Accurately predicting the failure risk of aeroengine disks is a key part of engine safety design. The traditional probabilistic failure risk analysis framework has limitations in the selection of analysis time, risk characterization, and iteration criteria. These limitations restrict the applicability, efficiency, and accuracy of the traditional framework in analysing manoeuvring flights, especially for military aircraft. A new risk analysis framework was established to analyse the failure risk of a disk in manoeuvring flight. A centrifugal compressor disk was analysed during manoeuvring flight. The results showed that the failure risk considering the thermal–mechanical load of manoeuvring flight is approximately three times greater than the risk considering only the thermal–mechanical load at the most dangerous moments, which indicates the necessity of considering manoeuvring flight. This new analysis framework is verified to be superior to the traditional analysis framework in terms of convergence accuracy and efficiency. This work provides a reference for exploring probabilistic damage tolerance in complex environments, which is useful for aeroengine safety design.
Probabilistic Failure Risk Assessment of Aeroengine Disk Considering Manoeuvring Flight
2024
Article (Journal)
Electronic Resource
Unknown
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