摘要
基于ANSYS Workbench仿真计算平台,笔者建立了柴油机曲轴的有限元分析模型,计算了柴油机曲轴在静止受压状态下的应力场分布,完成了有限元模型的校核。采用试验设计方法(Design Of Experimentsmethod,DOE),将曲轴壁厚、主轴颈长度、曲柄销长度、连杆轴颈过渡圆角半径及主轴颈过渡圆角半径作为输入参数,曲轴质量及最大应力作为输出参数,完成了柴油机曲轴的多目标优化。优化后曲轴质量和最大应力均有所降低,从而改善了曲轴的质量和应力特性。
Based on ANSYS Workbench simulation platform, FEA model of the crankshaft of a diesel engine was built. The stress field distribution of the crankshaft in static compression state was computed, and the FEA model was verified. Based on DOE （Design Of Experiments） method, multi-objective optimization design of the crankshaft was completed, considering wall thickness of the crankshaft, length of main journal, length of crank pin, fillet radius of connecting rod journal and fillet radius of main bearing journal as input parameters, and the mass and maximum stress of the crankshaft as output parameters. After optimization, both the mass and the maximum stress of the crankshaft decreased. Thus, the mass and the stresscharacteristics improved.
出处
《矿山机械》
北大核心
2013年第6期106-110,共5页
Mining & Processing Equipment
基金
国家"973"重大基础研究项目(613570303)
关键词
柴油机曲轴
有限元
DOE
曲轴质量
最大应力
多目标优化
crankshaft of diesel engine
finite element： DOE
crankshaft mass： maximum stress
multi-objective optimization
