Results 51 to 60 of about 183,763 (307)

Epicyclic Gear Train Synthesis

open access: yesCommunications, 2015
The synthesis of an epicyclic gear train is a difficult task that can be solved by different methods with significantly various computational time demands. This article describes effective approach to the two-linked epicyclic gear train synthesis.
Frantisek Brumercik   +2 more
doaj   +1 more source

Autonomous Ticking Clocks from Axiomatic Principles

open access: yes, 2021
There are many different types of time keeping devices. We use the phrase ticking clock to describe those which -- simply put -- "tick" at approximately regular intervals.
Woods, Mischa P.
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

Serpentuator Patent [PDF]

open access: yes, 1970
Internal and external serpentine devices for performing physical operations around orbital space ...
Wuenscher, H. F.
core   +1 more source

Active Metamaterials with Tunable Shear Nonreciprocity and Nonlinear Dynamics

open access: yesAdvanced Science, EarlyView.
Active gear‐based mechanical metamaterials enable simultaneous control of translational and torsional stiffnesses by 30–100×, break shear reciprocity under positive versus negative loads, broadly tune resonant frequencies, and offer programmable dynamic responses.
Xin Fang, Miao Yu, Dianlong Yu, Li Cheng
wiley   +1 more source

Stability Analysis of Magnetic Gear with Thin Metal Sheet

open access: yesJixie chuandong, 2019
In the transmission process of coaxial magnetic gear, aiming at the problems of large torque ripple and high magnetic density in air-gap, a magnetic gear with thin metal sheet is studied. The structure fixates a layer of conductive and non-magnetic metal
Jing Libing Chen Junlin
doaj  

Design of aircraft turbine fan drive gear transmission system [PDF]

open access: yes
The following basic types of gear reduction concepts were studied as being feasible power train systems for a low-bypass-ratio, single-spool, geared turbofan engine for general aircraft use: (1) single-stage external-internal reduction, (2) gears (offset
Dent, E., Hirsch, R. A., Peterson, V. W.
core   +1 more source

Dynamics of a Gear System with Faults in Meshing Stiffness [PDF]

open access: yes, 2004
Gear box dynamics is characterised by a periodically changing stiffness. In real gear systems, a backlash also exists that can lead to a loss in contact between the teeth.
Friswell, Michael I., Litak, Grzegorz
core   +1 more source

Self‐Powered Bearing Sensing and Real‐Time Fault Diagnosis Enabled by Non‐Invasive Triboelectric Sensors and Edge AI Acceleration

open access: yesAdvanced Science, EarlyView.
This study achieves the synergistic integration of self‐powered sensing and edge AI acceleration to establish a real‐time fault diagnosis system. The proposed TENG‐based self‐powered bearing sensor (NSE‐TBS) and FPGA‐accelerated edge AI framework fundamentally break through the inherent limitations of conventional monitoring systems, including complex ...
Kehui Zhu   +7 more
wiley   +1 more source

Research of the Dynamic Load Sharing of Heavy Load Planetary Gear System with Multi- floating Component

open access: yesJixie chuandong, 2016
To study the influence of multi- floating components on the load sharing of heavy load planetary gear system,taking a large wind power planetary gear system as the research object.
Xu Xiangyang   +3 more
doaj  

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