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学者姓名：潘伶
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ARTICLE HIGHLIGHTS • The results of friction and wear tests show that when ZIF-8 is used as a lubricant additive for lithium-based grease, the best antifriction and antiwear effects can be achieved when the mass fraction is 2.0 wt. %. • Experimental and simulation results show that ZIF-8 with a mass fraction of 2.0 wt. % reduces the friction coefficient μ of lithium-based grease by about 17% and reduces wear by about 40%. • Molecular dynamics simulations show that ZIF-8 mainly reduces friction and resists wear by increasing the load-bearing capacity of the grease and the role of ball bearings. Additionally, as the load increases, ZIF-8 particles undergo a certain amount of deformation, gradually weakening the action of the ball bearings. © 2024 Author(s).
Keyword ：
Ball bearings Ball bearings Friction Friction Lubricating greases Lubricating greases Tribology Tribology Wear of materials Wear of materials
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| GB/T 7714 | Pan, Ling , Li, Zhi , Wu, Yunli et al. Study on the sliding tribological behavior of ZIF-8 under lubricating grease conditions [J]. | Nanotechnology and Precision Engineering , 2025 , 8 (1) . |
| MLA | Pan, Ling et al. "Study on the sliding tribological behavior of ZIF-8 under lubricating grease conditions" . | Nanotechnology and Precision Engineering 8 . 1 (2025) . |
| APA | Pan, Ling , Li, Zhi , Wu, Yunli , Zheng, Kaikui , Han, Yuqing . Study on the sliding tribological behavior of ZIF-8 under lubricating grease conditions . | Nanotechnology and Precision Engineering , 2025 , 8 (1) . |
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Superhydrophilic-underwater superoleophobic materials have received extensive attention in recent years due to their excellent performance in oil-water separation. However, they are still challenged by practical limitations. One of the main issues is the modification of traditional metal-based surfaces. These surfaces are typically modified through roughening and chemical treatment, but they still face significant challenges. Here, we report a metal rubber(MR) filtration material with exceptional superhydrophilic-underwater superoleophobic properties, fabricated through a synchronous process combining two-dimensional(2D) iron oxide sheets and zerodimensional(0D) silica nanospheres. This composite structure enhances surface wettability by integrating the dimensional effects of 2D and 0D components. This superwettable material, termed P-MRFS, incorporates a composite structure that enhances surface wettability by integrating the size effects of both 2D and 0D components. The P-MRFS material achieved a peak separation flux over 2500 L & sdot;m-2 & sdot;h-1 and up to 99.88% purity across various oil in water emulsions, including hexane, petroleum ether, dimethylbenzene, dichloroethane, and toluene, with a stable efficiency of 99.7% after 30 separation cycles. P-MRFS demonstrated durability under demanding conditions, maintaining over 99.5% separation efficiency after 48 hours in acidic, alkaline, and saline solutions and following 400 cm of abrasion under a 200 g load. Importantly, the study employed computational fluid dynamics(CFD) simulations to analyze the micro-scale mechanisms of emulsion separation, enabling realtime observation of droplet dynamics and revealing interactions within the multi-fiber structure that enhance separation efficiency. Overall, the P-MRFS material showed outstanding stability in corrosion and abrasion resistance, sustaining high emulsion separation performance even in complex environments. These findings suggest the material's high potential for future applications in oil-water separation, environmental protection, including crude oil recovery, and other industrial uses, underscoring its significant practical utility.
Keyword ：
CFD simulation CFD simulation Emulsion separation Emulsion separation Microstructural dimension control Microstructural dimension control oleophobic oleophobic Super hydrophilic Super hydrophilic Surface composite dimension structure Surface composite dimension structure underwater super underwater super
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| GB/T 7714 | Pi, Peng , Ren, Zhiying , Pan, Ling et al. Composite dimensional structure superhydrophilic-underwater superoleophobic material for efficient separation of oil-in-water emulsions [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2025 , 362 . |
| MLA | Pi, Peng et al. "Composite dimensional structure superhydrophilic-underwater superoleophobic material for efficient separation of oil-in-water emulsions" . | SEPARATION AND PURIFICATION TECHNOLOGY 362 (2025) . |
| APA | Pi, Peng , Ren, Zhiying , Pan, Ling , Lin, Youxi , Yang, Yu , Li, Yuedan . Composite dimensional structure superhydrophilic-underwater superoleophobic material for efficient separation of oil-in-water emulsions . | SEPARATION AND PURIFICATION TECHNOLOGY , 2025 , 362 . |
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目的 研究稠化剂组分中二元酸和硼酸对润滑脂在摩擦副表面润滑性能的影响.方法 分别建立具有正弦曲面凸峰的粗糙面边界润滑系统模型,以及光滑壁面的反应力场边界润滑系统模型,通过分子动力学模拟方法研究 12-羟基硬脂酸/壬二酸润滑脂体系(A润滑脂)、12-羟基硬脂酸/十二烷二酸润滑脂体系(B润滑脂)和12-羟基硬脂酸/壬二酸/硼酸润滑脂体系(C润滑脂)的承载能力、抗剪切能力、摩擦性能,并对C润滑脂进行成键和摩擦化学反应膜分析.结合润滑脂的微摩擦磨损试验,揭示二元酸链长和硼酸对润滑脂摩擦性能的影响.结果 在加压阶段,随着压力的增加,润滑脂密度增大,且分层现象越明显.当压力 Pz=50 MPa时,组分中含硼酸的C润滑脂在各处的密度均较小,表现出最佳的承载能力.在剪切过程中,C润滑脂始终将 2 个粗糙峰隔开,油膜不破裂,承载能力最高;含长链二元酸的B润滑脂和含硼酸的C润滑脂的最大应力相较于A润滑脂,分别降低了 27.1%、57.1%.同时,C润滑脂的摩擦因数相对稳定,在 0.075～0.095范围内波动,其均值为 0.090,相较于 B 润滑脂和 A 润滑脂,分别降低了 16.7%、22.2%,具有优良的力学性能.摩擦磨损结果表明,在稠化剂组分中添加硼酸后,润滑脂的理化性能得到显著提升,摩擦因数及均值分别为 0.085～0.095 和 0.091,模拟结果与试验结果一致.结论 相较于稠化剂中含短链二元酸的润滑脂,含长链二元酸的润滑脂表现出较好的抗剪切能力和摩擦性能.在稠化剂中添加硼酸后,稠化剂的结构得到强化,润滑脂表现出更为优异的抗磨减摩性能.这是因为在硼酸的作用下,润滑脂中的锂皂和硼酸基团不仅形成了配位键,而且能在固体壁面上形成摩擦反应膜,显著提高了润滑脂的物理化学性能.
Keyword ：
分子动力学 分子动力学 摩擦反应膜 摩擦反应膜 摩擦性能 摩擦性能 润滑脂 润滑脂 稠化剂组分 稠化剂组分
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| GB/T 7714 | 潘伶 , 吴允李 , 连金良 et al. 稠化剂组分对润滑脂摩擦性能的影响 [J]. | 表面技术 , 2025 , 54 (5) : 83-92 . |
| MLA | 潘伶 et al. "稠化剂组分对润滑脂摩擦性能的影响" . | 表面技术 54 . 5 (2025) : 83-92 . |
| APA | 潘伶 , 吴允李 , 连金良 , 郑开魁 , 郭锦阳 . 稠化剂组分对润滑脂摩擦性能的影响 . | 表面技术 , 2025 , 54 (5) , 83-92 . |
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Acorrugated sandwich plate was prepared by metal rubber, and the macro and micro mechanical properties of the structure were studied by experiment and finite element respectively. In order to accelerate the calculation rate, the finite element equivalent model was established, and the influence of different material parameters on the mechanical properties of the structure was studied and verified by experiment. The results show that there are two stages under load:platform stage and compact stage. Compared with traditional corrugated sandwich board, the platform stage is longer and the energy absorption effect is improved. Combined with the test and the finite element, it is found that the reason for these two stages is that the ultimate load can cause the buckling deformation of the sandwich layer under the loading condition, thus reducing the internal voidage of the structure, and the structure is further loaded to the dense stage. The validity of the research results is verified by the comparison of the two, which provides guidance for the future design and application of metal rubber corrugated sandwich plate. © 2024 Cailiao Daobaoshe/ Materials Review. All rights reserved.
Keyword ：
Finite element method Finite element method Plate metal Plate metal Plates (structural components) Plates (structural components) Rubber Rubber Sandwich structures Sandwich structures Structural design Structural design
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| GB/T 7714 | Pan, Ling , Xu, Bingbing , Ren, Zhiying et al. Static Mechanical Properties of Lightweight Corrugated Sandwich Structure Based on Metal Rubber [J]. | Materials Reports , 2024 , 38 (4) . |
| MLA | Pan, Ling et al. "Static Mechanical Properties of Lightweight Corrugated Sandwich Structure Based on Metal Rubber" . | Materials Reports 38 . 4 (2024) . |
| APA | Pan, Ling , Xu, Bingbing , Ren, Zhiying , Shi, Linwei , Chen, Yipeng . Static Mechanical Properties of Lightweight Corrugated Sandwich Structure Based on Metal Rubber . | Materials Reports , 2024 , 38 (4) . |
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The new type of nutation reducer with double circular-arc bevel gears as the core is characterized by advantages such as high load-bearing capacity, large transmission ratio, and simple structure. The existing research focuses on the machining methods of gears and the analysis of tooth contact. This article first time establishes an elastohydrodynamic mixed lubrication model for nutation double circular-arc bevel gear. The model's accuracy is verified by comparing it with existing test results. On this basis, combined with the finite element method and tooth contact analysis, the meshing characteristics, tooth contact characteristics, and lubrication characteristics of the double circular-arc bevel gear tooth surface are analyzed. The results show that the entrainment velocity at the contact point of the tooth surface during transmission is much higher than the sliding velocity. Consequently, the meshing motion is close to pure rolling. In constant-speed transmission, the oil film thickness at the engaging-in and exit points near the edge of the tooth surface is smaller than that at other meshing points on the tooth surface. This phenomenon can easily lead to mixed lubrication and lubrication failure, as well as tooth surface wear. During deceleration, i.e., when the speed drops to 50 r/min, the oil film thickness approaches zero, indicating that the gear has entered a mixed lubrication state. The proposed model can be used for lubrication analysis and improving transmission accuracy of nutation double circular-arc bevel gears.
Keyword ：
double circular-arc double circular-arc elastohydrodynamic lubrication elastohydrodynamic lubrication mixed lubrication mixed lubrication nutation-driven nutation-driven Spiral bevel gear Spiral bevel gear
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| GB/T 7714 | Pan, Ling , Yin, Zhiqiang , Lin, Bin et al. Non-Newtonian thermal elastohydrodynamic mixed lubrication in elliptical contact for nutation-driven double circular-arc spiral bevel gear pair [J]. | PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY , 2024 , 238 (9) : 1121-1137 . |
| MLA | Pan, Ling et al. "Non-Newtonian thermal elastohydrodynamic mixed lubrication in elliptical contact for nutation-driven double circular-arc spiral bevel gear pair" . | PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY 238 . 9 (2024) : 1121-1137 . |
| APA | Pan, Ling , Yin, Zhiqiang , Lin, Bin , Zeng, Yi , Zhang, Jun . Non-Newtonian thermal elastohydrodynamic mixed lubrication in elliptical contact for nutation-driven double circular-arc spiral bevel gear pair . | PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY , 2024 , 238 (9) , 1121-1137 . |
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Adding nanoparticles can significantly improve the tribological properties of lubricants.However,there is a lack of understanding regarding the influence of nanoparticle shape on lubrication performance.In this work,the influ-ence of diamond nanoparticles(DNPs)on the tribological properties of lubricants is investigated through friction experiments.Additionally,the friction characteristics of lubricants regarding ellipsoidal particle shape are investi-gated using molecular dynamics(MD)simulations.The results show that DNPs can drastically lower the lubricant's friction coefficient μ from 0.21 to 0.117.The shearing process reveals that as the aspect ratio(a)of the nanoparticles approaches 1.0,the friction performance improves,and wear on the wall diminishes.At the same time,the shape of the nanoparticles tends to be spherical.When 0.85 ≤ α ≤1.0,rolling is ellipsoidal particles'main form of motion,and the friction force changes according to a periodic sinusoidal law.In the range of 0.80 ≤ α＜0.85,ellipsoidal particles primarily exhibit sliding as the dominant movement mode.As a decreases within this range,the friction force progressively increases.The friction coefficient μ calculated through MD simulation is 0.128,which is consistent with the experimental data.
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| GB/T 7714 | Ling Pan , Zhi Li , Yunhui Chen et al. Effect of Ellipsoidal Particle Shape on Tribological Properties of Lubricants Containing Nanoparticles [J]. | 中国机械工程学报 , 2024 , 37 (4) : 231-242 . |
| MLA | Ling Pan et al. "Effect of Ellipsoidal Particle Shape on Tribological Properties of Lubricants Containing Nanoparticles" . | 中国机械工程学报 37 . 4 (2024) : 231-242 . |
| APA | Ling Pan , Zhi Li , Yunhui Chen , Guobin Lin . Effect of Ellipsoidal Particle Shape on Tribological Properties of Lubricants Containing Nanoparticles . | 中国机械工程学报 , 2024 , 37 (4) , 231-242 . |
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A thermal elastohydrodynamic lubrication model is combined with a wear model under mixed lubrication to investigate the lubrication performance and wear characteristics of double-circular-arc spiral bevel gears for nutation drive. Moreover, the effects of operating conditions on the characteristic parameters of the film are analysed under the mixed lubrication point-contact conditions. Furthermore, the characteristics of gears in terms of friction coefficient and wear depth are discussed. According to the results, the performance of lubrication and wear during the mutual meshing of the convex tooth surface of the external bevel gear and the concave tooth surface of the inner bevel gear is better than that during the mutual meshing of the other pair of tooth surfaces. The minimum film thickness of the whole meshing process occurs near the inner of the bevel gear due to the joint action of the load and the end edge effect. Moreover, an increase in torque at a certain rotational speed is favourable to the lubrication performance of the meshing process. The wear depth in the double-circular-arc spiral bevel gears' meshing process is heavily influenced by the roughness of the tooth surface.
Keyword ：
EHL EHL lubrication performance lubrication performance mixed lubrication mixed lubrication nutation double-circular-arc spiral bevel gears nutation double-circular-arc spiral bevel gears wear mechanism wear mechanism
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| GB/T 7714 | Lin, Bin , Pan, Ling , Tang, Jiating et al. Lubrication Performance and Wear Mechanism of Double-Circular-Arc Spiral Bevel Gears for Nutation Drive in Mixed Lubrication [J]. | LUBRICATION SCIENCE , 2024 . |
| MLA | Lin, Bin et al. "Lubrication Performance and Wear Mechanism of Double-Circular-Arc Spiral Bevel Gears for Nutation Drive in Mixed Lubrication" . | LUBRICATION SCIENCE (2024) . |
| APA | Lin, Bin , Pan, Ling , Tang, Jiating , Tan, Shiyang , Zhang, Jun . Lubrication Performance and Wear Mechanism of Double-Circular-Arc Spiral Bevel Gears for Nutation Drive in Mixed Lubrication . | LUBRICATION SCIENCE , 2024 . |
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The dynamic behaviour of droplets impacting solid surfaces exists in nature, production, and life. In this paper, for the first time, the molecular dynamics method is used to simulate capturing the behaviour of nanodroplets containing SiO2 on solid surfaces. The dynamic behaviour of nanodroplets impacting solid surfaces is analysed when the initial falling velocity v(0) of the droplet is 0.3-1.5 nm.ps(-1) and for different particle size d(s), mass fraction fs of SiO2, and solid surfaces with various wettability. The contact angles of droplets containing SiO2 nanoparticles on the solid surface were measured, and the simulated values closely matched experimental results. The results show that the droplets on the smooth solid surface are completely captured after impact when v(0) = 0.3-1.1 nm.ps(-1). When v(0) = 1.2-1.5 nm.ps(-1), the droplet is fragmented, and the fragmentation ratio ns increases with the mass fraction phi(s). The droplet fragments when v(0) = 1.4-1.5 nm.ps(-1) on the rough solid surface when the ratio of the side length of the square column to the droplet diameter is 0.07, while the pure water droplet directly bounces and does not fragment. There is a linear relationship between the minimum height of the centre of mass and the mass fraction in the process of droplet impact. The maximum droplet's spreading factor value in the spreading stage beta(max) increases with mass fraction phi(s) and v(0). When the spreading factor of droplets increases to beta(c) approximate to 3.02, the droplet fragments. The droplet spreading presents the Wenzel state on the rough solid surface. Moreover, the pinning effect affects the droplet falling into the square column gap surface, hindering droplet spreading. Therefore, the rough surface has better catching ability for the droplet than the smooth surface, while the speed range that can be caught is larger. These results provide a theoretical basis for related engineering applications.
Keyword ：
Impact Impact Molecular dynamics simulation Molecular dynamics simulation Nanodroplets Nanodroplets SiO2 SiO2
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| GB/T 7714 | Pan, Ling , Lin, Bin , Yin, Zhiqiang et al. Study on trapping behaviour of SiO2-containing droplets on the solid surface [J]. | JOURNAL OF MOLECULAR LIQUIDS , 2024 , 402 . |
| MLA | Pan, Ling et al. "Study on trapping behaviour of SiO2-containing droplets on the solid surface" . | JOURNAL OF MOLECULAR LIQUIDS 402 (2024) . |
| APA | Pan, Ling , Lin, Bin , Yin, Zhiqiang , Zhang, Hao , Xie, Xuqing . Study on trapping behaviour of SiO2-containing droplets on the solid surface . | JOURNAL OF MOLECULAR LIQUIDS , 2024 , 402 . |
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The tribological properties of polyaromatic organics ( x P y E) as lubricating grease additives are studied by simulations and experiments. Molecular Dynamics (MD) simulations are used to simulate the mechanical properties of four kinds of polyaromatic organics (2P1E, 3P2E, 4P3E, and 5P4E) with different aromatic ring numbers and a mass fraction under 300 MPa and 5 m/s relative shear velocity of the two solid walls. The friction force, positive pressure, stress, and adsorption energy are calculated quantitatively. Meantime, the friction coefficient of lubricating grease and the wear morphology of the sample are measured by Multifunctional Friction and Wear Testing Machine. The results show that the organic additives adsorbed on the wall form a protective film during the shearing process, improving the bearing capacity and reducing friction and wear. Among them, the 3P2E organic additive has an appropriate number of aromatic rings. Its single molecular adsorption energy and unit adsorption energy are higher than other organic additives and can uniformly lay on the wall to form a stable, protective film. This demonstrates the best friction performance and improves the load -bearing capacity of the lubricating film, reducing maximum wall stress by 53.4 %.
Keyword ：
Boundary lubrication Boundary lubrication Lubricant additive Lubricant additive Molecular dynamics Molecular dynamics Polyaromatic organics Polyaromatic organics
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| GB/T 7714 | Pan, Ling , Lian, Jinliang , Wu, Yunli et al. Tribological properties of polyaromatic organics as lubricating grease [J]. | WEAR , 2024 , 548-549 . |
| MLA | Pan, Ling et al. "Tribological properties of polyaromatic organics as lubricating grease" . | WEAR 548-549 (2024) . |
| APA | Pan, Ling , Lian, Jinliang , Wu, Yunli , Guo, Jinyang . Tribological properties of polyaromatic organics as lubricating grease . | WEAR , 2024 , 548-549 . |
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The ultrasonic vibration-assisted polishing (UVAP) method, a recently developed advanced processing technology, is widely used in the processing of brittle materials. This study uses molecular dynamics (MD) simulations to investigate the polishing behavior of diamond grits on SiC workpieces during the UVAP process. The frequency (fz), amplitude (Az), and dimensions of the vibration are varied to investigate various aspects of the material removal process. In the low-frequency region, the UVAP processing method exacerbates taper slips and dislocations in the workpiece. In the high-frequency region, fz and Az can improve the MRR by more than 32% and reach 2-4 times higher than that of traditional scratching, respectively. The surface morphology obtained using MD simulation is consistent with the experimental results. In the ultrasonic elliptical vibration assisted polishing (UEVAP) method, fy not only causes a periodic and stable increase in temperature, which helps to transform atoms into an amorphous structure, but it also increases material removal rate (MRR) while decreasing friction factor and surface roughness. Appropriate increase of fz reduces forces and improves stress distribution. Az significantly increases MRR but results in a rough surface. In comparison to the UVAP process, the UEVAP method further improves MRR and produces smoother machined surfaces.Graphical AbstractThis study uses molecular dynamics (MD) simulations to investigate the polishing behavior of diamond grits on SiC workpieces during the UVAP process. The frequency (fz), amplitude (Az), and dimensions of the vibration are varied to investigate various aspects of the material removal process.
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| GB/T 7714 | Chen, Yunhui , Pan, Ling , Yin, Zhiqiang et al. Effects of ultrasonic vibration-assisted machining methods on the surface polishing of silicon carbide [J]. | JOURNAL OF MATERIALS SCIENCE , 2024 , 59 (18) : 7700-7715 . |
| MLA | Chen, Yunhui et al. "Effects of ultrasonic vibration-assisted machining methods on the surface polishing of silicon carbide" . | JOURNAL OF MATERIALS SCIENCE 59 . 18 (2024) : 7700-7715 . |
| APA | Chen, Yunhui , Pan, Ling , Yin, Zhiqiang , Wu, Yunli . Effects of ultrasonic vibration-assisted machining methods on the surface polishing of silicon carbide . | JOURNAL OF MATERIALS SCIENCE , 2024 , 59 (18) , 7700-7715 . |
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