Consider the vibroacoustic analysis of an internal combustion engine one should take
into account the fact, that a high level of nominal vibrations is generated, resulting from the
target function realization. Internal combustion engine is an object under the influence of
internal and external inputs. Among them there are mainly: burning pressure, the movement
of the piston-crank mechanism, inputs from the timing gear system, inputs resulting from the
work of the fittings of the engine, inputs transmitted from the motor-car body and the drive
transmission system. One of the most important inputs during the work of the piston-crank