Linear Analytical Solution of an Active Tensegrity Unit

Results of the linear closed form solution of an active or adaptive tensegrity unit, as well as its numerical analysis using finite element method are presented. The shape of the unit is an octahedral cell and it is formed by thirteen members (eight cables, four edge struts and one central strut). The central strut is designed as an actuator that allows for an adjustment of the shape of the unit which leads to changes of tensile forces in the cables. Since the unit is diagonally symmetrical, it may be simply solved as planar biconvex cable system with one central strut.