Vibration Reduction Design of Exhaust Pipeline Systems of Vessel Main Engines
Due to the stimulation of the vibration of the main engine structure and the pulsating pressure of the exhaust gas,the vibration of the exhaust pipeline of the main engine will happen during the operation.In order to reduce the vibration and noise of the smoke exhaust pipeline transmitting to the ship structure and nearby cabins,it is necessary to carry out vibration reduction design.In this paper,the principle of vibration reduction design,layout process and the matters for attention of the smoke exhaust pipeline system of the ship main engine were studied,the selection of vibration reduction components was checked by finite element simulation,and the vibration isolation effect was tested and verified on the real ship.The results of the real ship test show that in the frequency range of 10-10 000 Hz,the smoke exhaust pipeline vibration reduction devices have a good vibration isolation effect,which is above 15 dB.The study has provided a reference for the vibration reduction design of ship smoke exhaust pipeline systems.
vibration and waveexhaust pipelinevibration transmissibilityvibration reduction design
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