A Multi-condition Strength Analysis Method for Two-Dimensional Vectoring Nozzles of Aero-engines

Abstract

This application relates to a multi-condition strength analysis method for a two-dimensional vector nozzle of an aero-engine, comprising: Step 1, determining the analysis conditions of the two-dimensional vector nozzle; Step 2, determining the analysis object through force transmission path analysis; Step 3, establishing an overall load transmission calculation model for the two-dimensional vector nozzle, including a structural dynamics simulation model and a fluid aerodynamic simulation model; Step 4, performing unidirectional fluid-structure interaction analysis on the two-dimensional vector nozzle under each analysis condition, and applying aerodynamic loads to the two-dimensional vector nozzle; Step 5, conducting strength analysis based on the overall load transmission calculation model of the two-dimensional vector nozzle, obtaining the overall model strength stress and deformation, and then extracting the loads of each component of the two-dimensional vector nozzle; Step 6, determining the load correction coefficients for each component of the two-dimensional vector nozzle based on test data, and correcting the loads of each component of the two-dimensional vector nozzle; Step 7, performing strength analysis using the corrected loads of each component of the two-dimensional vector nozzle.

Images