...Jianzhong Cui; Hu Li; Dong Zhang; Yawen Xu; Fangwei Xie Purpose The purpose of this study is to investigate the flexible dynamic characteristics about hydro-viscous drive providing meaningful insights into the credible speed-regulating behavior during the soft-start. Design/methodology/approach...

...Hongwei Cui; Zisheng Lian; Long Li; Qiliang Wang Purpose The hydro-viscous drive (HVD) has been widely used in fan transmission in vehicles, fans, and scraper conveyors for step-less speed regulating and soft starting. It is an efficient method to save energy and reduce consumption. This study...

...Fangwei Xie; Jie Zhu; Jianzhong Cui; Xudong Zheng; Xinjian Guo; Yun Wang; Ramesh K. Agarwal Purpose The purpose of this paper is to study the dynamic transmission of the oil film in soft start process of hydro-viscous drive (HVD) between the friction pairs with consideration of surface roughness...