Probability fatigue strength calculation of auto drive axle housing based on the random loading
ZHENG Yanping1, NI Xiaoyu1, FANG Mingxia2, HE Haibo1
Author information+
1.College of Vehicle and Traffic Engineering, Nanjing Forestry University, Nanjing 210037, China; 2.College of Aerospace Engineering and Mechanics, Tongji University, Shanghai 200092, China
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.
ZHENG Yanping1, NI Xiaoyu1, FANG Mingxia2, HE Haibo1.
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
中图分类号:
U463.218
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1]李舜酩. 机械疲劳与可靠性设计[M]. 北京:科学出版社,2006. [2]江迎春,陈无畏. 基于ANSYS的轿车转向节疲劳寿命分析[J]. 汽车科技,2008(5):32-36. [3]韩兵,朱茂桃,张永建. 铝合金车轮动态弯曲疲劳寿命预测[J]. 农业机械学报,2008(5):208-210. [4]Manson S S, Halford G R. Reexamination of cumulative fatigue damage analysis[J]. Engineering Fracture Mechanics, 1986, 25(5): 539-571. [5]Dottoma V, Giancane S, Nobile R, et al. Fatigue life prediction under variable loading based on a new nonlinear continue damage mechanics model[J]. International Journal of Fatigue, 2006, 28(2): 89-95. [6]郑燕萍,羊玢. 汽车驱动桥壳台架试验的有限元模拟[J]. 南京林业大学学报:自然科学版,2004,28:47-50. [7]朱茂桃,韩兵. 农用运输车驱动桥壳疲劳寿命分布预测[J]. 机械强度,2008,30(1):166-169. [8]余志生. 汽车理论[M]. 北京:机械工业出版社,2006. [9]Agerskov Henning. Fatigue in steel structures under random loading[J]. Journal of Constructional Steel Research, 2000, 53(3): 283-305. [10]Tucker L, Russa S. The SAE Cumulative Fatigue Damage Test Program, In Fatigue Under Complex Loading[M]. Warrendale, USA: SAE, 1977. [11]郑燕萍,王瑜,宋怀兰. 基于CAE的驱动桥壳设计方法探讨[J]. 汽车技术,2007(6):26-29. [12]王铁,张国忠. 路面不平度影响下的汽车驱动桥动载荷[J]. 东北大学学报:自然科学版,2003(1):50-53. [13]王彦伟,罗继伟,叶军,等. 基于有限元的疲劳分析方法及实践[J]. 机械设计与制造,2008(1):22-24. [14]肖守讷,李华丽,阳光武,等. 轮轨冲击对构架疲劳的影响[J]. 交通运输工程学报,2008(6):6-9. [15]苏德强,胡志刚. 改进的DFR法在轨道车辆结构疲劳寿命预测中的应用[J]. 河南科技大学学报:自然科学版,2008,8:32-35.