柴油机拉缸故障的仿真研究  

Simulation Research on Cylinder Scuffing of Diesel Engine

作　　者：黄映云[1] 康桂东 刘鹏[1] 

机构地区：[1]海军工程大学船舶与动力学院 [2]92376部队

出　　处：《柴油机》2012年第2期4-6,10,共4页Diesel Engine

摘　　要：基于虚拟仿真手段,在曲轴柔性化基础上建立了某型柴油机轴系多体动力学模型,对其进行了拉缸时的扭振特性分析。分析表明:柴油机拉缸时,轴系的低次简谐1.0次振幅有较大的增加;各主谐次的扭振幅值较正常情况也增大。这一结论可为柴油机的在线监测与拉缸故障诊断提供依据。The multi-body dynamic model was established on the base of flexible shaft by virtual simulation tools.Then the torsional vibration during cylinder scuffing was analyzed.The results showed that the low-order simple harmonic amplitude of 1.0 was greatly increased and the main harmonic amplitude was also increased compared with normal condition.This conclusion provides a reliable basis for diesel engine cylinder on-line monitoring and scuffing fault diagnosis.

关 键 词：柴油机 多体动力学 拉缸 仿真 

分 类 号：TK428[动力工程及工程热物理—动力机械及工程]