Results 61 to 70 of about 1,993,058 (236)

Design Method for Tooth Profile of Harmonic Drive Considering the Spatial Deformation of Flexspline

open access: yesJixie chuandong, 2021
In order to solve the problem that the tooth designed in plane has profile interference under the influence of spatial deformation of the flexspline,a bidirectional conjugate method considering the spatial deformation of the flexspline is proposed.
Shuang Wang, Hao Qiu, Gedong Jiang
doaj  

Contact Pressure and Shear Stress Analysis on Conforming Contact Problem

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2008
Two methods to solve a conforming contact problem are proposed. First method is general and can be applicable to the contact case between elastic arbitrary shape bodies.
Haruo NAGATANI, Akitoshi IMOU
doaj   +1 more source

Why (and When) are Preferences Convex? Threshold Effects and Uncertain Quality [PDF]

open access: yes, 2009
It is often assumed (for analytical convenience, but also in accordance with common intuition) that consumer preferences are convex. In this paper, we consider circumstances under which such preferences are (or are not) optimal.
Tasnádi, Attila, Smith, Trenton G.
core   +1 more source

Revealing the Underlying Mechanisms in Performance Enhancement of Shellular Lattice Electrodes During Anion Exchange Membrane Water Electrolysis Process

open access: yesAdvanced Science, EarlyView.
Micro laser powder bed fusion enables architected nickel shellular lattice gas diffusion layers for anion exchange membrane water electrolysis. Among regular open cell geometries, the Gyroid lattice promotes bubble release, convective reactant replenishment and continuous electron transport, delivering low overpotentials, enhanced charge transfer and ...
Tianxiao Niu   +7 more
wiley   +1 more source

点线啮合齿轮接触静强度计算研究

open access: yesJixie chuandong, 2011
Referencing contact static strength calculation methods of involute cylindrical gear,contact static strength calculation methods of point-line meshing gear is put forward.Calculation methods are proposed in two conditions about the maximal contact stress
黄海   +4 more
doaj  

New Inequalities of Hermite-Hadamard Type for Functions Whose Second Derivatives Absolute Values are Quasi-Convex [PDF]

open access: yes, 2009
In this note we obtain some inequalities of Hermite-Hadamard type for functions whose second derivatives have quasi-convex absolute values.
Dragomir, Sever S   +2 more
core   +3 more sources

EFFECTS OF CURVATURE OF LOADING SURFACE ON MECHANICAL PROPERTIES OF PIEZOMAGNETIC MATERIAL SHEETS

open access: yesJixie qiangdu, 2016
In measurement of interlayer stress between cylindrical or spherical contact convex-concave interfaces with related big curvature,the flat sensitive element will be curved to the form of the measured contact surfaces,which can cause measurement errors ...
YIN YiHui   +3 more
doaj  

Development of Concave-convex Tooth Chainless Traction Walking System of Shearer

open access: yesJixie chuandong, 2020
The rectangular coordinate equation of the concave-convex gear is established, the convex tooth surface is simulated by Matlab, the three-dimensional model of the gear-rail system is established according to the tooth profile, and the stress state is ...
Guang Wang
doaj  

Cross‐scale Material‐Structure Synergy for 2D Metamaterials: Toward Customizable Intelligent Electromagnetic Manipulation in Multiphysics Fields

open access: yesAdvanced Science, EarlyView.
Recent advances in metasurface‐enabled low‐observable technologies are reviewed from the perspective of cross‐scale material–structure synergy. Electromagnetic, thermal, optical, and acoustic stealth are highlighted together with dynamic tuning, programmable coding, data‐driven inverse design, artificial intelligence, multispectral compatibility, and ...
Shuhao Wang   +5 more
wiley   +1 more source

Dynamic Contact Analysis of Torus-involute Gear

open access: yesJixie chuandong, 2015
Taking the torus-involute gear as study object,according to the theory of gear meshing and the gear hobbing process,the tooth surface equations of torus-involute gears with convex and concave teeth are derived by using the tooth surface equation of ...
Fang Meijuan, Liu Lei
doaj  

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