Estimation of the losses coefficient of the vibrational energy of the woodworking technological system

Abstract

Abstract Domestic machine tool equipment is not worse than foreign analogues in terms of product processing accuracy, productivity and reliability. However, almost all machines (including woodworking ones) create sound pressure levels at the operator’s workplaces that significantly exceed the maximum permissible values. Compliance of vibroacoustic characteristics of technological equipment with sanitary standards is not only one of the most important ergonomic criteria, but also largely determines the competitiveness of domestic equipment. The article developed methods of acoustic calculation of metal-cutting equipment, which take into account the coefficient of losses of the vibrational energy of the source, which is a frequency-dependent parameter. Experimental results and regression relationships were obtained for steel plates of various thicknesses, rolled products of multiple configurations, for transport machines and for glazing elements. For woodworking equipment, this data is obtained only for multilayer materials. For various types of wood, at present, such studies have not been carried out, which in fact determines the relevance of the materials in this article.