论文标题:发动机CAE关键技术研究 The Researches on Watering Performance of the Opener of Regulated Deficit Irrigation Seeder 论文作者 乔峰丽 论文导师 任建平,论文学位 硕士,论文专业 机械制造及其自动化 论文单位 华北工学院,点击次数 103,论文页数 60页File Size3460k 2003-01-01论文网 http://www.lw23.com/lunwen_34879437/ 曲轴,有限元法,强度分析,优化设计 Crankshaft,FEM,Strength analysis,Optimistical design 本文用有限元法计算分析了发动机曲轴的弯曲应力。采用1/4曲拐有限元模型对不同边界条件进行了研究,计算了安全系数。最后探讨了曲轴结构参数的优化设计,提出了改进方案。 In this paper, the bend stress of engine crankshaft was analyzed by the finite element method(FEM).An one-Fouth crankthrow FE model is used to analyze it taking different boundary conditions into account. Safety factors was calculated based on the solution of the FE analysis. At last, the optimistical design of the parameters of the crankshaft was studies and improved schemes are put forward.
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