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Qing Ye, Yongpeng Ou, Guo Xiang and Junjie Chen
Over the years, air lubrication technology has been widely applied to maritime vessels, demonstrating its significant energy-saving and emission-reducing effects. However, the application of this technology in inland waterway transportation faces unique ...
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Xuan Zhao, Guoqiang Gao, Minshun Wan and Juchuan Dai
An accurate formula for calculating the pressure loss in concrete pumping plays a significant guiding role in the design and service process of pump trucks. Based on the flow characteristics of concrete pumping, a straight pipe one-dimensional model for ...
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Zhen Xu, Lianjiang Xu, Junfeng Sun, Meihong Liu, Taohong Liao and Xiangping Hu
Flexible support cylindrical gas film seals (CGFSs) adapt well to rotor whirling and have a good gas lubrication effect during thermal deformation. However, when a CGFS operates under the ?three high? (high interface slip speed, high-pressure differentia...
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Tao He, Yingzhi Zhou, Yong Liu and Yang Xia
The cavitation phenomenon and shaft deformation have a significant impact on the tribological performance of the journal bearing. A mixed lubrication model is developed that takes into account surface roughness and asperity contact, as well as the effect...
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Yingna Liang, Cunyuan Wang, Wei Wang, Hao Xing, Zhepeng Zhang and Dianrong Gao
The slipper pair is the crucial friction pair of the seawater axial piston pump. Taking seawater as the working medium will inevitably affect the bearing performance of the slipper pair. In this paper, a seawater axial piston pump slipper pair model with...
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Robin M. Robrecht and Peter F. Pelz
Grooved liquid annular seals have a significant influence on the design of turbomachines. Corresponding lubrication film models need to account for the different friction behavior of the grooves compared to plain seals. However, there is a lack of reliab...
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Zhe Mei, Anfeng Xiao, Jiahao Mei, Jinqiu Hu and Peng Zhang
In order to study the variation law of shear frictional characteristics of the steel pipe jacking and sand interface under different working conditions, the shear stress?strain curve between five different particle sizes of sand and steel pipe jacking un...
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Le Jiang, Yaguo Lyu, Yanjun Li, Yewei Liu, Yankun Hou and Zhenxia Liu
To study the influence of orifice spacing on the oil?air two-phase flow and the oil capture efficiency of an oil scoop in an under-race lubrication system, an experimental platform for under-race lubrication was built, and a calculation model for the oil...
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Dapeng Zhang, Yunbo Li and Jiaye Gong
In this paper, the air lubrication method is applied to high-speed SWATH (small waterplane area twin hull) to reduce the resistance. The influence of air injection locations on drag reduction is investigated. The computed results are compared with experi...
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Dmitriy V. Nelyubov, Marat I. Fakhrutdinov, Alena A. Sarkisyan, Evgeniy A. Sharin, Mikhail A. Ershov, Ulyana A. Makhova, Alisa E. Makhmudova, Nikita A. Klimov, Marina Y. Rogova, Vsevolod D. Savelenko, Vladimir M. Kapustin, Marina M. Lobashova and Ekaterina O. Tikhomirova
Research was carried out on the possibility of involving oil refining wastes and petrochemical by-products in marine fuel oil. It was shown that the properties of the studied products (VAT distillation residue of butyl alcohols, heavy pyrolysis tar, desa...
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