Mobility of Overconstrained Parallel Mechanisms

By J. Dai, Zhen Huang, H. Lipkin. 2006

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A method for force analysis of the overconstrained lower mobility parallel mechanism (2015, background): “The overconstrained lower mobility parallel mechanism (LMPM) is the LMPM that includes common constraints or redundant constraints [1–4].”
Variable motion/force transmissibility of a metamorphic parallel mechanism with reconfigurable 3T and 3R motion (2015, background): “Screw-based analysis [18,31] for the configuration in Fig.”
Synthesis, Mobility, and Multifurcation of Deployable Polyhedral Mechanisms With Radially Reciprocating Motion (2014, methodology): “[18] developed a way of analyzing expandable polyhedrons based on linkage decomposition and the screw system approach [21–24].”
A way of relating instantaneous and finite screws based on the screw triangle product (2017, methodology): “These theories were directly used in mobility analysis of different types of parallel mechanisms, including those having overconstraints [9].”
Reconfigurability and unified kinematics modeling of a 3rTPS metamorphic parallel mechanism with perpendicular constraint screws (2013, background): “As screws [35] naturally present the relations of geometric constraints among the joints and limbs in parallel mechanisms, they show great advantage in describing the topology change of metamorphic parallel mechanisms as illustrated in this paper.”