RT Journal Article SR Electronic A1 Liao, Xiangping A1 Sun, Langxin A1 Kang, Shaopeng A1 Liu, Kailei A1 Zhu, Xinyang A1 Zhao, Ying T1 Analysis of the Influencing Factors on the Oil Film Uniformity of Hydro-viscous Drive Clutch JF Manufacturing Technology Journal YR 2024 VO 24 IS 6 SP 992 OP 1000 DO 10.21062/mft.2024.100 UL https://journalmt.com/artkey/mft-202406-0010.php AB Hydro-viscous drive (HVD) clutch is a type of power transmission device by using shear stress of oil film. Whether the oil film between friction pair are uniformly distributed is the key factor that affecting the perfor-mance of HVD clutch. However, it is hard to make sure that the uniformity of oil film between friction pair are the same, which can lead to uneven wear problem for the frictional plates of HVD clutch. In order to study the uniformity of oil film of HVD clutch, the distribution regularity of oil films between friction pair of HVD clutch is researched by establishing the mathematics model. and a new HVD clutch with double-piston structure is pro-posed, which can greatly improve the uniformity of oil film of HVD clutch.