Contact Stress Analysis for a Round Body Indenting a Linearly Viscoelastic Slab, by Point Matching

1969 ◽  
Vol 36 (3) ◽  
pp. 626-628 ◽  
Author(s):  
P. A. Engel ◽  
H. D. Conway
Keyword(s):  
Stress Analysis ◽  
Contact Stress ◽  
Point Matching

Comparative study of stress analysis of gears with different helix angle using the ISO 6336 standard and tooth contact analysis methods

2016 ◽  
Vol 230 (7-8) ◽  
pp. 1350-1358 ◽  
Author(s):  
Layue Zhao ◽  
Robert C Frazer ◽  
Brian Shaw
Keyword(s):  
Stress Analysis ◽  
Contact Stress ◽  
Helix Angle ◽  
Contact Analysis ◽  
Bending Stress ◽  
Contact Ratio ◽  
Tooth Contact Analysis ◽  
Tooth Contact ◽  
Iso Standard ◽  
Analysis Methods

With increasing demand for high speed and high power density gear applications, the need to optimise gears for minimum stress, noise and vibration becomes increasingly important. ISO 6336 contact and bending stress analysis are used to determine the surface load capacity and tooth bending strength but dates back to 1956 and although it is constantly being updated, a review of its performance is sensible. Methods to optimise gear performance include the selection of helix angle and tooth depth to optimise overlap ratio and transverse contact ratio and thus the performance of ISO 6336 and tooth contact analysis methods requires confirmation. This paper reviews the contact and bending stress predicted with four involute gear geometries and proposes recommendations for stress calculations, including a modification to contact ratio factor Zɛ which is used to predict contact stress and revisions to form factor YF and helix angle factor Yβ which are cited to evaluate bending stress. The results suggest that there are some significant deviations in predicted bending and contact stress values between proposal methods and original ISO standard. However, before the ISO standard is changed, the paper recommends that allowable stress numbers published in ISO 6336-5 are reviewed because the mechanisms that initiate bending and contact fatigue have also changed and these require updating.

scholarly journals Contact stress analysis for a pair of mating gears

2013 ◽  
Vol 57 (1-2) ◽  
pp. 40-49 ◽  
Author(s):  
Seok-Chul Hwang ◽  
Jin-Hwan Lee ◽  
Dong-Hyung Lee ◽  
Seung-Ho Han ◽  
Kwon-Hee Lee
Keyword(s):  
Stress Analysis ◽  
Contact Stress

Contact Stress Analysis of Gear of Crane Gearbox

2007 ◽  
Author(s):  
Zhonglai Wang ◽  
Bo Yang ◽  
Hong-Zhong Huang ◽  
Qiang Miao ◽  
Dan Ling
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Stress Analysis ◽  
Contact Stress ◽  
Optimization Method ◽  
Probability Of Failure ◽  
Engineering Problem ◽  
Gear Transmission ◽  
Practical Engineering ◽  
Practical Engineering Problem

Gears are widely used in many practical engineering to transmit torque. In the process of meshing, contact stress will be produced which causes pitting. Shock becomes more and more serious with the increase of pitting and the probability of failure of meshing gears increases. Contact stress analysis is necessary and important to increase the reliability of gear transmission. In this paper, a fuzzy Hertz approximate optimization method and finite element method are used to deal with a practical engineering problem.

Elasto-plastic contact stress analysis of joints subjected to cyclic loading

1996 ◽  
Vol 60 (6) ◽  
pp. 1067-1077 ◽  
Author(s):  
K.Satish Kumar ◽  
B. Dattaguru ◽  
T.S. Ramamurthy ◽  
K.N. Raju
Keyword(s):  
Cyclic Loading ◽  
Stress Analysis ◽  
Contact Stress
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