The present application belongs to the technical field of engine
nozzle performance optimization, and specifically discloses a composite
nozzle design method based on online monitoring and
simulation verification, comprising the following steps: S1, establishing a preliminary design model; S2, identifying key
control parameters to obtain a sample level online monitoring scheme; S3, correcting the
simulation parameters of the preliminary design model obtained in S1; S4, carrying out
nozzle structure curing
simulation analysis and preliminary optimization design to obtain a nozzle preliminary optimization model; and S5, nozzle production, online data
collection analysis and simulation
verification, if the online monitoring
test data and the final product performance indicators both meet the design requirements, the optimization design model is completed. The composite nozzle design method based on online monitoring and simulation
verification is adopted, which does not increase the weight of the nozzle structure, and at the same time, multiple parameters in the nozzle curing process are monitored online, which provides support for mastering the temperature and strain change law in the nozzle curing process.