Analysis and Revision of Torque Formula for Hydro-viscous Clutch

被引：5

作者：

Liao, Xiangping ^{[1
,2
]}

Yang, Shuai ^{[1
]}

Hu, Dong ^{[1
]}

Gong, Guofang ^{[3
]}

机构：

[1] Hunan Univ Humanities Sci & Technol, Coll Mech Engn, Loudi 417000, Peoples R China

[2] Cent South Univ, State Key Lab High Performance Complex Mfg, Changsha 410083, Peoples R China

[3] Zhejiang Univ, State Key Lab Fluid Power Transmiss & Control, Hangzhou 310027, Peoples R China

来源：

ENERGIES | 2021年 / 14卷 / 23期

关键词：

different oil film thickness; hydro-viscous clutch; hydro-viscous drive; multi-friction plates; torque formula; MODEL; BEHAVIOR; GROOVE; FLOW;

D O I：

10.3390/en14237884

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Hydro-viscous clutch is a speed-regulating device for heavy fans and water pumps. It has important engineering significance in the fields of soft-start for rotating machinery. More and more attention has been paid to its torque and control characteristics. This paper is focused on the torque formula for hydro-viscous clutch (HVC), assuming that multi-friction plates distribute ununiformly with different oil film thickness. A mathematical model of friction plates was constructed, then the distribution formula of the oil film thickness was obtained. A new expression was presented using a modified factor. Parameters such as pressure, viscous torque, and oil film thickness were obtained. The results show that each clearance of friction plates is not the same and the distribution of oil film thickness is influenced by pressing force, groove depth, angular ratio of groove/non-groove, and static friction force. To verify the proposed expression, relevant experiments were carried out on an HVC with multi-friction plates, and the experimental results indicate that the new expression is more accurate compared to the original one.

引用

页数：14

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