3. B modeling

3.1. Geometry and meshing

The geometry and the mesh are the same as in modeling A.

3.2. Material properties

For modeling B, damping is introduced using the Rayleigh coefficients defined in section 1.2.

3.3. Tested sizes and results

In this test, for the natural modes 2 and 3 of the assembly, we compare the phase difference between the real and imaginary parts of the movements of the three nodes represented by green dots in FIG. 1.1-1. We test the value of the ratio of the imaginary and real parts of the displacement. The results are summarised in table 3.3-1

	Im (N1)/Re (N1)	Im (N2)/Re (N2)	Im (N3)/Re (N3)
Mode 2	5.20615470017E-08	-1.76935137026E-08	Untested (~0)
Mode 3	-6.32045219166E-08	Untested (~ 0)	-7.86254989276E-0

Table 3.3-1: Summary of the results tested for modeling B