Huang Wenjian

TL;DR: A new particle swarm optimization particle filter algorithm (NPSO-PF) is proposed, which is called particle cluster optimization particles filter algorithm with mutation operator, and it is proposed that the particle filter can be tuned according to the number of particles in a swarm.

TL;DR: In this paper, a finite element method (FEM) for phased array technology in ultrasonic time of flight diffraction (TOFD) for defect detection of two-dimensional (2-D) geometric materials was researched.

TL;DR: A new method about the multi-fault condition monitoring of slurry pump based on principal component analysis (PCA) and sequential probability ratio test (SPRT) is proposed.

TL;DR: In this article, a method and a system for detecting and positioning micro-cracks based on an ultrasonic phased array was proposed, which comprises the following steps of loading a lowfrequency excitation signal onto a defect specimen by a low-frequency ultrasonic probe, loading a high-frequency exexcitation signal on a defect sample by an UAV transducer, and enabling the low frequency excitation signals and the high frequency excitations to mutually act and generate an echo signal; collecting the echo signal, and filtering the echo signals; performing time reversalsimulation treatment

TL;DR: A novel method for diagnosing gear crack in gearbox based on principal component analysis (PCA) and sequential probability ratio test (SPRT) and the results indicate that this method is feasible and practical to classify different conditions of the gearbox.