湿式摩擦离合器摩擦副热特性分析

苏楠阳; 吴学深; 杨星光; 鲍和云

doi:10.13433/j.cnki.1003-8728.20220116

湿式摩擦离合器摩擦副热特性分析

doi: 10.13433/j.cnki.1003-8728.20220116

1.
中国航发湖南动力机械研究所直升机传动技术重点实验室，湖南株洲 412002
2.
陆装驻株洲地区航空军代室，湖南株洲　412002
3.
南京航空航天大学直升机传动技术重点实验室，南京　210016

基金项目: 国家自然科学基金项目（51975274）与国家科技重大专项（J2019-Ⅲ-0023-0067）

详细信息

作者简介:
苏楠阳（1989−），工程师，学士，研究方向为变速直升机传动动力学、热分析研究，duominuaa@163.com

通讯作者:
鲍和云，教授，硕士生导师，博士，baoheyun@nuaa.edu.cn

中图分类号: TG156
计量
- 文章访问数: 67
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- PDF下载量: 11
- 被引次数: 0
出版历程
- 收稿日期: 2021-09-24
- 刊出日期: 2023-09-30

Analysis of Thermal Characteristics of Friction Pair in Wet Friction Clutch

1.
Key Laboratory of Science and Technology on Helicopter Transmission , Hunan Power Machinery Research Insti-tute of Aviation Development of China, Zhuzhou 412002, Hu'nan, China
2.
Military Representative Office of Army Equipment Department in Zhuzhou, Zhuzhou 412002, Hu'nan, China
3.
National Key Laboratory of Science and Technology on Helicopter Transmission, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

摘要

摘要: 为了研究湿式多片离合器摩擦副的发热情况，选取其中一对摩擦副，建立了瞬态及稳态热分析有限元模型，将油槽类型转化为当量圆柱体并建立对流换热模型，计算了对流换热系数，并以此为边界条件，计算不同时间下摩擦片与对偶钢片沿径向和轴向的温度分布。同时，针对不同材料及槽型对摩擦副温度的影响进行分析，并采用SAE#2试验机，测试了不同材料及槽型的摩擦副温度，与理论分析进行了对比，温度变化趋势一致，误差较小。
- 摩擦离合器 /
- 摩擦副 /
- 瞬态 /
- 热特性
Abstract: In order to study the temperature characteristics of the friction pair in the wet clutch friction pair, the transient and steady-state thermal analysis finite element model for a pair of friction pairs is established, in which the oil groove type is transformed into an equivalent cylinder. The convective heat transfer model is established. The convective heat transfer coefficient is calculated. The radial and axial temperature distributions of the friction plate and the steel plate under different times are calculated. At the same time, the influence of the different materials and geometries on the temperature of the friction pair are analyzed, the SAE#2 machine was used to test the temperature of the friction pair of different materials and groove types, and the test results have little error.
- wet clutch /
- friction pair /
- transient /
- temperature characteristics

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图 1 瞬态热仿真模型

Figure 1. The transient thermal simulation model

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图 2 油槽内润滑油速度示意图

Figure 2. Schematic diagram of lubricating oil velocity in the oil groove

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图 3 圆环上热流密度按照时间步长加载

Figure 3. Time-stepped loading of heat flux density on the circular ring

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图 4 钢片温度

Figure 4. Temperature distribution in the steel plate

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图 5 摩擦片温度

Figure 5. Temperature distribution in the friction disk

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图 6 钢片内部温度传导

Figure 6. Internal temperature conduction in the steel plate

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图 7 摩擦片内部温度传导

Figure 7. Internal temperature conduction in the friction disk

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图 8 摩擦片槽型

Figure 8. Geometry of the friction disk groove

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图 9 接合过程中不同槽型摩擦副最高温度分布

Figure 9. Distribution of maximum temperatures in different groove types during the joining process

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图 10 接合过程中不同材料摩擦副最高温度分布

Figure 10. Distribution of maximum temperatures in different materials of the friction pair during the joining process

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图 11 SAE#2试验机

Figure 11. SAE #2 test machine

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图 12 热电偶布置

Figure 12. Arrangement of thermocouples

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图 13 摩擦片钢片安装图

Figure 13. Installation diagram for the friction disk and steel plate

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图 14 试验仿真数据对比

Figure 14. Comparison of experimental and simulation data

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表 1 摩擦副最高温试验与仿真数据对比

Table 1. Comparison of maximum temperatures between experimental and simulation data for the friction pair

序号	摩擦副槽型	材料	试验平均值/℃	试验最大值/℃	仿真值/℃	平均误差/%	幅值误差/%
1	双向平行槽	纸基	163.6	169.9	168.34	2.9	0.9
2	三向平行槽	纸基	163.4	166.9	165.19	1.1	1
3	华夫槽	纸基	153.3	161.3	148.08	3.4	8.2
4	螺旋槽	纸基	184.5	188.6	166.0	10.0	12.0
5	双圆弧槽	纸基	161.3	168.5	150.0	7.0	11.0
6	华夫槽	铜基	116.4	120.8	114.5	1.63	5.2
7	华夫槽	铁基	113.0	118.0	118.6	5.0	0.5

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