Abstract
Bionic non-smooth surface is widely applied in metal and ceramics materials. In order to introduce this technology to high pressure seawater pump, the influence of bionic non-smooth surface on the engineering plastics used in pump should be investigated. The comparative tests are carried out with a ring-on-disc configuration under 800, 1000, 1200 and 1400 r/min in order to research the influence of the bionic non-smooth surface on glass fiber-epoxy resin composite(GF/EPR) under natural seawater lubrication. The disc surfaces are textured with five kinds of pits, which are semi-spherical, conical, cone-cylinder combined, cylindrical pits and through holes, respectively. A smooth surface is tested as reference. The results show that the lubrication performance of dimpled GF/EPR sample is much better than that of the smooth sample under all rotational speeds. The semi-spherical pits surface has more obvious friction reduction than the others, which shows that the least reduction is approximately 43.29% of smooth surface under 1200 r/min. However, the wear level is only marginally influenced by dimples. The surface morphology investigations disclose severe modifications caused by abrasive wear primarily. The results are helpful to vary friction properties of GF/EPR by non-smooth surface, or provide references to the design of non-smooth surfaces under certain condition.
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Supported by National Natural Science Foundation of China(Grant No. 51375421), and Key Project of Science and Technology Research of Hebei Province, China (ZD20131027)
WU Shaofeng, born in 1987, is currently a PhD candidate at School of Mechanical Engineering, Yanshan University, China. His research interests include lubrication mechanism and friction and wear of the high pressure seawater axial piston pump.
GAO Dianrong, born in 1962, is currently a professor at School of Mechanical Engineering, Yanshan University, China. He received his bachelor PhD degree from Yanshan University, China, in 2001. His research interests include CFD, PIV and new types of fluid components and devices.
LIANG Yingna, born in 1982, is currently a PhD candidate at School of Mechanical Engineering, Yanshan University, China. She received her bachelor degree in 2004, master degree in 2008 from Yanshan University, China. Her research interests include lubrication mechanism and friction and wear of the high pressure seawater axial piston pump.
CHEN Bo, born in 1990, is currently a PhD candidate at School of Mechanical Engineering, Yanshan University, China. His research interests include lubrication mechanism and friction and wear of the high pressure seawater axial piston pump.
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Wu, S., Gao, D., Liang, Y. et al. Experimental study on influence of dimples on lubrication performance of glass fiber-epoxy resin composite under natural seawater lubrication. Chin. J. Mech. Eng. 30, 110–117 (2017). https://doi.org/10.3901/CJME.2016.0620.075
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DOI: https://doi.org/10.3901/CJME.2016.0620.075