5. Summary of results

The results obtained are satisfactory. A good correspondence is observed between the « global » calculation and the calculation on a sector with a double diameter cyclic symmetry condition.

Of course, modeling B does not find either the first natural mode, which has no modal diameter, or the following two natural modes, which correspond to modes with a modal diameter.

Modeling A (3D)		B modeling (3D, cyclic symmetry)
Fashion no.	Frequency \((\mathrm{Hz})\)	Fashion no.	Frequency \((\mathrm{Hz})\)
\(1\)	\(31.4503\)
\(2\)	\(31.975\)
\(3\)	\(31.975\)
\(4\)	\(33.4833\)	\(1\)	\(33.4833\)
\(5\)	\(33.4833\)	\(2\)	\(33.4833\)
		\(3\)	\(44.8997\)
		\(4\)	\(44.8997\)
		\(5\)	\(80.2363\)