Results 71 to 80 of about 47,461 (209)

Surface pitting fatigue life of noninvolute, low-contact-ratio gears [PDF]

Spur gear endurance tests were conducted to investigate the surface pitting fatigue life of noninvolute gears with low numbers of teeth and low contact ratios for use in advanced applications.
Townsend, Dennis P.
core   +1 more source

Effect of extended tooth contact on the modeling of spur gear transmissions [PDF]

In some gear dynamic models, the effect of tooth flexibility is ignored when the model determines which pairs of teeth are in contact. Deflection of loaded teeth is not introduced until the equations of motion are solved.
Coy, John J., Lin, Hsiang Hsi, Oswald, Fred B., Wang, Jifeng   +3 more
core   +1 more source

ANALYSIS ON THE INFLUENCES OF TOOTH PROFILE MODIFICATION ON DYNAMIC LOAD IN A SPLIT PATH TRANSMISSION

Jixie qiangdu, 2015
For two branches of power transmission gear,the bending- torsion- shaft coupling dynamics model and the corresponding nonlinear dynamical equations are established in this paper,with considering the varying mesh stiffness,backlash and the tooth profile ...
DING RenLiang, WANG SanMin
doaj  

Expansion of epicyclic gear dynamic analysis program [PDF]

The multiple mesh/single stage dynamics program is a gear tooth analysis program which determines detailed geometry, dynamic loads, stresses, and surface damage factors.
Boyd, Linda Smith, Pike, James A.
core   +1 more source

Experimental Study on Bending Stress of Spur Gear with Tooth Profile Modification and Finite Element Verification

Jixie chuandong, 2018
The study of static and dynamic meshing characteristics of gears has high theoretical value for improving gear carrying capacity and dynamics performance.
Chen Xueshi, Tang Jinyuan, Chen Siyu, Fu Zhihong   +3 more
doaj  

Method of Cycloid Gear Tooth Profile Modification of RV Reducer

Jixie chuandong, 2017
A kind of eccentricity combined modification method of cycloid gear profile is proposed for solving the problem of the common combination modification method could not simultaneously satisfy the requirements of high bearing capacity and low rotation error.
Zhang Fengshou, Yang Xingxing, Liu Jianting, Li Pengfei   +3 more
openaire   +1 more source

修形人字齿轮传动系统动态特性分析

Jixie chuandong, 2014
The double helical gear addendum modification is achieved by using parabola instead of part of straight line on rack cutter blade.Through a predesigned parabolic function of transmission errors and combined with the equation of the rack cutter blade,the ...
尚鹏, 李建华, 王三民
doaj  

Analytical study on meshing performance of helical cylindrical gears with the coupling of tooth flank morphology and installation error

Journal of Advanced Mechanical Design, Systems, and Manufacturing
This paper investigates the coupling mechanism between installation errors of helical cylindrical gears and tooth flank modification methods on meshing performance.
Chengcheng LIANG, Yihao ZHANG, Longhua LIU, Ruijun LIU   +3 more
doaj   +1 more source

Dynamic measurements of gear tooth friction and load [PDF]

As part of a program to study fundamental mechanisms of gear noise, static and dynamic gear tooth strain measurements were made on the NASA gear-noise rig.
Oswald, Fred B., Rebbechi, Brian, Townsend, Dennis P.   +2 more
core   +1 more source

Comparison of analysis and experiment for gearbox noise [PDF]

, 1992
Low contact ratio spur gears were tested in the NASA gear-noise rig to study the noise radiated from the top of the gearbox. Experimental results were compared with a NASA acoustics code to validate the code for predicting transmission noise.
Atherton, William, Oswald, Fred B., Seybert, A. F., Wu, T. W.   +3 more
core   +2 more sources