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Full-Text Articles in Applied Mechanics
Modal Characterization And Structural Dynamic Response Of A Crane Fly Forewing, Jose E. Rubio
Modal Characterization And Structural Dynamic Response Of A Crane Fly Forewing, Jose E. Rubio
University of New Orleans Theses and Dissertations
This study describes a method for conducting the structural dynamic analysis of a crane fly (family Tipulidae) forewing under different airflow conditions. Wing geometry is captured via micro-computed tomography scanning. A finite element model of the forewing is developed from the reconstructed model of the scan. The finite element model is validated by comparing the natural frequencies of an elliptical membrane with similar dimensions of the crane fly forewing to its analytical solution. Furthermore, a simulation of the fluid-structure interaction of the forewing under different airflows is performed by coupling the finite element model of the wing with a …
Structural Response Analyses Of Piezoelectric Composites Using Nurbs, Vijairaj Raj
Structural Response Analyses Of Piezoelectric Composites Using Nurbs, Vijairaj Raj
Electronic Thesis and Dissertation Repository
Variational method deduced on the basis of the minimum potential energy is an efficient method to find solutions for complex engineering problems. In structural mechanics, the potential energy comprises strain energy, kinetic energy and the work done by external actions. To obtain these, the displacement are required as a priori. This research is concerned with the development of a numerical method based on variational principles to analyze piezoelectric composite plates and solids. A Non-Uniform Rational B-Spline (NURBS) function is used for describing both the geometry and electromechanical displacement fields. Two dimensional plate models are formulated according to the first order …