Surface Temperature Calculation and its Application to Surface Fatigue Strength Evaluation-Reference-Cited by-同舟云学术

Surface Temperature Calculation and its Application to Surface Fatigue Strength Evaluation

Published:2002-11-26 Issue:4 Volume:124 Page:805-812
ISSN:1050-0472
Container-title:Journal of Mechanical Design
language:en
Short-container-title:

Author:

Deng Gang¹,Nakanishi Tsutomu¹,Kato Masana²

Affiliation:

1. Department of Mechanical Systems Engineering, Miyazaki University, Miyazaki, Japan

2. Faculty of Systems Science and Technology, Akita Prefectural University, Akita, Japan

Abstract

In recent years, power transmission gears for vehicles run at higher speeds and loads and are accompanied by very high surface temperatures. Under such a high surface temperature condition, the surface strength cannot be evaluated correctly only by the use of Hertzian stress. This research attempts to introduce a new surface strength evaluation method considering the surface temperature rise. First, the surface temperatures of rollers under different rolling and sliding conditions are measured using a thermocouple. The effects of load P, mean tangential velocity Vm and sliding velocity Vs on surface temperature are investigated and analyzed. Then, an experimental equation is presented which shows the linear relationship between surface temperature and GRP0.86Vs1.31Vm−0.83 value. Based on the comparisons between calculated and measured tooth surface temperatures, this equation is confirmed applicable to gear tooth surface temperature evaluation as well. A surface temperature index is proposed for surface strength evaluation. The relationship between the surface temperature index and the number of load cycles of the rollers is investigated. The results indicate the possibility to evaluate the surface strength based on the surface temperature.

Publisher

ASME International

Subject

Computer Graphics and Computer-Aided Design,Computer Science Applications,Mechanical Engineering,Mechanics of Materials

Link

http://asmedigitalcollection.asme.org/mechanicaldesign/article-pdf/124/4/805/5799416/805_1.pdf

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