration. CFD …
Published in Journal of Thermal Engineering and Applications · Vol. 2, Issue 1, 2015 · pp. 1–9 Read article
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Damping Techniques for Controlling Edgewise Vibration of Wind Turbine Blades
Abstract: AbstractEdgewise vibrations with low aerodynamic damping are of particular concern in modern multi-megawatt wind turbines, as large amplitude cyclic oscillations may significantly shorten the life-time of wind turbine components, and even lead to structural damages or failures. In this paper, five types of damping methods are studied. The tuned liquid dampers utilize the sloshing motion of the fluid to suppress structural vibrations and become a natural candidate for damping vibrations …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 7, Issue 2, 2017 · pp. 26–33 Read article
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Dynamic Behavior of Coal Ash
Abstract: Coal ash is deposited in large quantities in the ash pond. It is used as structural fill and for dyke construction. The behavior of ash under dynamic conditions is not well investigated. The present work attempts to quantify some of the parameters, which influences the dynamic stability especially liquefaction potential of coal ash. Several investigations conducted on coal ash suggest that ash fills have low SPT value. This supports the …
Published in Journal of Geotechnical Engineering · Vol. 1, Issue 2, 2014 · pp. 7–11 Read article