GB/T 14230-2021 Translated English of Chinese Standard (GB/T 14230-2021, GBT14230-2021): Test method of tooth bending strength for gear load capacityhttps://www.chinesestandard.net, 2024. 10. 17. - 48ÆäÀÌÁö This document specifies the principle, purpose, type, method, equipment, failure criteria, procedure, data processing, test report of the bending fatigue strength test of the tooth root of involute cylindrical gears. This document is applicable to the basic data required for the design of the bending fatigue bearing capacity of the tooth root of involute cylindrical gears, which are made of steel or cast iron; it is also applicable to the comparative analysis of the bending fatigue performance of gears under conditions of different materials, different processes, different shaping methods, etc. Similar tests of gears made of other materials or non-involute gears can make reference to this standard. |
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according to formula bending fatigue limit bending strength calculation C-R-S-N curve Calculation example Chapter confidence level confidence lower limit content of Appendix conventional grouping method determine distribution function matrix Failure analysis fatigue limit stress few-point combination method GB/T gear material gear teeth incorporating the content indexing numbers involute linear correlation coefficient load capacity load change method load distribution factor load point Location parameter logarithmic Logarithmic mean logarithmic normal distribution lognormal distribution N/mm©÷ Newton meters normal distribution function number of cycles number of test overshoot point pressure angle pulsating test reference S-N curve requirements root bending fatigue root transition curve running type test S-N curve equation Shape parameter shot peening shown in formula standard deviation Step loading method Table C.3 test data test gear tooth test machine test methods test points three-parameter Weibull distribution tooth profile tooth root bending Tooth root stress tooth top up-down load change Weibull distribution function Zhengzhou