基于模糊理论对液固两相流泵叶轮磨损可靠性的研究

Algorithm of Fuzzy Reliability of Liquid Solid Two Phase Flow Pump Wear

针对泵叶轮磨损的常规判据和可靠性分析方法的不足，应用模糊数学理论，提出了泵叶轮磨损失效判据的模糊可靠性计算方法，并采用泵叶轮磨损算例证明此方法是适用的．研究结果表明，模糊可靠度计算方法较常规方法更为精确，它不仅反映了叶轮磨损程度和磨损失效现象的随机性，也反映了叶轮磨损失效判定的模糊性，实质上是在某种合理的程度上放宽了叶轮磨损失效判定的限度，从而可以达到延长泵的使用寿命。

Fuzzy mathematics theory is used to analyze the wear failure and reliability of pump blade. Fuzzy reliability calculation shows the randomness of blade wear, and it also reflects the fuzziness of blade wear inactivation. High precision computation can be made for the purpose of increasing the pump service life and reducing cost.