Abstract
Simultaneous propagation of vibrations and noise has an important role in
the task of minimizing vibroacoustic hazards on the station of operator of
the construction machinery. In many cases vibrations transferred by the
construction are processed to noise in different points of the machine. As
a result, they may increase the level of noise at the workplace. The paper
presents the proposition of a simple estimation of noise and vibration
propagation paths of the machine. On the basis of the analysis of
hydraulic excavator an effectiveness of a proposed procedure was shown.
This procedure helps to minimize the transfer of vibrations of power unit
in selected frequency ranges which led to the change of overall noise
level in operator’s cab about 5 dB.
Go to article