Measurements and theoretical analysis of a helical gear meshing impact signal
Measurements and theoretical analysis of a helical gear meshing impact signal
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DOI：
10.1177/1464419319853435
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发表时间：
2019-06
期刊：
影响因子：
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通讯作者：
Shengyang Hu;Z. Fang;Chao Liu;Long Xiang
中科院分区：
文献类型：
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作者：
Shengyang Hu;Z. Fang;Chao Liu;Long Xiang
啮合冲击是影响齿轮振动和噪声的重要因素。因此，研究离线啮合冲击的特性对减小啮合冲击引起的振动具有重要的理论和现实意义。目前，以单副齿轮为研究对象，忽略了系统间复杂的耦合关系，无法验证已建立的啮合冲击数值解公式。通过希尔伯特解调和瞬时频率法，从实验得到的动态传动误差信号中提取啮合冲击信号，得到啮合冲击引起的最大变形。通过加载齿面接触分析和齿面接触分析得到了单齿的啮合刚度，并计算了啮合冲击力。建立了考虑重合度的啮合碰撞动力学模型，并与实验中得到的力进行了比较。实验测量啮合冲击信号的方法在相关文献中尚未见报道。该方法具有广泛、准确、方便的优点，不受系统复杂性的影响。同时，该方法可用于确定运行过程中有啮合冲击的齿轮齿数，为实时修形设计提供依据。因此，它具有重要的意义。
Meshing impact is an important factor that affects gear vibration and noise. Therefore, it is of great theoretical and practical significance to study the characteristics of offline meshing impact to reduce the vibration caused by meshing impact. Currently, a single-pair gear is the research goal, ignoring complex coupling relationships between systems, and the established numerical solution formula of the meshing impact cannot be verified. By using Hilbert demodulation and instantaneous frequency, this study obtained the meshing impact signal from the dynamic transmission error signal of the experiment and obtained the maximum deformation caused by the meshing impact. The meshing stiffness of a single tooth was obtained by loaded tooth contact analysis and tooth contact analysis, and the meshing impact force was calculated. The dynamic model of the meshing impact considering the contact ratio was established to compare with the obtained force in the experiment. The method of measuring the meshing impact signal from experiments has not been reported in relevant literature. The method has the advantages of being extensive, accurate and convenient, and it is not affected by the complexity of the system. At the same time, this method can be used to determine the gear teeth with meshing impact in the course of operation and provide a basis for real-time shape modification and design. Therefore, it is of great significance.