Polyhedral single degree-of-freedom expanding structures

Some engineering applications require structures to expand and contract in size, while retaining their exterior shape. The applications range from mundane daily life objects to more fancy art structures. In contrast to a multiple degree-of-freedom structure, a single degree-of-freedom structure can be driven by a single actuator, reducing the cost and simplifying the control. In this paper, we study single degree-of-freedom structures that can be formed by a lattice of single degree-of-freedom polyhedral expanding units. Due to built-in symmetries, the entire structure can expand and contract as one of the units in the structure is actuated.

[1]  Anthony Pugh,et al.  Polyhedra: A Visual Approach , 1976 .

[2]  Mark Yim,et al.  PolyBot: a modular reconfigurable robot , 2000, Proceedings 2000 ICRA. Millennium Conference. IEEE International Conference on Robotics and Automation. Symposia Proceedings (Cat. No.00CH37065).

[3]  Marsette Vona,et al.  Self-reconfiguration planning with compressible unit modules , 1999, Proceedings 1999 IEEE International Conference on Robotics and Automation (Cat. No.99CH36288C).

[4]  Sunil K. Agrawal,et al.  Analytical Dynamics of Unrooted Multibody Systems with Symmetries , 1999 .