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Meshfree Modeling of Vibrations of Mechanical Strctures

In this work, a pioneering application of the Solution Structure Method (SSM) for structural dynamics problems is presented. Vibration analysis is an important aspect of any design-analysis cycle for which reliable computational methods are required. Unlike many meshfree methods, SSM is capable of {\it exact treatment of all prescribed boundary conditions}. In addition, the method is capable of using basis functions which do not conform to the shape of the geometric model. Together, this defines an unprecedented geometric flexibility of the SSM.
This work focused on the development of numerical algorithms for 2D in-plane and 3D natural vibration analysis and 2D in-plane dynamic response. The convergence and numerical properties of the method were evaluated by comparing meshfree results with those obtained using traditional Finite Element Analysis implemented in Solidworks and ANSYS.
The numerical experiments presented in this work illustrate that the Solution Structure Method possesses good convergence and in some cases, such as geometries with partially fixed boundaries, this method converges much more rapidly than traditional FEA. Finally, in addition to complex boundary conditions, this method can easily handle complex geometries without losing favorable convergence properties.

Identiferoai:union.ndltd.org:fiu.edu/oai:digitalcommons.fiu.edu:etd-2151
Date15 November 2013
CreatorsKosta, Tomislav
PublisherFIU Digital Commons
Source SetsFlorida International University
Detected LanguageEnglish
Typetext
Formatapplication/pdf
SourceFIU Electronic Theses and Dissertations

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