不同程度点蚀故障齿轮啮合刚度及振动响应研究

IF 0.9 Q4 ENGINEERING, MECHANICAL

International Journal of Rotating Machinery Pub Date : 2020-02-01 DOI:10.1155/2020/4176430

Jie Liu, Chengye Wang, Wenchao Wu

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引用次数: 9

摘要

为了研究点蚀对啮合刚度的影响，采用正态分布函数模拟点蚀齿轮的点蚀位置，并采用势能法分析点蚀对啮合刚度的影响。同时，采用有限元法对不同程度点蚀齿轮的啮合刚度进行了分析，验证了势能法计算结果的有效性。在啮合刚度的基础上，建立了齿轮系统的动力学模型，分析了不同程度点蚀齿轮系统的振动响应。结果表明:随着点蚀面积的增大，啮合刚度减小;驱动轮的啮合区域越靠近点蚀线，啮合刚度越小，导致振动响应加剧和周期性冲击;在时程图中，在啮合频率附近存在较小的杂散频率;在相图和庞加莱图中，轨迹和离散点聚集面积逐渐增大。

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Research on Meshing Stiffness and Vibration Response of Pitting Fault Gears with Different Degrees

In order to study the influence of pitting on meshing stiffness, the normal distribution function is used to simulate the pitting location of pitting gear, and the potential energy method is used to analyze the influence of pitting on meshing stiffness. At the same time, the meshing stiffness of pitting gears with different degrees is analyzed by finite element method, and the validity of the calculation results with potential energy method is verified. On the basis of meshing stiffness, the dynamic model of gear system is established, and the vibration response of pitting gear system with different degrees is analyzed. The results show that with the increase of pitting area, the meshing stiffness decreases; the closer the meshing area of the driving wheel is to the pitting line, the more the meshing stiffness decreases, resulting in the intensification of vibration response and periodic impact; and in the time history diagram, there is a small spurious frequencies near the meshing frequency; in the phase diagrams and the Poincare diagram, trajectory and discrete point aggregation area is gradually increased.

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来源期刊

International Journal of Rotating Machinery ENGINEERING, MECHANICAL-

CiteScore

2.40

自引率

0.00%

发文量

审稿时长

25 weeks

期刊介绍： This comprehensive journal provides the latest information on rotating machines and machine elements. This technology has become essential to many industrial processes, including gas-, steam-, water-, or wind-driven turbines at power generation systems, and in food processing, automobile and airplane engines, heating, refrigeration, air conditioning, and chemical or petroleum refining. In spite of the importance of rotating machinery and the huge financial resources involved in the industry, only a few publications distribute research and development information on the prime movers. This journal is the first source to combine the technology, as it applies to all of these specialties, previously scattered throughout literature.