Variable geometry truss and its application to deployable truss and space crane arm

Dynamic Simulation of Adaptive Truss Consisting of Various Types of Truss Members

“…Implementing functional truss members, it can exhibit various types of mechanical and geometrical characteristics. A typical example is the VGT, the variable geometry truss (Miura et al, 1985), that has the ability to change its geometry by means of the length-adjustable truss members. This type of mechanical system is also referred to as an adaptive truss (Chen & Wada, 1993).…”

“…One of such examples is a variable geometry truss (VGT) consisting of a number of length-adjustable actuated members (Miura et al, 1985). Adjusting its actuated truss member lengths, it can change its geometry as well as its mechanical characteristics.…”

Inverse kinematic analysis for triple-octahedron variable-geometry truss manipulators

“…As soon as x i and y i …iˆ1; 2; 3 † are found,  1 ;  2 ;  3 and 1 ; 2 ; 3 can be evaluated from triangular formulae, and then the position vectors of points A i , B i , C i …iˆ2; 3 † in the oxyz coordinate system can be computed by substituting  1 ;  2 ;  3 and 1 ; 2 ; 3 into equations (1) and (2). Furthermore, the lengths of actuator members l i …iˆ1; 2; .…”

Kinematics of Adaptive Truss Permitting Nodal Offset (Configuration and Workspace Reach

“…Much effort is devoted in the research of the adaptive structure from the various viewpoints, such as the deployable structure [6,7], space crane [6,8] or robotic manipulator [9][10][11][12]. When the one-dimensional configuration of the adaptive truss, such as the variable geometry truss [6,7,12] or the helical mast-type truss [7,[9][10][11], is considered, six members should be connected at a truss node in general in such a way that every member can freely rotate with respect to three independent axes like, in essence, spherical joint connections. It is quite difficult, in practice, to provide such a special spherical joint connecting multiple members.…”