6. D modeling

6.1. Characteristics of modeling D

Identical to modeling A with the addition of proportional viscous damping such as:

\([C]=\alpha [K]+\beta [M]\)

with,

\(\alpha =1.14110022\times {10}^{-4}\) and \(\beta =230.4812469\)

We use the Sorensen method (METHODE = “SORENSEN”) to calculate the eigenmodes.

6.2. Characteristics of the mesh

Same as modeling A.

6.3. Tested sizes and results

Non-regression tests only.