| 基于有限元分析和动力学仿真的曲轴疲劳寿命计算 |
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| 引用本文： | 王勇,杨洋.基于有限元分析和动力学仿真的曲轴疲劳寿命计算[J].船电技术,2009,29(6). |
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| 作者姓名： | 王勇 杨洋 |
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| 作者单位： | 1. 海军驻武汉438厂军代室,武汉,430064
2. 海军驻武汉第七一二研究所军代室,武汉,430064 |
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| 摘 要： | 基于某型十二缸内燃机曲轴的有限元模型,建立了包括曲轴、活塞组、连杆组及飞轮在内的三维实体动力学仿真模型,并考虑惯性力、气缸压力和相邻拐的影响.通过曲轴刚柔混合动力学仿真,计算了标准工况下曲轴的载荷历程曲线及最大应力,并利用全寿命方法(S-N法)得出了该曲轴的疲劳寿命.在此基础上,对内燃机负荷与曲轴疲劳寿命关系进行了分析,表明内燃机负荷对曲轴疲劳寿命有显著的影响.
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| 关 键 词： | 内燃机 曲轴 有限元 动态仿真 疲劳寿命 |
Crankshaft Fatigue Life Calculation Based on FEA and Dynamic Simulation |
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| Wang Yong,Yang Yang.Crankshaft Fatigue Life Calculation Based on FEA and Dynamic Simulation[J].Marine Electric & Electronic Technology,2009,29(6). |
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| Authors: | Wang Yong Yang Yang |
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| Institution: | Wang Yong1,Yang Yang2(1.Navy Representative Office of 438 Factory,Wuhan 430064,China,2.Navy Representative Office of 712 Institute,China) |
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| Abstract: | Based on finite element analysis model of a twelve-cylinder internal combustion engine,this paper builds up a 3-dimension solid dynamic simulation model which included crankshaft,piston-connecting rod and flywheel.Considering the mutual effect on the inertial force,the cylinder pressure and adjacent crankpin,the load spectrum and maximum stress of crankshaft at normal load cases are gained through dynamic simulation.The fatigue life of crankshaft is calculated using S-N method.The relationship between the l... |
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| Keywords: | IC Engine crankshaft finite element dynamic simulation fatigue life |
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