| 基于数值模拟的主机曲轴臂距差计算方法研究 |
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| 引用本文： | 石磊,薛冬新,宋希庚,毕晓天.基于数值模拟的主机曲轴臂距差计算方法研究[J].船舶工程,2010(6):13-16. |
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| 作者姓名： | 石磊 薛冬新 宋希庚 毕晓天 |
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| 作者单位： | 上海海事大学,商船学院,上海,201306;大连理工大学,能源与动力学院,大连,116024 |
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| 摘 要： | 主机曲轴臂距差是船舶推进轴系校中施工中的一个非常重要的技术参数,与轴系校中状态互相影响、互相制约.鉴于传统测量法具有一定的随机性和偶然性,提出在轴系校中设计阶段通过数值模拟计算和分析曲轴臂距差的新方法.以76000吨成品油轮为例,将典型轴系校中设计状态作为推进轴系有限元模型的边界条件,模拟计算曲轴臂距差值,从而实现对曲轴轴线分布状态及主机各轴承相对位置的预估.通过计算结果与测量数据的对比分析,证明数值模拟方法的可行性和优越性,对实际的校中施工具有指导意义.
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| 关 键 词： | 船舶动力装置 轴系校中 曲轴臂距差 数值模拟 |
Study on the Calculation Method of Crankshaft Deflection Based on Numerical Simulation |
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| SHI Lei,XUE Dong-xin,SONG Xi-geng,BI Xiao-tian.Study on the Calculation Method of Crankshaft Deflection Based on Numerical Simulation[J].Ship Engineering,2010(6):13-16. |
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| Authors: | SHI Lei XUE Dong-xin SONG Xi-geng BI Xiao-tian |
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| Institution: | SHI Lei1,XUE Dong-xin2,SONG Xi-geng2,BI Xiao-tian2(1.Merchant Marine College,Shanghai Maritime University,Shanghai 201306,China,2.School of Energy , Power Engineering,Dalian University of Technology,Dalian 116024,China) |
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| Abstract: | The crankshaft deflection of main engine behaves as an important technical parameter in the construction of ship propulsion shafting alignment for the restriction on alignment results.Conversely,the crankshaft deflection is influenced by shafting alignment state.A new numerical simulation method is proposed to calculate and analyze crankshaft deflections in order to avoid the randomicity and occasionality of measurement method.Taken 76,000 DWT product oil tankers for example,the typical alignment parameters... |
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| Keywords: | ship power train and equipment shafting alignment crankshaft deflection numerical simulation |
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