We use an already known technology to achieve the required
adhesion to the wall: A fast spinning impeller underneath the robot produces a
strong vortex, which in turn causes a partial vacuum. We optimize the efficiency
of the system using fluid dynamical simulation. Thereby, we achieve a considerably
better performance than other robots of the same type. The resulting adhesion force
reaches up to 40 Newton.
The jump off a low-rise building brings several technical
challenges. Conventional systems are designed for higher altitudes and speeds than
our robot will have to face. Thus, our solution contains a mechanism, which unfolds
a paraglider already before the robot drops off the wall. Thin carbon profiles
additionally support the opening of the paraglider. An elaborate control system
provides for an optimal trajectory and a soft landing. In addition, a lightweight
but robust shell out of fiber-reinforced plastics protects the robot against the impact.
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