☆ 4.4 Editorial Material

Current and Future Trends in Tribological Research

LUBRICANTS (2023)

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Review Chemistry, Physical

A review of recent advances and applications of machine learning in tribology

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Summary: In the field of tribology, computational and experimental approaches have been considered to understand the interfacial characteristics and behaviors of materials. However, the data generated from these approaches remains underutilized due to lack of analysis methods or limitations of existing techniques. Machine learning can be used to address complex tribological problems and has shown potential in understanding critical factors.

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Article Engineering, Mechanical

Machine learning based surrogate modelling for the prediction of maximum contact temperature in EHL line contacts

A. Singh et al.

Summary: The present study aims to predict the maximum temperature in line contacts based on operational conditions. A TEHL simulation model is used to calculate the maximum temperature for various parameters. A neural networks approach is then employed to develop a surrogate model that can predict the maximum temperature based on operational parameters. The study shows the influence of different NN architectures and transfer functions on accuracy.

TRIBOLOGY INTERNATIONAL (2023)

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Nano-mechanical and nano-tribological characterisation of self-lubricating MoS2 nano-structured coating for space applications

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Summary: Tribological components play a crucial role in spacecraft, and solid-based lubricating materials offer a solution for space applications. This study investigates the nano-tribological and nano-mechanical behavior of a nano-structured MoS2 coating deposited on stainless steel. The results show that the coating has good friction performance and wear resistance, along with strong adhesion to the substrate.

TRIBOLOGY INTERNATIONAL (2023)

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Article Chemistry, Physical

Effect of substrate temperature on properties of AlN buffer layer grown by remote plasma ALD

Xiao-Ying Zhang et al.

Summary: Aluminum nitride (AlN) thin films with considerable properties were prepared using remote plasma atomic layer deposition (RP-ALD). The properties of AlN films with different growth temperatures were studied, and the characteristics of AlN/GaN and AlN/Al2O3 interfaces were analyzed on sapphire substrates. The experimental results showed that crystal AlN films with a hexagonal wurtzite structure were obtained at 250 degrees C. X-ray photoelectron spectroscopy confirmed the presence of Al-O, Al-O-N complexes, and Al-Al metallic aluminum bonds in the AlN films. High-resolution transmission electron microscopy revealed sharp interfaces of AlN/Al2O3 and AlN/GaN. Photoluminescence measurements confirmed that the AlN buffer layer enhances the quality of GaN grown on sapphire substrates. The high-quality AlN/GaN layers prepared by RP-ALD provide a promising pathway for high-quality GaN-based devices.

SURFACES AND INTERFACES (2023)

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Article Engineering, Mechanical

Predicting EHL film thickness parameters by machine learning approaches

Max MARIAN et al.

Summary: Non-dimensional similarity groups and analytically solvable proximity equations can estimate fluid film parameters in elastohydrodynamically lubricated contacts. In this study, machine learning and artificial intelligence approaches are shown to predict these parameters more efficiently and accurately than EHL simulations and proximity equations. The architecture of artificial neural networks and the activation functions have an impact on prediction accuracy. Artificial neural networks can predict local film thickness 25 times faster than FE-based EHL simulations. This advancement in prediction methods can enhance multibody system dynamics simulations.

FRICTION (2023)

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A Review of Research on Wind Turbine Bearings' Failure Analysis and Fault Diagnosis

Han Peng et al.

Summary: This paper focuses on wind turbine bearings and provides an overview and analysis of fault warnings, avoiding bearing failure, and prolonging bearing life. It examines the typical failure modes, characteristics, and diagnosis procedures of wind power bearings. It also explores the application of fault diagnosis methods such as spectrum analysis, wavelet analysis, and artificial intelligence. The directions and challenges of wind turbine bearing failure analysis and fault diagnosis research are discussed.

LUBRICANTS (2023)

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The Role of Machine Learning in Tribology: A Systematic Review

Uma Maheshwera Reddy Paturi et al.

Summary: The machine learning approach has significant applications in the field of tribology, accurately simulating and predicting tribological processes and providing new methods for the characterization and design of complex tribological systems. By integrating experimental data, interdisciplinary research can be conducted to enhance understanding of efficient resource utilization and conservation.

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Multiphysics performance assessment of hydrogen fuelled engines

Ramin Rahmani et al.

Summary: In the pursuit of decarbonisation, alternative clean fuels for propulsion systems, particularly hydrogen, are being sought. However, the potential impact of hydrogen combustion on engine lubricants and their tribology, as well as the combustion characteristics and energy losses, need to be carefully analyzed and understood. This paper presents a comprehensive analysis of internal combustion engines using hydrogen as fuel, shedding light on the implications for lubricant degradation and underlying physical principles.

INTERNATIONAL JOURNAL OF ENGINE RESEARCH (2023)

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Article Engineering, Mechanical

Point Contact Thermal Mixed Elastohydrodynamic Lubrication Under Short-Period Intermittent Motion

Mingyu Zhang et al.

Summary: To improve mechanical efficiency, the tribological performance of short-period intermittent motion is investigated. A mixed-EHL model under point contact simple sliding intermittent motion is established, considering the influences of rough surface. The transition from mixed-EHL to EHL is realized by changing the period of intermittent motion and setting the surface roughness. The thermal effect on simple sliding intermittent motion is significant and should not be ignored. The contact area enters the mixed-EHL state during stop and start-up, especially under rough surface contact. Shortening the period of intermittent motion helps alleviate the adverse effect of mixed-EHL.

JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME (2023)

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Article Engineering, Mechanical

A fully coupled tribo-dynamic model for piston-ring-liner system

Lining Gao et al.

Summary: This paper proposes a new method to achieve fully coupled modeling of the piston-ring-liner system from the perspective of multi-flexible-body dynamics. The study considers the contact characteristics of the ring groove and calculates the system boundary loads through the blow-by model. The effect of ring groove deformation on ring properties is revealed, and the complex tribo-dynamic behaviors of the system such as twisting and fluttering are characterized. After fully coupled modeling, piston deformation at the ring groove position can reach 65.80 μm, resulting in a 1.33 μm reduction in the minimum oil film thickness compared to the uncoupled model, and uneven ring wear is aggravated.

TRIBOLOGY INTERNATIONAL (2023)

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Article Engineering, Mechanical

A transfer learning based artificial neural network in geometrical design of textured surfaces for tribological applications

Seyed Jalaleddin Mousavirad et al.

Summary: This study investigates the potential of using transfer learning methods in training artificial neural networks for tribological applications. The researchers focus on analyzing the performance of artificially enhanced surfaces through surface texturing under hydrodynamic lubrication. They obtain a large performance dataset through analytical methods and use it to train the neural network. The results show that with a relatively low number of performance data points, the trained neural network performs well for the intended texture profiles.

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Multibody Dynamics of Cross Groove Constant Velocity Ball Joints for High Performance Racing Applications

Matthew Simpson et al.

Summary: Accurate prediction of contact loading and kinematics is crucial for improving joint design and preventing failure from fatigue. A detailed dynamic model is proposed for cross groove constant velocity joints in high performance racing applications. The model includes contact mechanics and friction models for all components, and is validated against existing computational models for cross groove designs. The study reveals high contact pressures and complex motion within a single cycle.

MECHANISM AND MACHINE THEORY (2023)

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Effect of surface texture positioning in grease lubricated contacts

Matthew Horsfall et al.

Summary: It is known that well-designed artificially enhanced surfaces can improve tribological performance. However, the effect of texture features not exposed to the contact area is not well understood. Three discs were tested in a ball on disc tribometer under representative contact conditions. Texture features directly beneath the contact increased friction, while those close to the contact reduced friction and wear.

TRIBOLOGY INTERNATIONAL (2023)

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Article Engineering, Mechanical

Electrotribodynamics of ball bearings in electrical machines

R. Turnbull et al.

Summary: The trend towards electrification presents challenges in bearing design, such as electrical discharge contact pathways leading to surface damage. This study introduces a comprehensive multiphysics model that considers bearing dynamics, mechanics of lubricated rolling element-to-races contacts, and electrical contact model for both DC and AC voltages. The model incorporates electrical resistance and capacitance effects in the bearing contacts. Key bearing vibration frequencies and voltage supply frequency are observed as influential factors in the electric current discharge. The developed model enables the prediction of rhythmic fluting patterns in failed bearing applications subject to electrical discharge.

TRIBOLOGY INTERNATIONAL (2023)

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Numerical study of piston group and crosshead guide system dynamics for a two-stroke marine engine

Elijah Musango Munyao et al.

Summary: In this article, a numerical model is developed to study the rigid body tribodynamics of a two-stroke marine engine. The model considers the coupling of the reciprocating piston group and the crosshead guide system, and solves for the displacements, velocities, and friction characteristics of the system. It is found that the secondary displacements, velocities, and friction characteristics increase with increase in engine speed and clearance on the crosshead guide system, resulting in increased impact on the engine structure.

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Shuai Cheng et al.

Summary: A new rough surface damping contact (RSDC) model is proposed and applied to the tribodynamics analysis of a variable stator vane (VSV) mechanism. The results demonstrate the significant impact of contact damping on stability, with clearance size affecting the distribution of damping and rigid forces.

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Ata Donmez et al.

Summary: The dynamic response of a gear pair to input and output torque or velocity fluctuations is examined in this study, with a reduced-order torsional model proposed for characterizing system response efficiently. The model's validity is confirmed through comparisons with experimental measurements, showcasing a wide array of nonlinear behavior and assessing the severity of impact on noise outcome.

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Review Engineering, Mechanical

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Yong Zheng et al.

Summary: The demand for high performance and customizable oral care products poses technical challenges in dentistry, with a lack of clear scientific understanding hindering the development of effective mitigation strategies. Existing literature on dental tribology is scattered, and conflicting evaluation methods for tooth damage and wear further complicate the issue.

TRIBOLOGY INTERNATIONAL (2022)

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Article Engineering, Mechanical

Tribological behavior of co-textured cylinder liner-piston ring during running-in

Chenwei Miao et al.

Summary: This study investigates the tribological behavior of cylinder liner-piston rings (CLPRs) during running-in, by applying different types of surface textures and characterizing the performance based on parameters such as friction coefficient, contact resistance, and wear topography. Experimental results demonstrate that textured surfaces improved friction performance during running-in compared to non-textured surfaces, while exhibiting differences in lubricant supply capacity and wear resistance. The co-texture shows a combination of advantages from dimples and groove textures, providing guidance for the design and manufacturing of CLPRs in marine diesel engines.

FRICTION (2022)

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Article Nanoscience & Nanotechnology

Role of Environment on the Shear-Induced Structural Evolution of MoS2 and Impact on Oxidation and Tribological Properties for Space Applications

Tomas F. Babuska et al.

Summary: This study investigates the effects of water and oxygen on the structural modifications of MoS2 coatings in space applications and their impact on friction due to aging. The results show that basally oriented surfaces have lower initial friction, while oxidation increases initial friction and prolongs the transition from high to low friction after aging. Patches formed in air show improved resistance to oxidation after aging.

ACS APPLIED MATERIALS & INTERFACES (2022)

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Review Engineering, Mechanical

Review of ultrasonic-based technology for oil film thickness measurement in lubrication

Pan Dou et al.

Summary: This paper comprehensively reviews the basic principles of ultrasonic-based oil film measurement, summarizes progress on calculation models and associated signal processing methods, exhibits in-lab demonstrations and in-situ applications, and discusses key technical issues and possible solutions.

TRIBOLOGY INTERNATIONAL (2022)

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Article Engineering, Mechanical

Film Thickness in Elastohydrodynamically Lubricated Slender Elliptic Contacts: Part II - Experimental Validation and Minimum Film Thickness

Marius Wolf et al.

Summary: In this paper, the new film thickness formula proposed in the first paper is validated through experimental measurements, and compared with the latest minimum film thickness formulas. Significant deviations are found in the analytical formulas when compared with both numerical and experimental results. Therefore, an alternative method for calculating minimum film thickness is proposed, which shows promising results for moderately slender elliptic EHL contacts.

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY (2022)

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A review of the bio-tribology of medical devices

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Summary: Various medical devices face significant tribological issues that affect their performance and service life. Understanding and improving the bio-tribological behavior is essential for enhancing the functionality of these devices and advancing their development for future applications.

FRICTION (2022)

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Article Materials Science, Coatings & Films

Tribological properties of flexible composite surfaces through direct ink writing for durable wearing devices

Zeyu Ma et al.

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Article Chemistry, Physical

Self-lubricating coating design strategy for titanium alloy by additive manufacturing

Binbin Wang et al.

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An efficient analytical approach to assess root cause of nonlinear electric vehicle gear whine

Hamza Mughal et al.

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NONLINEAR DYNAMICS (2022)

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Review Engineering, Mechanical

Electrical Bearing Damage, A Problem in the Nano- and Macro-Range

Volker Schneider et al.

Summary: This publication provides an overview of the latest research on electrical bearing currents and emphasizes the importance of considering the harmful current passage in machine elements as part of the entire drive system.

LUBRICANTS (2022)

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Article Engineering, Mechanical

Thermal Analysis Based on Dynamic Performance of Rocker Arm Full-Type Needle Bearings

Guangtao Zhang et al.

Summary: This study establishes equations for rocker arm full-type needle bearings based on dynamic analysis of rolling bearings, considering the traction coefficients of FVA-M reference lubricating oil. The equations are solved using the GSTIFF algorithm with variable steps. The influence of working conditions on friction power consumption and the lubricant's convective coefficients are investigated. The frictional power consumption is used as a boundary condition in the bearings' simulation model, and temperature fields are calculated using the finite element method. The study finds that the overall frictional power consumption increases with the increase in radial load or rotation speed. The presence or absence of a lubricating oil film affects the heat conduction of the bearing, resulting in temperature differences.

LUBRICANTS (2022)

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Article Engineering, Mechanical

Electrical Field Strength in Rough Infinite Line Contact Elastohydrodynamic Conjunctions

Samuel A. Morris et al.

Summary: This paper investigates the coupled electrical and mechanical behavior in rolling element bearings through a numerical study. The results suggest that the maximum field strength can be adequately predicted by considering the elastohydrodynamic film thickness and potential difference, and the width of the electrical field strength region is influenced by EHL parameters.

LUBRICANTS (2022)

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Review Biotechnology & Applied Microbiology

Recent Developments and Current Applications of Hydrogels in Osteoarthritis

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Study of the Cylinder Deactivation on Tribological Parameters and Emissions in an Internal Combustion Engine

Sofia Orjuela Abril et al.

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LUBRICANTS (2022)

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Modelling of Lubricated Electrical Contacts

Robert L. Jackson et al.

Summary: Electrical contacts are prone to degradation from fretting corrosion, especially during sliding and vibrations. The use of lubricants is a common approach to combat fretting corrosion and sliding wear, but it can lead to prolonged gaps between conducting metal surfaces. This study proposes a novel theoretical model to evaluate the intermittent breaks in contact caused by sliding, considering factors such as lubricant properties, surface roughness, contact radius, and contact force.

LUBRICANTS (2022)

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Article Thermodynamics

SI Engine Fueled with Gasoline, CNG and CNG-HHO Blend: Comparative Evaluation of Performance, Emission and Lubrication Oil Deterioration

Muhammad Usman et al.

Summary: The study compared the effects of gasoline, CNG, and CNG-HHO blend on the performance, emissions, and lubrication oil deterioration in SI engines. Results showed that the CNG-HHO blend performed better in terms of engine performance but had a more significant impact on lubrication oil.

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Tool texturing for micro-turning applications - an approach using mechanical micro indentation

Jiju V. Elias et al.

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MATERIALS AND MANUFACTURING PROCESSES (2021)

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Tribo-dynamic analysis and motion control of a rotating manipulator based on the load and temperature dependent friction model

Qi Yan et al.

Summary: This study investigates the impact of joint friction on manipulators and proposes a new control algorithm considering friction effects. The dynamics modeling utilizes an extended static friction model and introduces an adaptive fast nonsingular terminal sliding mode controller with advantages in continuous control, fast convergence, and robustness.

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY (2021)

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Article Materials Science, Multidisciplinary

Recent progresses and applications in laser-based surface texturing systems

Vijay Kumar et al.

Summary: Laser surface texturing is a well-known technique for enhancing the surface topography of engineering materials, and has been widely applied in areas such as lubrication, wear behavior, and surface contact.

MATERIALS TODAY COMMUNICATIONS (2021)

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Review Energy & Fuels

A Review of Hydrogen as a Fuel in Internal Combustion Engines

Behdad Shadidi et al.

Summary: The study investigates the impact of adding hydrogen as a supplementary fuel in internal combustion engines, finding that while hydrogen can reduce emissions, it also results in a decrease in certain performance metrics.

ENERGIES (2021)

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Review Energy & Fuels

A Comprehensive Overview of Hydrogen-Fueled Internal Combustion Engines: Achievements and Future Challenges

Zbigniew Stepien

Summary: This paper provides a comprehensive review and critical analysis of the latest research results on using hydrogen to power internal combustion engines, summarizing experiences from various international research centers. It discusses the advantages, disadvantages, challenges, and opportunities of using hydrogen as a fuel, as well as the exhaust gas scrubbing technology for hydrogen-powered engines. The paper also mentions the unresolved issues, such as the reliability challenges faced by fuel injection systems and the drawbacks of using hydrogen as a fuel.

ENERGIES (2021)

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Article Engineering, Mechanical

Energy loss and emissions of engine compression rings with cylinder deactivation

Robert Turnbull et al.

Summary: The study shows that cylinder deactivation technology can reduce unburnt fuel entering the ring-pack crevices, thus reducing emissions. However, it also leads to an increase in frictional and gas leakage power losses, although still lower than the potential gains in fuel usage. Optimizing the piston compression ring will further improve fuel efficiency and emissions.

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING (2021)

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Extreme environment tribological study of advanced bearing polymers for space applications

Kian Bashandeh et al.

Summary: The study evaluated the tribological performance of three polymeric-based coatings under extreme temperatures and constant contact pressure, with the ATSP-based coatings showing excellent performance.

TRIBOLOGY INTERNATIONAL (2021)

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Review Materials Science, Multidisciplinary

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Ishwer Shivakoti et al.

Summary: Laser surface texturing (LST) is an effective method for generating texture on work surface and has shown tremendous potential for biomedical applications, improving the efficacy of biomaterials significantly. It has extreme potential for surface modification of biomaterial and can be utilized for biomedical applications.

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Article Biochemistry & Molecular Biology

Ionic Liquids as Performance Ingredients in Space Lubricants

Erik Nyberg et al.

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Empirical formulae for the influence of real film thickness distribution on the capacitance of an EHL point contact and application to rolling bearings

Volker Schneider et al.

Summary: This study numerically investigated the impact of rolling speed, force, and material parameters on the electrical capacitance of elliptical contacts in elastohydrodynamic lubrication, deriving empirical equations and developing formulas for calculating total capacitance of rolling bearings. A comparison between calculated capacities and measured values was also conducted. Electrical bearing capacitance plays a crucial role in predicting harmful bearing currents.

TRIBOLOGY INTERNATIONAL (2021)

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Article Cell & Tissue Engineering

Articular Cartilage Friction, Strain, and Viability Under Physiological to Pathological Benchtop Sliding Conditions

Margot S. Farnham et al.

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CELLULAR AND MOLECULAR BIOENGINEERING (2021)

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Article Materials Science, Multidisciplinary

Bending of Soft Micropatterns in Elastohydrodynamic Lubrication Tribology

Y. Peng et al.

Summary: Soft tribology is crucial for materials used in robotics, haptics, and biomechanics. The study investigates the lubricated friction differences between PDMS elastomer and PEGDA/alginate double network hydrogel patterns, and explores the impact of height-to-width aspect ratio and bending angle on elastohydrodynamic friction. The results show that taller patterns with large bending angles lead to a decrease in lubricated friction, suggesting potential applications in engineering lubricated friction.

EXPERIMENTAL MECHANICS (2021)

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Article Engineering, Mechanical

The effect of electrical current on premature failures and microstructural degradation in bearing steel

Benjamin Gould et al.

Summary: The research aims to elucidate the effect of variable current on premature failures, showing that different types of lubricant base oils and additive packages have an impact on white etching crack failure time.

INTERNATIONAL JOURNAL OF FATIGUE (2021)

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Article Materials Science, Multidisciplinary

Optimization of Tribological Characteristics of a Combined Pattern Textured Surface Using Taguchi Design

Dawit Zenebe Segu et al.

Summary: Laser surface modification with combined textures of circular and sine wave shapes effectively reduces the coefficient of friction, with the pattern featuring a groove width of 100 microns exhibiting the lowest friction coefficient. Dimple density was identified as the most important parameter influencing the friction coefficient at a 95% confidence level.

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE (2021)

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Article Engineering, Multidisciplinary

Convolutional neural network based bearing fault diagnosis of rotating machine using thermal images

Anurag Choudhary et al.

Summary: This paper presents a noninvasive thermal image-based method for bearing fault diagnosis in rotating machines, comparing the performance of shallow and deep learning approaches using ANN and CNN. The CNN based on LeNet-5 structure outperforms ANN in fault identification, and the use of infrared thermography enables automatic detection of bearing faults for early warnings and reduced system shutdowns.

MEASUREMENT (2021)

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Article Chemistry, Physical

Enhancing mechanical and biomedical properties of protheses - Surface and material design

Raj Shah et al.

Summary: The long-term success of prosthetics hinges greatly on the biomechanical/medical properties of implanted materials. Special attention to modifying/treating prosthetic surfaces is crucial in enhancing cell proliferation, bio-tribological performance, tendon growth, and mobility, ultimately improving longevity and performance.

SURFACES AND INTERFACES (2021)

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Article Engineering, Mechanical

Influence of High Electrical Currents on WEC Formation in Rolling Bearings

Joerg Loos et al.

Summary: Premature bearing failures caused by white etching cracks (WECs) are attributed to additional loads on rolling contact, such as electrical current passing through the bearing. Tests have shown that high electrical currents play a critical role as WEC triggers, with the intensity of the current, electrical polarity, and load type affecting WEC formation, while the impact of lubricant is relatively minor. The failure hypothesis of energetic WEC fatigue has been extended to account for high electrical currents.

TRIBOLOGY TRANSACTIONS (2021)

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Article Computer Science, Artificial Intelligence

Fault size diagnosis of rolling element bearing using artificial neural network and dimension theory

Surajkumar G. Kumbhar et al.

Summary: This paper presents a method that integrates Dimensional Analysis and Artificial Neural Network for diagnosing the size of bearing faults. Vibration responses of damaged bearings are collected using Fast Fourier Techniques to evaluate model accuracy, with the method showing good accuracy in bearing fault diagnosis.

NEURAL COMPUTING & APPLICATIONS (2021)

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Article Engineering, Mechanical

Development of a floating liner test rig and lubrication model for the study of the piston compression ring friction force under fully flooded and starved lubrication

Vicente Macian et al.

Summary: This study introduces a novel test rig for in-depth study of internal combustion engines' contribution to engine efficiency through friction mechanical losses in the piston-cylinder liner assembly. The rig integrates a single-cylinder engine, a floating liner mechanism, piezoelectric force sensors, and a unique lateral support design, demonstrating reliable friction measurements and sensitivity to various operating conditions. Experimental comparisons suggest that lubrication of the compression ring is better estimated under fully flooded lubrication conditions, as opposed to starved lubrication conditions which lead to over-estimated friction force values at higher engine speeds.

TRIBOLOGY INTERNATIONAL (2021)

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Review Engineering, Mechanical

Early wear detection and its significance for condition monitoring

Ping Lu et al.

Summary: This paper proposes an approach to enhance machinery condition monitoring through micro-sensing of tribological phenomena occurring between contacting surfaces, which can distinguish between benign and harmful wear scenarios. The wear process is influenced by lubricant condition, tribo-pair condition and operating condition, and requires a comprehensive monitoring strategy and targeted sensing technologies. Through a critical review of tribo-sensing technologies, potential monitoring technologies for early wear detection and related benefits are identified.

TRIBOLOGY INTERNATIONAL (2021)

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Article Engineering, Mechanical

Effect of Coating and Low Viscosity Oils on Piston Ring Friction under Mixed Regime of Lubrication through Analytical Modelling

Anastasios Zavos

Summary: This study examines the impact of coatings on piston ring-liner contact, finding that CrN coating has a lower friction coefficient while TiN coating has a higher friction coefficient due to its rough surface topography.

LUBRICANTS (2021)

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Review Engineering, Mechanical

Current Trends and Applications of Machine Learning in Tribology-A Review

Max Marian et al.

Summary: Machine learning and artificial intelligence are being increasingly used in tribology to sort through patterns and identify trends. Research covers various fields in tribology, from composite materials to lubricants, utilizing diverse applications and algorithms. This review aims to introduce and discuss the current trends and applications of ML and AI in the field, providing inspiration and support for researchers and engineers.

LUBRICANTS (2021)

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Review Engineering, Mechanical

A Critical Review of Approaches to the Design of Floating-Liner Apparatus for Instantaneous Piston Assembly Friction Measurement

Abdelrahman M. Youssef et al.

Summary: This paper critically evaluates different approaches to measure instantaneous friction between the piston assembly and cylinder in internal combustion engines, focusing on the floating-liner method and the instantaneous mean effective pressure (IMEP) method. The significance of piston assembly frictional losses, development of instantaneous piston-friction measurements, main design challenges in the floating-liner approach, methods of cylinder sealing and force balancing, and design challenges associated with firing operation are discussed and recommendations for future work are provided.

LUBRICANTS (2021)

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Article Engineering, Mechanical

The Use of Artificial Intelligence in Tribology-A Perspective

Andreas Rosenkranz et al.

Summary: This article introduces the application of artificial intelligence and machine learning in the field of tribology, highlighting recent advances and successful case studies using artificial neural networks. These methods demonstrate accurate and efficient prediction of tribological characteristics, with future research directions emphasizing the extended use of artificial intelligence and machine learning concepts.

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JOURNAL OF PHYSICS D-APPLIED PHYSICS (2002)

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Article Physics, Applied

Physics of lubricated impact of a sphere on a plate in a narrow continuum to gaps of molecular dimensions

MF Al-Samieh et al.

JOURNAL OF PHYSICS D-APPLIED PHYSICS (2002)

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Article Multidisciplinary Sciences

Evidence for van der Waals adhesion in gecko setae

K Autumn et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2002)

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Article Engineering, Mechanical

Aligned and misaligned contacts of rollers to races in elastohydrodynamic finite line conjunctions

M Kushwaha et al.

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE (2002)

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Article Physics, Applied

Ultra-thin lubricating films under transient conditions

M Al-Samieh et al.

JOURNAL OF PHYSICS D-APPLIED PHYSICS (2001)

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Article Engineering, Mechanical

Piston ring-cylinder bore friction modeling in mixed lubrication regime: Part I - Analytical results

O Akalin et al.

JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME (2001)

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Article Engineering, Mechanical

Piston ring-cylinder bore friction modeling in mixed lubrication regime: Part II - Correlation with bench test data

O Akalin et al.

JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME (2001)

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Article Engineering, Biomedical

New joints for the Millennium: wear control in total replacement hip joints

D Dowson

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART H-JOURNAL OF ENGINEERING IN MEDICINE (2001)

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Article Multidisciplinary Sciences

Adhesive force of a single gecko foot-hair

K Autumn et al.

NATURE (2000)

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Article Engineering, Mechanical

Assessment of useful life of lubricants using artificial neural network

AN Sinha et al.

INDUSTRIAL LUBRICATION AND TRIBOLOGY (2000)

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