... author upon reasonable request. References [1] Gogu , G. , 2005 , “ Mobility of Mechanisms: A Critical Review ,” Mech. Mach. Theory. , 40 ( 9 ), pp. 1068 – 1097 . 10.1016/j.mechmachtheory.2004.12.014 [2] Hervé , J. M. , 1978 , “ Analyse structurelle des mécanismes par...

...Tao Shen; Md Rayhan Afsar; Md Rejwanul Haque; Eric McClain; Sanford Meek; Xiangrong Shen With the rapid expansion of older adult populations around the world, mobility impairment is becoming an increasingly challenging issue. For the assistance of individuals with mobility impairments...

...Xiaoke Song; Hongwei Guo; Ruiwei Liu; Fei Meng; Qiping Chen; Younan Xu; Rongqiang Liu In this study, the mobility of the threefold-symmetric Bricard linkage and its network are analyzed using screw theory. First, the screw motion equation of the linkage is derived. By applying the modified Grübler...

...Jingjun Yu; Xin Dong; Xu Pei; Xianwen Kong In this paper, a visual graphic approach is presented for the mobility and singularity analysis of mechanisms with no helical pair. The presented method is established upon the reciprocal screw system theory. Using the visual graphic approach, the mobility...

...Chao Chen The mobility or degrees of freedom is a fundamental issue in mechanisms and robotics. In this work, we investigate the mobility of parallel manipulators from a new point of view, and introduce a new concept, the pattern of transform matrix. It is shown that both general and modified...

...Guowu Wei; Xilun Ding; Jian S. Dai This paper investigates the mobility and kinematics of the Hoberman switch-pitch ball, and particularly, its variant that does not resort to bevel gears. The ball variant is a general case of the Hoberman switch-pitch ball and constitutes the ball. This paper...

...Paul Milenkovic For a platform connected to its base through two chains forming a single loop, the instantaneous mobility may be expressed by a set of motion screws that is in the intersection of the sets of motion screws for each of the two chains. A recent work shows that the platform remains...

... configurations. This change in mobility is completed by two cases illustrated by a 3 ( rT ) P S metamorphic parallel mechanism having variable mobility from 3 to 6 and a 3 ( rT ) P ( rT ) parallel mechanism having various configurations including pure translations, pure rotations, and mobility 4. In the second...