Research Article

Modeling of a Tethered Testbed for a VTVL Vehicle

Figure 9

Free-body principle for a rope in NEST experimental setup. Intersect the rope at the turning wheel leads to virtual forces (at traverse) and (at virtual suspension point ) which have to be equal for satisfying equilibrium of forces at the whole system. The weight force is divided into its three parts, (traverse side), (lander side), and (expander part).
(a) Whole System
(b) Free-body diagram traverse system
(c) Free-body diagram lander system