Coupling Research on Lubrication and Gear Dynamics Under Different-carrier Ferrofluids

Ren Fenglan; Wei Kun; Jian Guangxiao; Wang Youqiang

doi:10.16578/j.issn.1004.2539.2022.12.007

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Coupling Research on Lubrication and Gear Dynamics Under Different-carrier Ferrofluids

Theory·Research | 更新时间：2023-01-06

- Coupling Research on Lubrication and Gear Dynamics Under Different-carrier Ferrofluids
- Journal of Mechanical Transmission Vol. 46, Issue 12, Pages: 45-52(2022)
- 作者机构：
  
  1.常德职业技术学院机电系，湖南常德 415000
  2.中南大学机电工程学院，湖南长沙 410083
  3.三峡大学机械与动力学院，湖北宜昌 443002
  4.青岛理工大学机械与汽车工程学院，山东青岛 266520
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2022.12.007
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任丰兰,魏坤,菅光霄等.不同基载液齿轮磁流体润滑与动力学耦合研究[J].机械传动,2022,46(12):45-52.

Ren Fenglan,Wei Kun,Jian Guangxiao,et al.Coupling Research on Lubrication and Gear Dynamics Under Different-carrier Ferrofluids[J].Journal of Mechanical Transmission,2022,46(12):45-52.
任丰兰,魏坤,菅光霄等.不同基载液齿轮磁流体润滑与动力学耦合研究[J].机械传动,2022,46(12):45-52. DOI： 10.16578/j.issn.1004.2539.2022.12.007.

Ren Fenglan,Wei Kun,Jian Guangxiao,et al.Coupling Research on Lubrication and Gear Dynamics Under Different-carrier Ferrofluids[J].Journal of Mechanical Transmission,2022,46(12):45-52. DOI： 10.16578/j.issn.1004.2539.2022.12.007.

摘要

为了探究不同基载液磁流体对齿轮润滑与动力学的耦合效应，建立齿轮动力学与磁流体润滑耦合模型及油膜刚度模型，基于4阶的Runge-Kutta法、多重网格法和多重网格积分法，分析了不同基载液磁流体对齿面成膜特性及动载荷分布的影响。研究结果表明，改变磁流体基载液，适当增大磁流体黏度，可以改善齿面的成膜特性；其主要体现为轮齿间油膜厚度和油膜刚度的增大以及动载荷下油膜压力和油膜厚度振幅的减小。磁流体的黏度增大时，齿轮系统的综合刚度增大，动态传递误差和齿轮副振动速度减小，动载荷的振幅减小，冲击载荷得到抑制，齿轮系统的动力学特性和NVH（Noise Vibration Harshness）性能得到提高。

Abstract

In order to explore the coupling effect of ferrofluids with different carriers on lubrication and gear dynamics, the dynamic model and the ferrofluid lubrication model of the gear system are established. Based on the fourth order Runge-Kutta method, the multi-grid method and multi-grid integration method, the influence of different-carrier ferrofluids on oil film and the distribution of dynamic loads are analyzed. The results show that the film forming characteristics of tooth surfaces can be improved by changing the magnetic fluid base carrier and increasing the magnetic fluid viscosity appropriately. It is mainly reflected in the increase of oil film thickness and stiffness between gear teeth and the decrease of oil film pressure and amplitude of oil film thickness under dynamic loads. When the viscosity of the magnetic fluid increases, the comprehensive stiffness of the gear system also increases. On the contrary, when the vibration speed of the gear pair and the amplitude of the dynamic loads decreased, the impact loads are eventually suppressed, and the dynamic characteristics and NVH（Noise Vibration Harshness） performance of the gear system are improved consequently.

关键词

磁流体润滑齿轮动力学模型综合刚度动载荷

Keywords

Ferrofluid lubricationGear dynamic modelComprehensive stiffnessDynamic load

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