Development of measures to improving of the experimental equipment performance for vibroacoustical researches of internal-combustion engines

On the basis of the analysis of world experience the design of a experimental equipment for vibroacoustical research of internal-combustion engines is designed. Keen attention at the designing is given to problem of "spurious" noise decrease for drive elements of an experimental equipment. Results of the experimental investigations of "spurious" noise level are presented. The measures on improvement of acoustic quality of an experimental equipment are offered. Experimental results demonstrate noise reduction effect in 25...30 dBA due to application of the proposed measures.