... weld pool image centroid 熔池图像质心 welded box girder 焊接箱形梁 welded hollow spherical joint 焊接空心球节点 ...
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随机载荷作用下的疲劳破坏是起重机焊接箱形梁的主要失效形式之一。
For most of the bridge cranes, the failure of the structures result from the fatigue damage in the welded box beam under the action of random fatigue loads.
根据已有的试验和研究成果，总结推荐了桥门式起重机焊接箱形梁的疲劳参数取值。
Based on test data and research achievement available in literature, the fatigue parameters of welded boxes of overhead and gantry cranes are recommended.
根据断裂力学及可靠性理论，提出了一种起重机焊接箱形梁存在裂纹缺陷的可靠度计算方法。
Based on fracture mechanics and theory of reliability, this paper offers the reliability calculation method for welded box beam having fracture.
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