Results 31 to 40 of about 2,693,515 (272)

Analytical algorithm for time-varying meshing stiffness of modified herringbone gear pair

open access: yesXibei Gongye Daxue Xuebao, 2022
This paper jointly uses the slicing method and the potential energy method to propose an analytical algorithm that considers the meshing stiffness of the modified herringbone gear pair and its axial force.
ZOU Haoran   +4 more
doaj   +1 more source

Circumferential spatial tooth profile modification of flexspline for strain wave gear (A novel method and a case study)

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2023
Strain wave gear, also known as "harmonic drive" is widely used in the industrial robotics field due to the excellent deceleration performance.
Jianzhong HUANG   +4 more
doaj   +1 more source

Multi-Tooth Contact Analysis and Tooth Profile Modification Optimization for Cycloid Drives in Industrial Robots [PDF]

open access: yes, 2023
Cycloid drives are widely used in industrial robots where high load carrying capacity, accurate positioning precision and smooth motion are required strictly.
He, Haidong, Li, Xuan, Zhang, Ting
core   +1 more source

Effect of Tooth Profile Modification on Dynamic Tooth Load of Planetary Gear Train

open access: yesShock and Vibration, 2019
This paper aims at investigating the effects of tooth profile modification (TPM) on the dynamic response of planetary gear train (PGT). A numerical model is carried out to calculate two major excitation sources of PGT, time‐varying mesh stiffness (TVMS), and transmission errors (TEs).
Jiaming Zhou   +5 more
openaire   +2 more sources

Microgeometrical tooth profile modification influencing efficiency of planetary hub gears [PDF]

open access: yesInternational Journal of Powertrains, 2018
Planetary hub systems offer desired speed and torque variation with a lighter, compact and coaxial construction than the traditional gear trains. Generated friction between the mating teeth flanks of vehicular planetary hubs under varying load-speed conditions is one of the main sources of power loss.
fatourehchi, Ehsan   +6 more
openaire   +1 more source

Effect of tooth profile modification on wear in internal gears

open access: yesIOP Conference Series: Materials Science and Engineering, 2018
Internal gears are often used in the automotive industry when two gears are required to rotate in the same direction. Tooth shapes, slippage speeds at the beginning and end of meshing are different according to the external gears. Manufacturing of internal gears is more difficult than external gears.
Tunalıoğlu, Mert Şafak, Tuç, Bedri
openaire   +1 more source

Measurement of tooth size and shape in subjects with hypodontia and a control group using a new image analysis technique. [PDF]

open access: yes, 2000
The literature referred to here provided information concerning the epidemiology of hypodontia and its association with other developmental anomalies.
Al-Sharood, Mohammad H
core   +6 more sources

Analysis of the Modification Sensitivity of Herringbone Gear

open access: yesJixie chuandong, 2022
In order to improve the applicability of herringbone gear modification results, it is necessary to analyze the sensitivity of gear surface modification parameters.
Yong Zhao   +5 more
doaj  

Spatial Tooth Profile Design and Optimization Analysis of Involute Harmonic Gear

open access: yesJixie chuandong, 2021
In order to improve the meshing performance of the involute tooth profile harmonic gear, the conjugate tooth profile discrete points in design section are obtained with an exact conjugate algorithm using assembly deformation of the flexspline,and the ...
Hongyan Wu, Xiaoxia Chen, Jingzhong Xing
doaj  

Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite

open access: yesAdvanced Functional Materials, EarlyView.
The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen   +16 more
wiley   +1 more source

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