Abstract:

At deployment of pantograph systems great importance has the definition of interdependencies of forces, acting on the ring. In the work are considered three different kinematic schemes of deployment. In the first case, the driving forces of e pantograph are presented as of oppositely directed pairs of forces that are applied in the connection points of levers instead impact of deployment cables; similarly in the second case in the joint connections of V-fold bars; and in the third case - in the installed in joint connections of V-fold bars compression spring. For the considered schemes in the paper graphically are presented diagrams of forces with respect to the diameter and is taken into account the friction forces.

Keywords: deployable system; geometric constraint; kinematic analysis.