Investigation on the influence of heat on the dynamic characteristics of a gear transmission system

被引：20
作者：
Luo, Biao [1 ,2 ]
Li, Wei [2 ]
机构：
[1] Univ South China, Sch Mech Engn, Hengyang 421001, Peoples R China
[2] Univ Sci & Technol Beijing, Sch Mech Engn, Beijing 100083, Peoples R China
来源：
ENGINEERING FAILURE ANALYSIS | 2020年 / 116卷 / 116期
基金：
中国国家自然科学基金;
关键词：
Gear transmission system; Heat; Time-varying meshing stiffness; Equivalent viscous damping; Dynamic characteristics; PLASTIC INCLINATION DEFORMATION; ROTOR SYSTEM; NONLINEAR VIBRATION; MESH STIFFNESS; TOOTH; RESPONSES; FEATURES; PARTICLE; SPEED; FIELD;
D O I：
10.1016/j.engfailanal.2020.104724
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In order to study the influence of heat on dynamic characteristics of gear transmission system, the meshing thermal stiffness of gear was proposed, and it was introduced into the system dynamics equation. Meanwhile, the equivalent viscous damping of the system was studied by using the Coulomb friction damping model. Thus, the thermal dynamics model of system was established. In this article, the thermal dynamics model of gear system was established and solved. The comparative analysis of the thermal dynamic response and elastic dynamic response of the system was also provided. The results show that the maximum peak value, vibration velocity, and equilibrium position of thermal dynamic response are all bigger than those of the elastic dynamic response. The maximum dynamic load is found at the alternating point of double teeth region to single tooth region, and the maximum thermal dynamic load and thermal dynamic load coefficient are smaller than those of the elastic system because of the increases of the equivalent viscous damping. Additionally, the theoretical model is verified by finite element method and experimental method, respectively.
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页数：17
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