Kysliak M. Method of improving the acoustic characteristics of the fan of turbofan engine

Current research is dedicated to the improvement of acoustic characteristics of the turbofan engine fan parameters research. During the research made an analysis of the noise sources and the methods of noise decreasing, determined scientific novelty, objective and task of scientific work. Suggested the researching method with appliance of mathematical model, which allows to implement numeral evaluation for aero-acoustic parameters of fan's blades. Based on the usage of current method, were made fan's blades modification and made a comparison with a standard fan's blade. Was made an analysis of mathematical evaluation model results of the fan area in the turbojet engine, which made with the purpose of determination influence of the blade's form on aero-acoustic parameters of fan. In this work were made a comparison of the experiment results, which conducted by DP "Ivchenko Progress" with the results of modeling, for determination of data adequacy. With the usage of current method of aero-acoustic data research, created recommendations for improving characteristics fan's area.