A turbine guide vane life test spectrum compiling method based on a measured temperature spectrum
By preprocessing, clustering analysis, and damage calculation of the measured temperature spectrum of turbine guide vanes, a life test spectrum of turbine guide vanes is compiled, which solves the problem of inaccurate life prediction in the existing technology and achieves more accurate life assessment.
Patent Information
- Application Number
- CN202610089927.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-22
- Publication Date
- 2026-06-09
AI Technical Summary
In the existing technology, the life assessment method for turbine guide vanes fails to accurately reflect the complex thermal shock loads in actual operation, resulting in a large deviation between the life prediction results and the actual service life.
The method based on measured temperature spectra is adopted. By preprocessing the measured flight profile temperature spectra of multiple target aero-engines, removing small loads, performing cluster analysis, calculating single-point damage and cumulative damage at the cluster centers, and combining the Miner linear cumulative damage criterion, the equivalent load level and frequency are determined. Finally, the life test spectrum is compiled.
This improves the accuracy of the life test spectrum for turbine guide vanes, enabling it to reflect the actual load magnitude and true sequential effects, and providing a reliable basis for life determination and extension.
Smart Images
Figure CN122171215A_ABST