In the recent years significant interest has been devoted to depolyable structures. Several structures belonging to this class have indeed been proposed for various applications. Interest has also been given to self-deployable structures, i.e. structural systems that can depoly or retract by means of servo-mechanisms. The paper focuses onto self-deployable structures composed by scissor-like elements. A general modelling and design approach that utilizes a non-linear formulation of the equations of motion and that includes kinematics as well as static and dynamic analyses of the system is presented. The reduction of the amplitude of vibration of such very flexible structures during deployment and when subjected to in-service loads has been afforded by transforming the same devices used for the deployment into actuators driven by an active control strategy. To derive the control laws, a bounded-state philosophy able to keep structural response parameters inside design limits has been adopted. The results of various simulations conducted on simple numerical models are presented.
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