A pneumatic cylinder driving polyhedron mobile mechanism
Received date: 13 Oct 2011
Accepted date: 20 Nov 2011
Published date: 05 Mar 2012
Copyright
A novel pneumatic cylinder driving polyhedron mobile mechanism is proposed in this paper. The mechanism is comprised of 5 tetrahedrons which includes a pneumatic cylinder in each edge. It locomotes by rolling and the rolling principle refers to the center of mass (CM) of the mechanism moved out of the supporting area and let it tip over through the controlling of the motion sequence of these cylinders. Firstly, the mathematical model is built to analysis the relation between the configuration and the CM of the mechanism. Then, a binary control strategy is developed to simplify and improve the control of this mobile mechanism. After that, dynamic simulation is performed to testify the analytical validity and feasibility of the rolling gaits. At last, a prototype is fabricated to achieve the rolling successfully to demonstrate the proposed concept.
Key words: mobile mechanism; polyhedron; cylinder
Wan DING , Sung-Chan KIM , Yan-An YAO . A pneumatic cylinder driving polyhedron mobile mechanism[J]. Frontiers of Mechanical Engineering, 0 , 7(1) : 55 -65 . DOI: 10.1007/s11465-012-0301-z
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