数字模型应用创建了重复的对角交叉杆件模型，形成折叠成三列的弯曲的树冠形状。
Digital modelling was used to create a repeating pattern of diagonally intersecting poles, forming the curving canopy shape that folds down into three columns.
对交叉杆组成存在的问题及疲劳裂纹进行了分析，并提出了提高其疲劳强度的措施。
The problems existing in the assembled crossed rods and the fatigue crack are analyzed, and the measures to improve the fatigue strength are given.
作为算例，应用该方法对配装转k 6型转向架的交叉杆组成进行了疲劳寿命评估。
As an example, the fatigue service life estimation is made on the cross-brace assembly of Zhuan K6 bogie with the method.
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