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曲轴作为发动机的主要受力部件,在实际使用过程中承受着弯曲载荷和扭曲载荷。如果这些载荷在曲轴某个脆弱环节造成应力集中,可能会导致曲轴断裂。曲轴的主要断裂形式有:弯曲循环载荷造成曲轴在轴颈圆角处断裂;扭曲循环载荷造成曲轴在轴颈面断裂;材质缺陷造成曲轴断裂。在实际应用中,曲轴的断裂并不经常发生,一旦发生,将会造成严重后果,与
Crankshaft as the main force of the engine components, in actual use to withstand the bending load and torsional load. If these loads cause stress concentration in a vulnerable part of the crankshaft, the crankshaft may break. The main forms of crankshaft fracture are: bending cycle load caused by crankshaft fracture in the journal fillet; twist cycle load caused by crankshaft fracture in the journal surface; material defects caused by crankshaft fracture. In practice, crankshaft rupture does not occur often, if it occurs, will have serious consequences, and