THE WOLA MARINE HIGH-SPEED DIESEL ENGINES DIAGNOSTICS USING VIBRO-ACOUSTIC METHODS

Internal combustion reciprocating engines are the main source of propulsion of ships. They are also the most frequently use to drive electrical generators on ships. In the case of naval vessels with smaller displacement, these are mostly medium and high-speed diesel engines. One of the types of engines widely used on the Polish Navy warships is the engine WOLA type H. This engine occurs on boards a ships in “6 – in Line” and “12 – in Vee” cylinders configurations. Due to the age, level of technology and type these engines can be considered as little susceptible diagnostically. For this reason, an attempt was made to check one of the popular vibro-acoustic signal analysis methods CPB analysis in comparison with RMS value in terms of its use to diagnose technical condition of fuel system and valve gear mechanism of engines family WOLA type H.