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为了评定本研究部件各部位强度的实际工作安全系数,除应力分布位置和应力分布特性以外,还必须知道其疲劳破坏强度。通常,利用材料标准方法试验,在拉伸或弯曲负荷时测定零件材料的机械和疲劳特性,把所得到的数据用来对零件进行计算,并根据计算结果确定零件的疲劳破坏强度。对于具有复杂形状并承受热负荷及动负荷的气缸套上部区域,根据参考资料提供的数据来决定其疲劳强度破坏值困
In order to assess the actual work safety factor of the strength of each part of the research component, in addition to the stress distribution location and stress distribution characteristics, the fatigue failure strength must also be known. In general, material mechanical tests are used to determine the mechanical and fatigue properties of the part material during tensile or bending loads. The data obtained are used to calculate the part and to determine the fatigue failure strength of the part based on the calculated results. For the upper region of cylinder liner with complex shape and withstand heat load and dynamic load, according to the data provided in reference materials to determine the fatigue strength of the damage value of the storm