Master of Science (MS)
Civil and Mechanical Engineering
First Committee Member
Samaan G. Ladkany
Number of Pages
The Finite Element Method is used to determine the fundamental mode shapes and frequencies of fan structures. The analysis is performed on five fan structures, having different geometries, under static conditions and under centrifugal forces at various angular velocities. The results of the analysis are correlated with experimental data. The Southwell Coefficient, which takes into account the effect of centrifugal stiffening/softening, is determined for each fan and used for the prediction of its dynamic response and critical speeds. The research led to a study of the influence of riveted spider-to-blade connections on the vibration response of propeller fans; This thesis also presents a mathematical transformation analysis and an explanation of a frontend computer program, to the finite element system GIFTS, which facilitates the procedure of analyzing the vibration response of propeller fans under static or operating conditions, by the Finite Element Method. (Abstract shortened with permission of author.).
Analysis; Dynamic; Element; Finite; Methods; Finite Element Method; Rotating; Structures
Civil engineering; Mechanical engineering
University of Nevada, Las Vegas
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Rouas, Mohamed Said, "Dynamic analysis of rotating fan structures by the Finite Element Method" (1989). UNLV Retrospective Theses & Dissertations. 41.
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