Numerical Simulation of Damping Performance of Elastically Supported Underground Arch Structures Subject to Penetration and Explosion

Figure 8

The first five orders of modal shapes for the arch with rigid support. (a) ω1. (b) ω2. (c) ω3. (d) ω4. (e) ω5.

(a)

(b)

(c)

(d)

(e)