Evaluation of the Modal Coupling Effect in Midstory Isolation Systems Based on Random Vibration Analysis

<div>Contour plots of Raui with various εls and εus: (a) r1 = 0.2 and r2 = 0.7, (b) r1 = 0.5 and r2 = 0.7, (c) r1 = 0.7 and r2 = 0.7, and (d) r1 = 0.8 and r2 = 0.7.</div>

Shock and Vibration

fig5

Figure 5

Figure 5: Evaluation of the Modal Coupling Effect in Midstory Isolation Systems Based on Random Vibration Analysis 