Resistance corresponding to the initial moment of movement, explaining the physical essence of friction (roughness, sticking, deformation), and also include the emergence of the force of inertia. The latter is determined by the work of the mass to accelerate (y = mv) and therefore cannot reach large values, since the speed of the speed is extremely insignificant. Almost due to the discontinuity of the action of moving devices (rearrangement of jacks), the force of inertia has to be overcome repeatedly. The size of the initial resistances cannot exceed 10 – 20 °/0 from friction force.
The cause of harmful resistances is:
1. Uneven siege of a grillage or cobblestone cells or the base under them, causing a distortion of a flat surface of the paths, which leads to: a) overload above the limit values of individual groups of rollers and stemming from here; b) the need to overcome the rise in some areas of the rolling surface.
2. The unequal or insufficiently accurate diameter of the rollers, non-cylindic, gross processing of the surface of the rollers, skews of rollers, entailing local jams and overloads in separate rollers or in groups of rollers.
3. The mismatch of the equivalent power of all movements with the vertical plane of the direction of movement spent through the center of gravity of the building.
In addition, additional resistance is always the way when moving along the morning path overcoming the rise of the front in groups of rollers, since at any given moment the movement the building goes from a section of the path, already squeezed by its heaviness, to still unexplored (t. e. not yet received shrinkage) front site.
