Results 121 to 130 of about 15,802,205 (308)

Study the Effects From Gear Rim Thickness on the Gear Pair Time-Varying Mesh Stiffness and Dynamic Behaviors

open access: yes, 2017
This work will introduce two methods for calculating the gear mesh stiffness which includes the potential energy method and Finite Element/ Contact Mechanics method.
Chaosheng Song, Caichao Zhu, Zi Wang
core   +1 more source

Microfluidic Engineering of Microgels: A Review of Emerging Technologies, Materials, Fabrication Strategies, and Applications

open access: yesAdvanced Healthcare Materials, EarlyView.
Recent advances in microfluidic technologies for microgel fabrication are critically reviewed, highlighting the capabilities and limitations of major microfluidic platforms and discussing how platform design, material selection, and crosslinking strategies influence microgel architecture and functionality. Current challenges and future opportunities in
Afshin Abrishamkar   +6 more
wiley   +1 more source

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

open access: yesAdvanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj   +8 more
wiley   +1 more source

Research of the Effect of Bearing Stiffness and Gear Helix Angle on Vibration Noise of Gear Reducer

open access: yesJixie chuandong, 2015
The dynamics model of the cylindrical gear transmission system is built in consideration of the time-varying mesh stiffness and gear errors.The dynamic load of the bearing is taken as the excitation,the vibration and noise radiation of the gear reducer ...
Zhou Jianxing, Sun Wenlei, Cui Quanwei
doaj  

Investigation into the tribodynamics of spur gear pairs considering pitch deviations and lubrication

open access: yesFriction
Pitch deviation, a type of longwave deviation, has been demonstrated to be a significant contributor to noise generation in the drive trains of motor vehicles operating at relatively high speeds. To date, numerous studies have investigated the effects of
Lintao Duan   +8 more
doaj   +1 more source

Study of the Modeling of the Gear Dynamics Considering Mesh Stiffness and Sliding Friction

open access: yes, 2010
Time- varying mesh stiffness and sliding friction between teeth are the great excitation for vibration and noise in gears system. But, there are rarely studies on this topic.
Cheng Zhong Gu, Xin Yue Wu
core   +1 more source

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

open access: yesAdvanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández   +15 more
wiley   +1 more source

Stiffness Calculation Considering Friction for a Spur Gear Pair with Tooth Wear and Profile Modification

open access: yes工程科学与技术, 2018
Time varying mesh stiffness is one of the main reasons leading to the vibration in a gear transmission system.In order to obtain more accurate dynamic characteristics of gear systems,it is important to investigate the influence of sliding friction and ...
Yong YANG   +4 more
doaj  

Nano‐Architected Metallic Metamaterial With Enhanced Fatigue Resistance via Dislocation Starvation

open access: yesAdvanced Materials, EarlyView.
Nanoscale Ni single crystals exhibit remarkable fatigue resistance over an order of magnitude higher than that of bulk single crystals through dislocation starvation. By translating this mechanism into geometric nano‐architecture, nano‐architected Ni single‐crystal metamaterials achieve about twice the fatigue resistance of the bulk, despite their ...
Kota Sugisaka   +7 more
wiley   +1 more source

基于TYCON的变速箱动力学仿真

open access: yesJixie chuandong, 2007
In order to study the dynamic characteristics of the gearbox,TYCON has been used to construct the model,considering main influence factors such as the time-varying mesh stiffness,mesh damping,composite gear error,dynamic input and loading,torsional and ...
邓晓龙, 刘国庆
doaj  

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