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发表时间：2022-10-06

发表刊物：机械研究与应用

所属单位：运载工程与力学学部

期号：4

页面范围：1-5

ISSN号：1007-4414

摘要：The fatigue life of the remanufacturing impeller can be predicted by using the Monte Carlo ( M-C) method and the Probabilistic Fracture Mechanics ( PFM) with consideration of the uncertainty and the randomness of the parameters. Results indicate that the M-C method with PFM method is more reliable and safer for the design of the impeller with comparison to the traditional fracture mechanics method. The initial crack length, the fracture toughness, the coefficient of variation and aerody-namic forces can significantly affect the remaining fatigue life of the impeller. PFM is applied to the fatigue life prediction of the impeller and provides reference for design and maintenance of the impeller.

备注：新增回溯数据