Axial and Radial Stiffness of
a Diaphragm
Students: Stefan Lente, Florian Rehsöft
Advisor: Prof. Peter J. Schuster
California Polytechnic State University
This project involves the use of FEA code software on a part of a CNC Lathe Spindle produced by the Spinner
Machine Tools Company and used in the TD Series Turning Centers. The project is divided into two main parts. On the one hand an analysis of a membrane was performed to determine stiffness of that membrane in the axial and radial directions. Results of a similar part were available. This reference model was analyzed first, to be able to compare and validate the results of the new membrane. On the other hand a study of the influence of different element types was realized as well as the benefits of simplifying or adding complexity to the analysis.
The element type which results into an accurate solution with a low computational time is sought. With the knowledge of the possible model variations and the element type to use, a recommendation for future analyses on similar parts is given.
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