VIBRATION CONTROL OF ENGINE BODY FOR TWO STROKE LOW SPEED DIESEL ENGINE USING DYNAMIC VIBRATION ABSORBER

摘要

Two stroke low speed diesel engines are used as a power supplier not only for marine vessel but also diesel power plant with a benefit of its higher mobility and durability than the other thermal engines. However in using diesel engine, there are some disadvantages such as the bigger vibrating excitation forces generated by high combustion pressure in cylinders which various kinds of vibrations are caused by. In this paper, it is theoretically studied to control engine body vibration using dynamic vibration absorber. As an actual case, dynamic vibration absorbers are designed for controlling X-mode vibration of 9K80MC-S engine on the diesel power plant and its performance is also identified by the vibration test both in shop and site.