Results 21 to 30 of about 23,694,863 (285)

Contact Characteristics Analysis of the Internal Meshing Gear Transmission Pair with Double Contact Points

open access: yesJixie chuandong, 2023
Aiming at the tooth profile contact problem of internal meshing gear transmission pairs with double contact points, the generation method of tooth profiles of the internal meshing gear transmission pair with double contact points is present.
Liang Dong   +4 more
doaj  

Analysis of harmonic gearbox tooth contact pressure

open access: yesIOP Conference Series: Materials Science and Engineering, 2019
Abstract An analysis of a conventional gear wheel shot with MPK methodology has been processed by many authors before. Harmonic gearbox systems are composed of rigid and flexible parts through which the torque is transmitted, thus generating power.
M Majchrak, R Kohar, M Lukac, R Skyba
openaire   +1 more source

Tooth formation in Sudanese children [PDF]

open access: yes, 2011
PhDThe aim of this study was to describe the average age of permanent mandibular tooth formation in two groups of Sudanese children using a cross-sectional design following STROBE guidelines.
Elamin, Fadil
core   +4 more sources

Multi-Point Control for Face-Milled Spiral Bevel Gears with a Predesigned Fourth-Order Motion Curve

open access: yesMachines
This paper presents an ultimate motion methodology of a face-milling spiral bevel gear pair to synthesize the mating tooth surfaces with a predesigned fourth-order motion curve.
Yuhui Liu, Liping Chen, Gang Li
doaj   +1 more source

Study on the contact performance of the variable hyperbolic circular arc tooth trace cylindrical gear with installation errors [PDF]

open access: yesMechanical Sciences
Installation errors are important factor for the contact performance of the variable hyperbolic circular arc tooth trace (VH-CATT) cylindrical gear; the study of the relationship between installation errors and contact performances is beneficial for gear
D. Ma   +5 more
doaj   +1 more source

Tooth Surface Contact Analysis of Involute Rotate Vector Reducer Based on a Finite Element Linear Programming Method

open access: yesIEEE Access, 2019
The deformation compatibility relationship of the general contact object under external normal force and the single secondary internal gear pairs of involute RV reducer under a load torque is derived.
Wei Yang, Xiaolin Tang, Qi Liang
doaj   +1 more source

Finite element modelling and load share analysis for involute worm gears with localised tooth contact [PDF]

open access: yes, 2001
A new approach has been developed by the authors to estimate the load share of worm gear drives, and to calculate the instantaneous tooth meshing stiffness and loaded transmission errors. In the approach, the finite element (FE) modelling is based on the
Gentle, CR, Su, D, Yang, F
core  

Bioinspired Adaptive Surfaces for Intelligent Liquid Manipulation: Progressing From Passive and Active to Hybrid Strategies

open access: yesAdvanced Materials, EarlyView.
This review examines passive, active, and hybrid liquid manipulation strategies, highlighting hybrid approaches as an emerging route to reconcile energy efficiency with adaptive control. By actively reconstructing passive surfaces to store programmable interfacial energy, hybrid systems enable flexible yet low‐power liquid transport, with perspectives ...
Jiaqi Miao   +3 more
wiley   +1 more source

Multi-objective Orthogonal Test Simulation and Modification Parameter Design based on Ease-off Topology

open access: yesJixie chuandong, 2022
To improve the comprehensive dynamic meshing performance of a certain gear product, a design method for controlling the polynomial coefficients of the topological modification of the tooth surface is proposed.
Jiaqi Li, Congcong Song, Bingyang Wei
doaj  

Dental Microwear Texture Analysis on Radular Teeth

open access: yesAdvanced Materials Interfaces, EarlyView.
3D microwear textures reveal how gastropod radular teeth respond to controlled abrasive contact. Distinct surface signatures distinguish regular abrasion from fracture‐dominated material removal, showing how mineralized coatings, fibrous cores, and substrate properties jointly shape wear and failure in a biological scraping interface.
Wencke Krings   +2 more
wiley   +1 more source

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