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.
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。
3
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.