船舶柴油机及其相关设备运行状态的良好是船舶安全的重要保证。长久以来,船
舶柴油机的状态监测与故障诊断技术的研究都得到了广泛的重视,其诊断的新方法和
设备也层出不穷。尤其是基于振动信号监测、处理、分析的方法,其理论基础日趋成
熟、分析测试设备日趋完善、诊断结果的准确性、可靠性大大提高。并且在船上已有
相关的应用,(Vessel safety can be better guaranteed by the good condition of marine engine
and the related equipments.　Up to now,　research as regarding to condition
monitoring and fault diagnosis technique of marine engines has　been　paid
widespread attention. New methods and equipments of diagnosis are coming forth.
With regard to the methods based on monitor, process and analysis of vibration
signals, its theory becomes more sophisticated, analysis and testing equipments
are more perfect. The veracity and reliability of diagnosis are greatly improved. And
these methods are applicable on board.)