伞绳和伞衣处理成非线性弹性构件。
The radial members and gores are regarded as non linear elastic materials.
考虑伞衣中线上的子午向应力，得到了一个双轴应力模型。
The meridional stress in the gore centerline is considered, and a biaxial stress model is got.
利用模型计算了主充气阶段伞衣形状变化、伞衣投影面积变化及伞绳张力。
The model was used to calculate the variations of the canopy shape, the variations of canopy projection area and the tension of the suspension line during the final inflation phase.
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