The method is used in analyzing 75-ton open wagon body and its joints.
此种方法是应用于对75吨敞车车体及其节点区的分析。
The results show that the key position which mainly affects the strength and the rigidity of the wagon body is in the middle position of the upper-side beam instead of the low frame.
结果发现，对整车强度和刚度有重大影响的关键部位并不在车辆底架，而在上侧梁中段。
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