Рас ЧетНЫе ИсследоВ аНИЯ В лИЯНИЯ ГеометРИЧескИХ ПаРаметР оВ РезоНаНсНоГ о (ПеРФ оРИР оВ аННоГ о) Г лУШИтелЯ ШУма На ЭФФектИВНость сНИЖеНИЯ УР оВНЯ ШУма

The paper presents the research on the effectiveness of noise reduction of power plants using mufflers. Recent computational studies can be used in the construction of silencers in order to find the optimal solution on the basis of the degree of noise reduction, layout and economic considerations. The paper presents analytical expressions to quantify the key values of the studied subject. The factors that affect the ability to reduce the energy of the sound waves, selected geometrical parameters of the perforations in the walls of the muffler, and the amount of resonance chamber. The authors provide comparative results of studies of the effectiveness of the muffler according to the relative pitch and diameter of the perforations as well as the volume of the resonance chamber. The final section summarizing the conclusions of the calculations and a brief analysis of the physical nature of the revealed laws. It was found that an increase in volume of the chamber muffler increase its size and weight. The optimal solution of this structural contradictions can be found on the basis of thorough feasibility analysis.