Results 91 to 100 of about 63,844 (255)
Jixie chuandong, 2011 Due to the characteristics of modification coefficient change along the axial in variable tooth thickness gears,the contact angle,cone angle,contact ratio,pressure angle of addendum circle in different normal section,sliding rate and other parameters are
蒋汉军, 王光建, 褚志刚
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Dynamic Analysis of Helical Gears With Sliding Friction and Gear Errors
IEEE Access, 2018 In helical gears, the meshing stiffness fluctuation caused by the time-varying contact lines and gear errors is a main factor affecting the dynamic characteristics of the helical gears.
Wenchao Mo, Yinghou Jiao, Zhaobo Chen
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Testing of UH-60A helicopter transmission in NASA Lewis 2240-kW (3000-hp) facility [PDF]
The U.S. Army's UH-60A Black Hawk 2240-kW (3000-hp) class, twin-engine helicopter transmission was tested at the NASA Lewis Research Center. The vibration and efficiency test results will be used to enhance the data base for similar-class helicopters ...
Coe, H. H. +2 more
core +1 more source
Advanced Engineering Materials, EarlyView.A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora +4 more
wiley +1 more source
Study on the Influence of Modified Design on the Dynamic Characteristics of the Helical Gear System
Jixie chuandongIn order to study the dynamic characteristics of helical gears with different modified designs, a pair of standard gears and modified gears are taken as comparative experimental objects, and the dynamics model of a modified helical gear system is ...
Wang Ruoyi, Yang Jianwei, Wang Jinhai
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Engineering Science and Technology, an International JournalTo enhance the meshing characteristics of the face gear pair and determine the optimal modification parameters, an optimization model of modification parameters, based on the TCA-NRBPNN-HYPE (Tooth Contact Analysis-Newton Raphson Back Propagation Neural ...
Kun He +4 more
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Jixie chuandong, 2021 When a gear has a pitting fault，the vibration response characteristics caused by its time-varying meshing stiffness change is an important basis for the diagnosis of pitting faults，and an accurate gear geometry model is of great significance for the ...
Chaoyang Jiang, Yanxue Wang, Junjie Lai
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Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere
Advanced Engineering Materials, EarlyView.A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz +4 more
wiley +1 more source
Study on meshing characteristics of linear conjugate internal gear pairs
Jixie chuandongObjectiveA study was conducted to address the unclear variation patterns of meshing characteristics in linear conjugate internal gear pairs.MethodsBased on the parametric model of linear conjugate internal gear pairs, theoretical expressions for pressure
LIANG Yundong +5 more
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EFFECTS OF INVOLUTE SPUR GEAR STRUCTURE PARAMETERS ON MESHING EFFICIENCY
Jixie qiangdu, 2015 Based on the concept of contact counterforce between gear pair,the paper studied the meshing efficiency of involute spur gear mechanism,analyzed the effect factors of friction coefficient between contact tooth surfaces. Referring to the existent research
ZHANG BaoFeng +3 more
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