Accurate modeling of the vibration signal model of planetary gearboxes is essential for the subsequent fault diagnosis. According to the existing improved phenomenological model based on the meshing vibration, this paper conducts further investigations on the vibration mechanism of the gearbox. The time delay phenomenon of faulty ring gear tooth participating in meshing is theoretically analyzed, and the assisted phases for experimental verification are proposed and deduced. Based on the improved model, the vibration signal under the fault condition is simulated and compared with the results of traditional methods. Subsequently, the paper proposes to divide and reconstruct this signal and use the maximum correlation kurtosis deconvolution (MCKD) to enhance its impact characteristics. The results show that the phase between the fault impact and its adjacent meshing impact is consistent with the proposed assisted phase. Finally, the correctness of the vibration mechanism and the improved phenomenological model are verified experimentally.

行星齿轮箱振动信号模型的准确建模对于随后的故障诊断至关重要。根据现有的基于啮合振动的改进现象学模型，本文对齿轮箱的振动机理进行了进一步的研究。从理论上分析了故障齿圈啮合的时延现象，提出并推导了辅助验证阶段。在改进模型的基础上，对故障条件下的振动信号进行了仿真，并与传统方法的结果进行了比较。随后，本文提出对信号进行分割和重构，并使用最大相关峰度反卷积（MCKD）增强其影响特性。结果表明，断层影响与其相邻啮合影响之间的阶段与所提出的辅助阶段是一致的。最后，通过实验验证了振动机理的正确性和改进的现象学模型。