Results 61 to 70 of about 22,870 (230)

Hydrodynamic modelling of hydrostatic magnesium extrusion [PDF]

open access: yes, 2006
Wilson’s hydrodynamic model of the hydrostatic extrusion process is extended to meet the geometry found on residual billets. The transition from inlet\ud to work zone of the process is not considered sharp as in the model of Wilson but as a rounded edge,
Moodij, E.   +2 more
core   +2 more sources

Running-in wear modeling of honed surface for combustion engine cylinder liners [PDF]

open access: yes, 2013
The texture change during running-in alters the performance and efficiency of a tribo-mechanical system. During mass production of cylinder liners, a final finishing stage known as ‘‘plateau honing’’ is commonly added to reduce the running-in wear ...
DEMIRCI, Ibrahim   +3 more
core   +6 more sources

Application of the Optimization Methods to the Search of Marine Propulsion Shafting Global Equilibrium in Running Condition

open access: yesPolish Maritime Research, 2019
Full-film hydrodynamic lubrication of marine propulsion shafting journal bearings in running condition is discussed. Considerable computational difficulties in non-linear determining the quasi-static equilibrium of the shafting are highlighted.
Ursolov Aleksandr   +2 more
doaj   +1 more source

Effect of surface texturing on hydrodynamic lubrication at various temperatures

open access: yesAIP Advances, 2020
The formation of hydrodynamic lubrication is analyzed based on an experimental study of the hydrodynamic lubrication characteristics between two parallel surfaces with different types of surface texturing.
Huichao Gao, Xinyuan Chen
doaj   +1 more source

A Mixed Lubrication Deterministic Model of an Elastic Support Water-Lubricated Tilting Pad Thrust Bearing

open access: yesLubricants, 2023
In order to study the effect of surface roughness on lubrication performance of an elastic support water-lubricated tilting pad thrust bearing, a mixed lubrication (ML) deterministic model is hereby presented based on a unified Reynolds equation model ...
Xingxin Liang   +5 more
doaj   +1 more source

UTact: Underwater Vision‐Based Tactile Sensor with Geometry Reconstruction and Contact Force Estimation

open access: yesAdvanced Robotics Research, EarlyView.
Embedded flexible sensing technologies advance underwater soft robotics, yet most systems still suffer from hysteresis and limited perceptiveness. Instead, vision‐based tactile sensors provide reliable and rapid feedback essential for complex underwater tasks.
Qiyi Zhang   +5 more
wiley   +1 more source

GPU-accelerated simulation of colloidal suspensions with direct hydrodynamic interactions

open access: yes, 2012
Solvent-mediated hydrodynamic interactions between colloidal particles can significantly alter their dynamics. We discuss the implementation of Stokesian dynamics in leading approximation for streaming processors as provided by the compute unified device
Höfling, Felix, Kopp, Michael
core   +1 more source

Short-time diffusion in concentrated bidisperse hard-sphere suspensions [PDF]

open access: yes, 2014
Diffusion in bidisperse Brownian hard-sphere suspensions is studied by Stokesian Dynamics (SD) computer simulations and a semi-analytical theoretical scheme for colloidal short-time dynamics, based on Beenakker and Mazur's method [Physica 120A, 388 (1983)
Brady, John F., Heinen, Marco, Wang, Mu
core   +3 more sources

Performance decay of stern bearing based on lubrication numerical model and state parameters

open access: yesZhongguo Jianchuan Yanjiu, 2022
ObjectiveThis paper puts forward a method for monitoring and evaluating the lubrication performance of a marine stern tube bearing which combines a lubrication performance decay model and support vector machine (SVM) algorithm.
Tao ZHANG   +3 more
doaj   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

open access: yesAdvanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska   +2 more
wiley   +1 more source

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