Results 111 to 120 of about 249,393 (316)

Study of low-noise face gear drives associated with micro-punch webs

open access: yesAdvances in Mechanical Engineering, 2016
Face gear dynamics is addressed by many scholars. However, design solutions of low-noise face gear drives without gear tooth modifications are not to be constructed.
Zhengminqing Li   +2 more
doaj   +1 more source

Advanced Face Gear Surface Durability Evaluations [PDF]

open access: yes
The surface durability life of helical face gears and isotropic super-finished (ISF) face gears was investigated. Experimental fatigue tests were performed at the NASA Glenn Research Center. Endurance tests were performed on 10 sets of helical face gears
Heath, Gregory F., Lewicki, David G.
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

基于ANSYS的斜齿面齿轮传动的弯曲应力分析

open access: yesJixie chuandong, 2009
The generation of tooth profile of face-gear with helical pinion is studied,the modeling of three-tooth on face-gear drive,and finite element model of the pinion and face-gear is made.The analysis of the bending stress of face-gear drive on different ...
黄丽娟, 朱如鹏
doaj  

Surface roughness detector Patent [PDF]

open access: yes, 1965
Roughness detector for recording surface pattern of ...
Brady, J. C.   +2 more
core   +1 more source

Stability of Perovskite Indoor Photovoltaics: A Focused Review and a Call for Standardized Stability Reporting

open access: yesAdvanced Energy Materials, EarlyView.
While perovskite solar cells have been widely studied, including their stability, perovskite indoor photovoltaics (IPVs) have only recently emerged. Nevertheless, more studies are appearing in the literature. The systematic stability study of IPVs is crucial, particularly given the inconsistencies in reported methodologies and results, which call for ...
Ivy Mawusi Asuo   +7 more
wiley   +1 more source

Improved Gear Shapes for Face Worm Gear Drives [PDF]

open access: yes
Shapes different from the traditional ones have been proposed for face worm gears and for conical and cylindrical worms that mesh with them. The proposed shapes are based on the concept of generating a face worm gear surface by use of a tilted head ...
Fan, Qi   +3 more
core   +1 more source

Dynamics of a split torque helicopter transmission [PDF]

open access: yes, 1992
A high reduction ratio split torque gear train has been proposed as an alternative to a planetary configuration for the final stage of a helicopter transmission. A split torque design allows a high ratio of power-to-weight for the transmission.
Krantz, Timothy, Rashidi, Majid
core   +2 more sources

What to Make and How to Make It: Combining Machine Learning and Statistical Learning to Design New Materials

open access: yesAdvanced Intelligent Discovery, EarlyView.
Combining machine learning and probabilistic statistical learning is a powerful way to discover and design new materials. A variety of machine learning approaches can be used to identify promising candidates for target applications, and causal inference can help identify potential ways to make them a reality.
Jonathan Y. C. Ting, Amanda S. Barnard
wiley   +1 more source

变位面齿轮齿宽特性的研究

open access: yesJixie chuandong, 2009
In order to improve the transmission quality of face-gear,the research status about face-gear at home and abroad are summarized,the addendum modification theory of face-gear is analyzed,a mathematical tooth-width model and a visual three-dimension ...
李永祥   +4 more
doaj  

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