Scaling and dynamics of special machines

Rotary screw machines (RSM) are widely known as multipurpose vehicles. RSM easily overcome impassable swamps, snow-covered, off-road, ice surface. A significant problem for the creators of vehicles with rotors is the high vibration loads on the operator and machine units, which require multiple experimental studies. A scaled-down model of a vehicle is often used for experiments. The model of the RSM is included in the experiment, replacing not only the object of research, but also the conditions in which it is studied. Strengthening the role of the theoretical side of research, there is a connection between the formulation of the experiment and its results with the object of research. Calculation and calculation of the elements of proportionality is a hard necessity. The article proposes a complex for calculating scale factors when testing vibration loading of machines equipped with screw rotors.