Control valve flow-induced vibration fatigue life prediction method based on digital twinning

A method for predicting the flow-induced vibration fatigue life of a control valve based on digital twinning comprises the steps that firstly, vibration information of the control valve under the working condition is collected through multiple sensors, and feature extraction is conducted; secondly, establishing a digital twinborn simulation model for simulation analysis, further establishing a drift and diffusion model, generating deviation data of monitoring data and simulation data, extrapolating the deviation data to generate an extrapolated deviation data set, correcting and updating the digital twinborn simulation model, and finally, obtaining a digital twinborn model based on a Miner-Palmgren linear cumulative damage theory. Predicting the flow-induced vibration fatigue life of the control valve according to the extrapolation data; according to the fatigue life prediction method based on digital twinning, the problem that in the actual working process of the control valve, due to ...