Results 51 to 60 of about 2,418,912 (297)

Friction Characteristics of Microgrooved Bearings under Mixed Lubrication

Tribology Online, 2008
In this paper, the friction characteristics of microgrooved bearings are examined experimentally and theoretically. The microgrooved bearings have an advantage of suppressing the oil film temperature rises under the heavy loaded conditions.
Katsuhiro Ashihara, Hiromu Hashimoto
doaj   +1 more source

Energy-Based Modelling of Adhesive Wear in the Mixed Lubrication Regime

Lubricants, 2020
Adhesive wear in dry contacts is often described using the Archard or Fleischer model. Both provide equations for the determination of a wear volume, taking the load, the sliding path and a set of material parameters into account.
J. T. Terwey, M. Fourati, F. Pape, G. Poll   +3 more
semanticscholar   +1 more source

Surprising Water Slipping Performance on Highly Hydrophilic PEG‐Derived Monolayer‐Covered Surfaces: Preparation, Mechanism, and Application

Advanced Functional Materials, EarlyView.
Highly hydrophilic surfaces (water contact angle, ≈17.7°) exhibiting surprising water slipping performance (sliding angle, ≈7.3°) are successfully prepared via simple chemisorption of polyethylene glycol (PEG) organosilane and subsequent alkali‐treatment.
Hyeonjin Kim, Kouki Akaike, Jerred Wassgren, Hiroshi Kakiuchida, Masahisa Okada, Atsushi Hozumi   +5 more
wiley   +1 more source

Research on Oil Cavity Lubrication Characteristics of Sliding Bearings for Wind Turbines With Strong Sudden Change and Heavy Load

Energy Science & Engineering
To analyze the oil cavity lubrication characteristics of wind turbines sliding bearings with discontinuous flow in mixed lubrication wear caused by strong sudden changes and heavy loads, this paper aims to improve a method to analyze the pressure and ...
Wengui Mao, Xuemei Wu, Congcong Liao, Xiwen Hu, Houjing Li, Zhikai Deng   +5 more
doaj   +1 more source

Study on Grease Lubrication and Electric Erosion Characteristics in AC Electric Fields

Lubricants
Protecting motor bearings from electric erosion is crucial as electric vehicles evolve. To better understand how lubrication interacts with electric discharge within motor bearings during varying speeds of vehicle operation, an optical ball-on-disk ...
Ziying Li, Feng Guo, Zhaogang Jing, Bing Li, Li Zhang, Xiaobo Wang   +5 more
doaj   +1 more source

Evaluation of Wear Phenomena of Journal Bearings by Close to Component Testing and Application of a Numerical Wear Assessment

Lubricants, 2018
Hydrodynamic journal bearings are subjected to progressively rough loading conditions leading to an increased share of operation in mixed and boundary lubrication.
Philipp Bergmann, Florian Grün, Florian Summer, István Gódor   +3 more
doaj   +1 more source

Sustainable Electrochemical Synthesis of High‐Quality MXenes: Mechanistic Insights, Applications, Challenges, and Technological Prospects

Advanced Functional Materials, EarlyView.
Electrochemical etching provides an eco‐friendly alternative to hazardous HF methods for MXene production. This approach facilitates the selective isolation of the A‐layer from MAX phases with tunable surface terminations. Controlling voltage, electrolytes, temperature, and duration enables the optimal structural integrity. Nevertheless, existing scale
Jagdeep Singh, Madhusudhana M Devadiga, Santosh K. Tiwari, AS Dhaliwal, Gurpreet Singh Selopal   +4 more
wiley   +1 more source

Friction coefficient in mixed lubrication: A simplified analytical approach for highly loaded non-conformal contacts

Advances in Mechanical Engineering, 2017
This article presents an analytical model for predicting friction in mixed lubrication regime. The calculations consider load shared between roughness asperities and the lubricant film, as well as the appearance of thermal effects in the contact and the ...
Javier Echávarri Otero, Eduardo de la Guerra Ochoa, Enrique Chacón Tanarro, Benito del Río López   +3 more
doaj   +1 more source

Natural Biomaterials for Osteochondral Repair: From Source to Strategy

Advanced Healthcare Materials, EarlyView.
Biological origin‐guided overview of natural biomaterials and therapeutic strategies for osteochondral tissue engineering. The circular diagram categorizes representative materials and strategies into plant/algae‐derived, microbial‐derived, animal‐derived, and human‐derived sources, centered on an osteochondral defect repair model.
Hengyu Liu, Hanyang Zhang, Wenbo Yang, Hao Chen, Jincheng Wang, Fei Chang   +5 more
wiley   +1 more source

Study of Lubrication Performance and Churning Loss under Mixed Lubrication Mode in Gearbox

Lubricants
In order to clarify the effect of mixed lubrication methods on the oil flow and power loss of the gearbox, this study adopts a high-precision moving particle semi-implicit (MPS) method to investigate the lubrication of the gearbox under the joint ...
Lina Wang, Yi Liu, Kailin Zhang, Yuan Yao, Shuai Shao, Kuangzhou He   +5 more
doaj   +1 more source