Results 31 to 40 of about 55,331 (264)
Accuracy Control of Hourglass Worm Gearing. Analysis of Tooth Shape and Tooth Contact.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1998 Feeding under-cutting of Lorentz wheel cutting method of Hindley hourglass worm gearing is analyzed at first. And the shape of the wheel tooth surface is made clear by the analysis and the measuring method of the wheel by 3-dimensional coordinate measuring machine is proposed. Statical and dynamical tooth contact are analyzed to control the accuracy of
XIN, Ji Sheng +2 more
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Modified Titanium Dental Implants: The Current Progress of Soft‐Tissue Integration Methods
Advanced NanoBiomed Research, EarlyView.Dental implants are an established solution for tooth loss, yet achieving soft tissue integration (STI) around the transmucosal region remains a challenge. The natural tooth–gingiva interface is poorly replicated on titanium implants. This review explores surface modification strategies, ranging from surface chemistry and topography to biological ...
Daniel De Maria +5 more
wiley +1 more source
Study on Contact Stress Distribution of Single Tooth Meshing Dangerous Area of Heavy Load Gear
Jixie chuandong, 2017 Aiming at the large-modulus and special-weight heavy-duty gears,the gear contact stress analysis model is established to study the contact characteristics of the tooth surface during the meshing process.By using the two methods of Abaqus finite element ...
Yao Jun
doaj
Journal of Applied Polymer Science, EarlyView.Cooling holes provide a simple passive cooling strategy for polymer spur gears, reducing maximum operating temperature by up to 9.39% while introducing a measurable gear mesh stiffness penalty. A validated response‐surface model reveals how hole size and location govern this thermal–mechanical trade‐off, enabling design optimization for thermally and ...
Abderrahim Baccar +5 more
wiley +1 more source
Tooth Contact Analysis and Adjustment Calculation of Real Tooth Surfaces of Hypoid Gears
Jixie chuandong, 2023 For the purpose of adjusting the calculation of the contact pattern of real hypoid gears, the double third-power spline surface is used for fitting tooth surfaces of pinions and gears accurately according to the measurement results of the gear surface. Based on the two-dimension golden section method for increasing the density of gear grid mesh points,
Han Kunpeng, Yang Jianjun
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The Anatomical Record, EarlyView.Abstract The Pleistocene is a key period for understanding the evolutionary history and palaeobiogeography of the European rabbit (Oryctolagus cuniculus). The species was first documented in southeastern Iberia at the beginning of the Middle Pleistocene and appears to have rapidly spread throughout Southwestern Europe, where it was found in numerous ...
Maxime Pelletier
wiley +1 more source
Contact simulation of tooth flanks using Isogeometric Analysis
, 2023 The Finite Element (FE) modelling of a tooth flank affects both the accuracy of the results aswell as the computational time and resources required. In FE Analysis (FEA), the involutecurve is modelled by linear segments, thus deviations from its actual geometry are introduced. In order to achieve accurate results, the mesh must be generated as dense as
C. Karampatzakis +3 more
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The Anatomical Record, EarlyView.A new musculoskeletal reconstruction and revision of the cranio‐mandibular anatomy of the Devonian arthrodire placoderm Dunkleosteus terrelli from a comparative and functional anatomical perspective. Dunkleosteus is a specialized arthrodire with many specializations for feeding on large vertebrates, and many of its features are part of broader ...
Russell K. Engelman +4 more
wiley +1 more source
Jixie chuandong, 2021 The contact characteristics of a nutation drive with double circular-arc spiral bevel gears are extremely sensitive to installation errors. To reveal the effects of installation errors on contact characteristics，the tooth surface contact analysis of ...
Qin Chen +4 more
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Meshing characteristics of variable hyperbolic circular-arc tooth trace cylindrical gears with cutter errors [PDF]
Mechanical SciencesWe investigate the relationship between cutter errors and meshing characteristics of the variable hyperbolic circular-arc tooth trace (VH-CATT) cylindrical gears. Firstly, based on the tooth surface forming principle, the tooth surface mathematical model
D. Ma, J. Long, Z. Zhu
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