Abstract
A fault diagnosis method that combines multi-source signal fusion with generative adversarial network (GAN) is proposed to establish a fault diagnosis model. Principal component analysis (PCA) is initially utilized to fuse vibration signals from multiple sensors to obtain more reliable, precise, and comprehensive fault signal features. Subsequently, the Markov transition field (MTF) is used to convert one-dimensional vibration signals into two-dimensional image outputs, preserving the time-dependency of the signals. Finally, these two-dimensional image data serve as input for the GAN model, which consists of a generator and a discriminator. The adversarial interaction between these components facilitates the recognition of fault patterns. The performance of the fault diagnosis model is validated using a public bearing fault dataset, achieving a 95.5% accuracy rate with minimal training samples, demonstrating the feasibility of the model.
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