Results 41 to 50 of about 655 (212)

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

Multifunctional Catechol‐Functionalized Cellulose Hydrogels for the Minimally Invasive Treatment of Acute Optic Nerve Injuries

Advanced Healthcare Materials, EarlyView.
Catechol‐functionalized cellulose hydrogels are developed as injectable, bioadhesive platforms for retinal neuroprotection. The hydrogels exhibit tunable rheological and mechanical properties, strong tissue adhesion, and sustained antioxidative activity.
Kai‐Hsiang Chang, Yi‐Ke Lin, Wei‐Li Chen, Ta‐Ching Chen, Jiashing Yu   +4 more
wiley   +1 more source

Analysis on Filtering Reducer Turning Arm Bearing Based on Thermal Mixed Lubrication

工程科学与技术, 2018
The lubrication state of the working interface of the filtering reducer turning arm bearing is affected by load,contact geometry,rough surface thermal effect and other factors.It is difficult to figure out the lubrication condition of the working ...
Xiaopeng WANG, Wenyu PENG, Hongliang TIAN, Xinze ZHAO, Meiyun ZHAO   +4 more
doaj  

EEMD-TFMST-Based Vibration Feature Identification and Performance Analysis of Water-Lubricated Stern Bearings Under Long-Term Service Conditions

Lubricants
Under long-term service conditions, vibration signals of water-lubricated stern bearings exhibit strong nonlinearity, nonstationarity, and multicomponent coupling, which makes accurate feature extraction challenging.
Xinyi Liu, Qilin Liu, Gao Wan, Yong Jin, Wu Ouyang   +4 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

Oxygels: Tunable Phosphorescent Hydrogels for Cherenkov‐Excited Luminescence Imaging (CELI) of Oxygen

Advanced Healthcare Materials, EarlyView.
Biocompatible hydrogels with covalently embedded near‐infrared phosphorescent probes enable local tissue pO2 quantification by means of Cherenkov‐excited luminescence imaging (CELI), where optical excitation occurs within tissues upon irradiation with high‐energy electron beams.
Simin Belali, Marien Iliza Ochoa Mendoza, Matthew S. Reed, Danylo Mykhalchuk, Annemarie Lang, Joel D. Boerckel, Brian W. Pogue, Sergei A. Vinogradov   +7 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

Topology and Material Optimization in Ultra‐Soft Magneto‐Active Structures: Making Advantage of Residual Anisotropies

Advanced Materials, EarlyView.
Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia, Rogelio Ortigosa, Jesús Martínez‐Frutos, Daniel Garcia‐Gonzalez   +3 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