| 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。 |
| 关键词: 柴油机 多体动力学 拉缸 仿真 |
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| Simulation Research on Cylinder Scuffing of Diesel Engine |
| Huang Yingyun,Kang Guidong,Liu Peng |
| School of Marine and Power Engineering,Naval University of Engineering,Hubei Wuhan 430033;9237;6.Army, Guangdong Shantou 515073 |
| Abstract: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. |
| Key words: diesel engine multi-body dynamics scuffing simulation |
