Internal combustion motors are multifactor source of powerful vibration-acoustic signals. The motor’s vibrations are caused by unevenly rotating masses – inertia of reciprocating masses, centrifugal inertia and its moments, gas dynamic processes – power of gas pressure, inlet/outlet gas flow, fuel injection, and, also, impact and friction between elements and details of assemblies and mechanisms.
Kostyukov V.N., Naumenko A.P. Vibration analysis of motors // Machine manufacturing. Encyclopedia. - Moscow: Mashinostroenie. Dvigateli vnutrennego sgoraniya. - 2013. - Vol. IV-14. - Par. 6.2.5. - p.679-682
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