Abstract
This paper presents the results of a theoretical and experimental study of the vibro-acoustic radiation of the mini loader (MKSM-800), and analyzes the variant of reducing the noise level both of the loader on the whole and of its specific structural components. It estimates the vibro-acoustic activity of an internal combustion engine (ICE), including the cooling system, and the left and right side reduction gear. On the basis of the dynamic analysis of the mechanical system structures, the most dangerous forms of oscillations are determined, they contribute to the integral level of acoustic radiation most of all. This waveshape damping is achieved by targeted ribbing of the structural components of the reduction gear, as well as by reducing the vibroactivity of the excitation source by increasing the precision degree in gear manufacturing.
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