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Volume 07 No. 01
05 February 2019

Jianbin LUO

2019, 07(01): 1-1.   doi:10.1007/s40544-019-0262-x
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Shuaihang PAN, Zhinan ZHANG

2019, 07(01): 2-17.   doi:10.1007/s40544-018-0217-7
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Long-term observation of the triboelectric effect has not only proved the feasibility of many novel and useful tribo-devices (e.g., triboelectric nanogenerators), but also constantly motivated the exploration of its mysterious nature. In the pursuit of a comprehensive understanding of how the triboelectric process works, a more accurate description of the triboelectric effect and its related parameters and factors is urgently required. This review critically goes through the fundamental theor...

Guowei HUANG, Qiangliang YU, Zhengfeng MA, Meirong CAI, Feng ZHOU, Weimin LIU

2019, 07(01): 18-31.   doi:10.1007/s40544-017-0180-8
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To enhance the lubricating and extreme pressure (EP) performance of base oils, two types of oil-soluble ionic liquids (ILs) with similar anion albeit dissimilar cations were synthesized. The physical properties of the prepared ILs were measured. The anticorrosion properties of ILs were assessed by conducting corrosion tests on steel discs and copper strips, which revealed the remarkable anticorrosion properties of the ILs in comparison with those of the commercial additive zinc dialkyldithiop...

Zhenbing CAI, Zhiqiang CHEN, Yang SUN, Jianying JIN, Jinfang PENG, Minhao ZHU

2019, 07(01): 32-43.   doi:10.1007/s40544-017-0188-0
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In many industrial devices, impact-sliding wear is caused by a variety of complex vibrations between the contacted interfaces. Under actual conditions, impact and sliding motions do not occur in only one direction, and different complex impact-sliding motions exist on the tribology surfaces. In this study, an impact-sliding wear test rig is developed to investigate the wear effect of different complex motions. Using this rig, multi-type impact-sliding wear effects are realized and measured, s...

Xuwen ZHONG, Yanqiu XIA, Xin FENG

2019, 07(01): 44-58.   doi:10.1007/s40544-017-0190-6
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The plant cuticle is a complex mixture of omnipresent, commonly monofunctional, fatty acid derivatives and taxon-specific, generally bifunctional, specialty compounds. This study explored expanded applications for these substances. Four types of plant cuticles were distilled from leaves and the resulting lipid mixtures were analyzed using gas chromatography-mass spectrometry. These were then used as additives for a synthetic ester lubricant. A reciprocating friction and wear testing machine w...

Enrico CIULLI

2019, 07(01): 59-73.   doi:10.1007/s40544-017-0197-z
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This paper presents experimental rigs of the Research Centre for the Mechanics of Turbomachinery of the Department of Civil and Industrial Engineering of the University of Pisa. Most of them were designed and constructed to allow investigations of real machine components and to furnish more realistic results than basic tribological test rigs.

Tilting pad journal bearings, as well as gears and complete gearboxes for advanced industrial applications, can be tested using the rigs described...

J. BENAD, K. NAKANO, V. L. POPOV, M. POPOV

2019, 07(01): 74-85.   doi:10.1007/s40544-018-0202-1
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The present paper is devoted to a theoretical analysis of sliding friction under the influence of in-plane oscillations perpendicular to the sliding direction. Contrary to previous studies of this mode of active control of friction, we consider the influence of the stiffness of the tribological contact in detail and show that the contact stiffness plays a central role for small oscillation amplitudes. In the present paper we consider the case of a displacement-controlled system, where the con...

Scott BAIR

2019, 07(01): 86-91.   doi:10.1007/s40544-018-0210-1
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In the classical study of elastohydrodynamic lubrication (EHL) which does not employ real, measurable viscosity in analysis, the possibility of a glass transition has not been considered in many years. Indeed, the two rheological assumptions of classical EHL, the Newtonian inlet and the equivalence of a traction curve to a flow curve, would not have persisted so long had the pressure dependence of the viscosity been accurately stated. With the recent appearance of viscosity obtained from visc...