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基于MSC的变矩器膨胀变形分析

, PP. 144-149

Keywords: 机械工程,钣金型液力变矩器,试验研究,膨胀变形,内流场,轴向力

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Abstract:

?为了准确快速地预测钣金型液力变矩器在工作负载下壳体的膨胀变形、提高液力变矩器性能、减少由于整体轴向刚体位移导致与周围零件的干涉,借助三坐标测量仪及UG软件平台建立并简化了变矩器内流道模型和变矩器壳体模型;利用仿真软件Gambit,Fluent对内流道模型进行分析,得出了壳体所受油压面力和轴向力;最后,借助软件MSC.Patran和MSC.Nastran对液力变矩器壳体的膨胀变形进行模拟仿真预测,并通过试验对仿真的结果进行验证。试验结果表明:试验与仿真分析的结果基本吻合;液力变矩器的轴向位移与油压大小呈线性关系;最大应力出现在壳体循环圆曲率发生突变最大的部分;最大应变出现在泵轮出口面和涡轮进口面所对应的壳体上。

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