Open AccessAcoustic characteristics of aero internal combustion engines
Author(s) -
Petr Moshkov
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1891/1/012006
Subject(s) - internal combustion engine , noise (video) , combustion , automotive engineering , cylinder , environmental science , aviation , aerospace engineering , acoustics , computer science , engineering , mechanical engineering , physics , chemistry , organic chemistry , artificial intelligence , image (mathematics)
This paper provides a brief overview of internal combustion engines’ noise generating mechanisms. Spectral, energy, and spatial characteristics of the sound field of internal combustion engines used in aviation as part of power plants of light aircraft and unmanned aerial vehicles are considered. The influence of load and flight conditions on the engine noise is considered. An example of the calculated noise estimation of a single-cylinder four-stroke engine is presented. The main methods of reducing internal combustion engine noise are formulated.