Moving - coordinate reiterative method is used for non - linear finite analysis of BHA.

把动坐标迭代法应用于下部钻具组合(BHA)的 非线性 有限元分析.

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The principles for selecting a moving point and a moving coordinate are reviewed.

本文整理了文献中关于动点—动系选择的四条原则,论证了其中最基本两条的合理性.

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The influence of the choice of the moving point and moving coordinate on solution is analysed.

分析动系和动点的选择对求解的影响,得出计算加速度的前提和简化方法.

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