Research Article

Free Vibration Response of a Frame Structural Model Controlled by a Nonlinear Active Mass Driver System

Figure 1

Multistory frame structure with AMD made of electric torsional servomotor (element 1) and ball screw (a); detailed view of ball screw components (b): additional carried mass , return tube , screw , bearing balls , and ball nut .
745814.fig.001a
(a)
745814.fig.001b
(b)