Fan blade damage positioning method based on single acoustic emission sensor

The invention discloses a fan blade damage intelligent positioning method based on a single acoustic emission sensor, and the method comprises the steps: creating an artificial acoustic emission source replacing a damage source on a fan blade structure, implementing the artificial acoustic emission source, and collecting acoustic emission signal data through the single acoustic emission sensor; preprocessing the acoustic emission signal data, converting the acoustic emission signal data into graph structure data, forming a graph data set, and dividing the graph data set into a training set, a verification set and a test set; building a damage source positioning deep learning model based on a graph convolutional neural network; training and verifying the damage source positioning deep learning model by using data in a training set and a verification set to obtain an optimal damage source positioning deep learning model; and inputting the test set graph structure data into the optimal damage source positioning