Results 31 to 40 of about 905,211 (126)

Fiber‐Format Flexible Linear Electrostatic Motors

open access: yesAdvanced Materials, EarlyView.
A flexible coaxial fibre‐format electrostatic motor enables backdrivable and reversible linear actuation with high force density and functionality under bending, offering a scalable actuation platform for soft and wearable robotics. ABSTRACT Linear motion is fundamental to robotics, yet existing solutions are either rigid electromagnetic motors or ...
Sylvain Schaller, Herbert Shea
wiley   +1 more source

用齿轮油润滑实现钢蜗杆副传动的试验研究

open access: yesJixie chuandong, 2007
For realizing steel worm gearing by gear oil,test study of the transimission function of steel worm gearing under lubication condition of gear oil and copper-steel worm gearing under lubrication condition of worm oil is carried out .The results indicate ...
何韶君, 刘晓东
doaj  

Upscaling Pulsed Laser Fragmentation in Liquids by Advanced Free‐Flow Setups

open access: yesAdvanced Materials Technologies, EarlyView.
Advanced flow setups providing thin colloid films are introduced to upscale pulsed laser fragmentation in liquids for sustainable nanoparticle synthesis. Their potential is demonstrated by yielding remarkably small ZnO nanoparticles of <7 nm. Numerical simulations complement the study, revealing that the superior performance can be attributed to ...
Jan Lino Kricke   +5 more
wiley   +1 more source

Development of a Process for Optimising the Number of Springs in Modular Elastic Gears of Rack Rail Pinion Systems for Vibration Data-Based Railway System Safety

open access: yesApplied Mechanics
Rack railway systems operating on steep-gradient routes rely on rack-and-pinion propulsion mechanisms that generate substantial vibrational excitation through cyclic gear mesh contact, adversely affecting passenger comfort and long-term mechanical ...
Hyung Suk Mun, Chan Woo Park
doaj   +1 more source

Influence of Shot Peening on Surface Durability of Case-Hardened Steel Gears

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2007
In order to investigate the influence of shot peening on the surface durability of case-hardened steel gears, the case-hardened steel gears shot-peened with different shot velocities and shot diameters were fatigue-tested using a power circulating type ...
Masanori SEKI   +5 more
doaj   +1 more source

Effect of calcium treatment on nonmetallic inclusions in 20CrMnTiH gear steel

open access: yes工程科学学报, 2021
Obtaining high-quality gear steel calls for strict requirements on the oxygen content, shape, composition, size, and distribution of nonmetallic inclusions to ensure high-quality steel and castability of the molten steel during the continuous casting ...
Sha JI   +5 more
doaj   +1 more source

3D Printing of Self‐Healing Polymers by Material Extrusion: A Process‐Centric Review of Setups, Parameters, and Applications

open access: yesAdvanced Robotics Research, EarlyView.
This review highlights recent advances in material extrusion 3D printing of self‐healing polymers, focusing on the interplay between material chemistry, rheology, hardware customization, and process optimization. Filament‐ and ink‐based extrusion strategies, multimaterial architectures, and postprocessing approaches are discussed for applications in ...
Antonio Pavone   +2 more
wiley   +1 more source

Geometrical Specification Model for Gear - Expression, Metrology and Analysis [PDF]

open access: yes, 2007
To ensure the gear precision, industries need a coherent model to express, to analyse and to check geometrical specifications. Most gear tolerance representations are directly driven by the convenience of dimensional metrology and not by the convenience ...
DANTAN, Jean-Yves   +4 more
core   +1 more source

Harnessing Phase Separation for the Development of High‐Performance Hydrogels

open access: yesAdvanced Science, EarlyView.
ABSTRACT Hydrogels are indispensable for the development of next‐generation bioelectronics, soft robotics, and biomedical devices, where their mechanical properties determine performance and reliability. Among strategies to enhance hydrogel mechanics, phase separation enables controlled heterogeneity resulting in gel networks that are reinforced by ...
Yue Shao   +3 more
wiley   +1 more source

Effect of AlN and Zr Microalloying on Thermoplasticity and Grain Size of Carburized Gear Steel

open access: yesTeshugang, 2023
In the carburizing process of gear steel, AlN is often used to control the growth of austenite grains. however, the large amount of AlN precipitation will deteriorate its thermoplasticity and crack sensitivity, and AlN remelts during high temperature ...
Yang Feifei   +4 more
doaj  

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