Free Vibrations of a Series of Beams Connected by Viscoelastic Layers

Table 5

Undamped natural frequencies , for example. for a fixed and is a set of intramodal frequencies, whereas and represent intermodal frequencies.

1	2.688 × 10^1	8.647 × 10^1	1.754 × 10^2	2.797 × 10^2	3.866 × 10^2
2	2.978 × 10^2	3.075 × 10^2	3.425 × 10^2	4.275 × 10^2	5.961 × 10^2
3	5.540 × 10^2	5.594 × 10^2	5.790 × 10^2	6.261 × 10^2	7.153 × 10^2
4	7.538 × 10^2	7.578 × 10^2	7.724 × 10^2	8.075 × 10^2	8.755 × 10^2
5	8.906 × 10^2	8.937 × 10^2	9.017 × 10^2	9.34 × 10^2	9.942 × 10^2