By using the nonlinear cumulative fatigue damage model considering the influence of the fatigue limit and the cyclic stress amplitude, the remaining life formula of the.
获得了用电阻变化测量疲劳损伤的公式，应用计及疲劳极限和循环应力幅影响的非线性累积疲劳损伤模型，给出了金属材料疲劳损伤的剩余寿命预测公式。
A new calculating formula of the effective power of the reciprocating pump of multiphase flow is set up by the cyclic indicating figure of the pump.
根据往复泵的循环指示图建立了计算多相流往复泵有效功率的新方法。
When the failure criterion is decided, the limit accumulate energy dissipation can be fitted by a formula which includes the average stress, deviator stress ratio and cyclic axial stress.
当破坏标准选定时，界限累积耗损能量与平均应力、偏应力比及动应力间较好的回归关系。
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