Results 31 to 40 of about 1,977,712 (188)

Static Modelling and Analysis of a Novel Movable Tooth Drive with Logarithmic Spiral Tooth Profiles

open access: yesMachines, 2022
This paper presents a static model for a novel movable tooth drive with logarithmic spiral tooth profiles, to research contact force and load distribution during the meshing period.
Guocheng Zhou, Yuhu Yang
doaj   +1 more source

Influence of Occlusal Contacts on Tooth Displacement.

open access: yesTHE JOURNAL OF THE STOMATOLOGICAL SOCIETY,JAPAN, 2000
During function, the tooth displacement path depends on occlusal contacts of the upper and lower teeth. Therefore, we must reconstruct occlusal relation carefully so as not to disturb physiological tooth displacement. In this investigation, tooth displacements were measured with the Displacement Transducer type M-3 in varying occlusal contact.
openaire   +3 more sources

Tooth Contact Patterns at the Mandibular Retruded Contact Position

open access: yesNihon Hotetsu Shika Gakkai Zasshi, 2003
目的: 後方歯牙接触の顎機能に対する影響を検討する目的で, 健常有歯顎の被験者を対象として後方歯牙接触部位の記録を行い, これらの部位が歯列内においてどのように分布しているのかを分析した.方法: 被験者は健常有歯顎者283名とした. 術者は下顎の最後方位への誘導術式に十分習熟した歯科医師1名とし, 下顎頭が最後方位に誘導された際の歯牙接触部位に関して, 咬合紙を用いて記録した. 分析は, 接触歯の側性, 接触歯種, 接触歯数の3項目について, 接触歯群に基づく被験者の分類を加味して行った.結果: 1. 接触様式が両側性の被験者と片側性の被験者との比率は約6: 4であった. 2. 接触頻度の高かった接触歯種は, 第一小臼歯, 第二大臼歯の順であった. 3. 接触歯数は約8割の被験者で2歯以内であった.
Yamashita, Shuichiro   +3 more
openaire   +2 more sources

Numerical Analysis of Tooth Contact and Wear Characteristics of Internal Cylindrical Gears with Curved Meshing Line

open access: yesApplied Sciences
In order to improve the contact strength and reduce the sliding friction of the gear pair, an internal cylindrical gear pair with a curved meshing line is studied in this paper. Firstly, a curved meshing line is designed.
Chao Jia, Ge Zhang, Guoju Li
doaj   +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  

Calculation of gear mesh stiffness and loaded tooth contact analysis based on ease-off surface topology

open access: yesAdvances in Mechanical Engineering, 2022
Based on the theory of rack-gear common-tangential conjugate generating, the constructing of ease-off surface has been done by means of the topology modification of polynomial surface.
Bing-Yang Wei   +3 more
doaj   +1 more source

Prediction Mathematic Model and Influencing Factors of Contact Stress of Cylindrical Gear with Arc Tooth

open access: yesComplexity, 2020
Given the absence of a theoretical formula to analyze the influence of parameters on the contact stress of cylindrical gear with arc tooth, an explicit mathematical model of cylindrical gear with arc tooth between the design parameters and the contact ...
Qi Zhang   +5 more
doaj   +1 more source

Study on Contact Stress Distribution of Single Tooth Meshing Dangerous Area of Heavy Load Gear

open access: yesJixie 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  

Efficient all-optical wavelength conversion scheme based on a saw-tooth pulse shaper [PDF]

open access: yes, 2009
We experimentally demonstrate the use of saw-tooth optical pulses, generated using a superstructured fiber Bragg grating, to achieve high performance and efficient all-optical wavelength conversion in a scheme based on cross-phase modulation in a highly ...
Ibsen, M.   +3 more
core   +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

Home - About - Disclaimer - Privacy