COMPARATIVE ANALYSIS OF INTERNAL COMBUSTION ENGINE STRUCTURE-BORNE NOISE RESEARCH METHODS FOR DIFFERENT DESIGN LEVELS

Abstract

The article considers the features of modeling and calculating the structure-borne noise of an internal combustion engine at different stages of its design: external and internal design. A comparison of methods and software tools for calculating the structural noise of the engine from the working process and piston tilts, the necessary initial data and calculation results at the stages of external and internal design is carried out. It is shown that with a detailed study of the working process and the design of the engine it is advisable to use object-oriented complexes, for example, AVL Excite, which allows you to get detailed information on the sound field of the engine to determine the main parts-noise emitters. If it is necessary to calculate the transient modes the software complexes "Working process " and "Internal Combustion Engine Acoustics" developed at the Department of "Heat Engineering and Automotive engines" of MADI can be used.