381834.fig.007
Figure 7: Normalized damper force-displacement and velocity loops for dampers located at stiff and flexible edges for passive-on algorithm under Imperial Valley, 1940 earthquake ( 𝑇 𝑦 = 1  s, Ω 𝜃 = 1 , 𝑒 𝑥 / 𝑟 = 0 . 3 ).