Probability fatigue strength calculation of auto drive axle housing based on the random loading

ZHENG Yanping1, NI Xiaoyu1, FANG Mingxia2, HE Haibo1

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2009, Vol. 33 ›› Issue (05) : 105.

南京林业大学学报（自然科学版）
JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2009, Vol. 33 ›› Issue (05) : 105. DOI: 10.3969/j.jssn.1000-2006.2009.05.023

Probability fatigue strength calculation of auto drive axle housing based on the random loading

  • ZHENG Yanping1, NI Xiaoyu1, FANG Mingxia2, HE Haibo1
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Abstract

The mechanical model of finite element vibration analysis about the automobile drive axle housing was built by using the CAD/CAE designing method and combining the probability fatigue strength analysis theory with the automobile vibration theory. The fatigue strength check and the fatigue life prediction about the automobile drive axle housing were investigated based on the probability calculation results of road spectrum random loading. Furthermore,the fatigue life prediction method of the drive axle housing was proposed based on the calculation result of the CAE random vibration. The result showed that the distribution of 1σ stress in the drive axle could be directly reflected the result of Random vibration when the vehicle was driving, the great stress distributed in the middle part of drive axle and the regions which were the larger upper and lower surface in the inner and the outer of the spring block of steel sheet.

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ZHENG Yanping1, NI Xiaoyu1, FANG Mingxia2, HE Haibo1. Probability fatigue strength calculation of auto drive axle housing based on the random loading[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2009, 33(05): 105 https://doi.org/10.3969/j.jssn.1000-2006.2009.05.023

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