In addition, the stress concentration due to the imprecisely controlled machining and the sudden change of the stiffness in the structure, and the alternating load also contributed to the multi-source biaxial bending fatigue fracture of the fixed-pivot shaft.
此外,轴肩过渡圆弧加工质量欠佳和结构刚性突变,产生较大的应力集中,在交变弯曲载荷作用下,导致摇臂轴多源双向弯曲疲劳断裂。
The life of bending fretting fatigue was significantly influenced by the alternating stresses. The higher stress level was, the lower fatigue life occurred. The S-N curves of bending fretting fatigue appeared shapes of C type.
对于弯曲微动疲劳,交变应力对寿命的影响十分显著,应力水平越高,微动疲劳寿命越低,弯曲微动疲劳的S-N曲线呈C曲线型。
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