It is showed in the range of scientific works that the elastic-damping properties of this vibroisolators don’t allow
to provide comfortable conditions for operator work because their abilities of vibration damping aren’t enough
especially at low-frequency vibrations. Decreasing of vibration load level on tractor operator’s working place by
means of using of vibrations dynamic dampers in a cabin suspension (in other words – dynamic absorbers or
dynamic vibroisolators). Dynamic vibration dampers installed in the cabin suspension were proposed by authors for
decreasing of vibration load level on operator workplace. These dampers represent devices included in the structure
of vibrating system for damping of vibrations with specific frequencies and partially absorb vibration energy. They
consist of additional masses connected to main mass of vibrating system due to elastic-damping elements. Value of
additional mass and elastic and damping parameters of damper are calculated at design stage in that way to provide
maximal effective damping of vibrations of main mass with specific frequencies [9, 11, 13].