Created Freitag 06 Mai 2016
Simulink file: ./virtual_wall.slx
A force applied by human is described as Fhuman.
An object consist of a mass (m) and a damping component (b).
The wall's constrain is generated by using a saturation function.
Wall stiffness (K) is set to 1000, and we vary the damping of the of the object (b), see file: ./process2.m