| 船用高速大功率柴油机运行可靠性与再设计技术 |
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| 引用本文： | 欧阳光耀.船用高速大功率柴油机运行可靠性与再设计技术[J].内燃机学报,2008,26(Z1). |
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| 作者姓名： | 欧阳光耀 |
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| 作者单位： | 海军工程大学船舶与动力学院 |
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| 摘 要： | 针对高速大功率船用柴油机在运行过程中出现的连杆断裂、轴瓦异常磨损等问题,提出了二次模型的分析方法,即以整体计算的结果作为边界条件,对局部模型再进行有限元分析。结果表明,二次模型分析方法适合于分析具有大型复杂结构、复杂边界条件的力学分析,能准确反映模型局部的细微特征。实船运行验证了方法的有效性,为高速大功率柴油机运行可靠性及再设计提供了有益的思路。
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| 关 键 词： | 大功率柴油机 结构设计 有限元 二次模型 |
Techniques of Re-Design and Operation Reliability in High-Speed and High-Power Diesel Engine |
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| OUYANG Guang-yao.Techniques of Re-Design and Operation Reliability in High-Speed and High-Power Diesel Engine[J].Transactions of Csice,2008,26(Z1). |
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| Authors: | OUYANG Guang-yao |
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| Abstract: | According to the abnormal phenomenas,uch as connecting-rod broken and bearing worn occurred in working process of high-speed and high-power marine diesel enginet,he three-dimension models of connecting rod and bearing is proposed,The whole model is analyzed in two steps.Firstlyt,he whole connecting rod model is analized.Then based on the former resultst,he bearing model is re-analyized.Results showed that the two-step model method was suitable to describe fine part o models with complicated construction and boundary condition.The caculation accuracy is obviously higher than that of the prevous one,testing proved that is an effective way and provides a new approach for operation reliability and re-designing on high-speed and high-power diesel engine. |
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| Keywords: | High-power diesel engine Construction design FEA Two-step model |
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