Study of Fault Identification of Clearance in Cam Mechanism

The clearance between the main roller and cylinder cam has an important impact on operational status of bolt. In order to achieve recoil mechanism, a bolt model was built studied. leading dynamic group were analyzed. Positive stress friction force change quickly high-speed group, influencing multiple aspects. When suddenly rotates or reverses in several short intervals, assembling massive curve slot are wear factors theoretical analysis test experiments. pure rolling criterion cylindrical mechanism automaton, is derived this paper. Moreover, new fault diagnosis method developed, based Variational Box Dimension Kernel Fuzzy Mean Clustering Algorithm (VK) algorithm, which combines variational mode decomposition fractal box-counting dimension (VMD-FBCD) fuzzy clustering algorithms with kernelized Mahalanobis distance (KMD-FC). With simulation validation from 2810 samples, using VK algorithm found have higher accuracy rate slightly lower fallacy be faster than other diagnostic methods similar studies. results terms mechanism’s multi-body identification also significance as reference for solving problems.