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通过对故障统计、材质及断口形貌分析、应力校核与应力实测,论证了车架纵梁断裂原因,并提出了补强措施。
Through the statistics of faults, the analysis of the material and the fracture surface, stress checking and stress measurement, the reason of the frame longitudinal beam fracture is demonstrated and the reinforcement measures are put forward.