Experimental and Theoretical Investigations of a Displacement-Amplified Torsional Damper

Figure 5

Bilinear mechanical model. K₁: initial stiffness, K₂: stiffness after yield, K_e: equivalent stiffness, (): (yield displacement, yield shear force), (): (maximum displacement, shear force corresponding to the maximum displacement), F₀: feature strength of the damper (shear force provided by the damper when the displacement is zero), : feature displacement of the damper (displacement of the damper when the shear force is zero), (): displacement of the yield point under reverse loading and corresponding shear force.