Mobility Analysis of Symmetric Deployable Mechanisms Involved in a Coplanar 2-Twist Screw System

An intuitive approach for the mobility analysis of deployable mechanisms involved in a coplanar 2-twist screw system is proposed. The proposed approach can be used to explain the mobility of the deployable Bennett mechanism, Myard mechanism, and Bricard mechanism. Some novel deployable mechanisms could be found based on the proposed approach. The proposed approach can also be applied to the mobility analysis of multiloop deployable mechanisms.