本文从车架纵梁和横梁各个方面引起的应力分析车架断裂的原因。
A stress analysis was made on longitudinal and transverse, members of a truck frame, and the reasons of fracture of members in service were isolated.
车架：车架采用16 Mn车用钢板制成的焊接式纵梁和整体贯穿式横梁组焊而成的空间框架结构。
Frame: the frame is made into a space frame structure, including the welded longitudinal beam and the whole pulling-through crossbeam, of which are made of 16mn vehicle steel.
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