Zheng Yanping
College of Automobile and Traffic Engineering, NJFU, Nanjing Jiangsu, China
He Zhengang
College of Automobile and Traffic Engineering, NJFU, Nanjing Jiangsu, China
Xu Xiaomei
College of Automobile and Traffic Engineering, NJFU, Nanjing Jiangsu, China
ABSTRACT
Finite life design of automobile components is an important method for lightening the automotive structure and improving vehicle performances. During driving the most typical vibration is the random vibration caused by the road roughness. In this study, by combining mechanical probabilistic fatigue analytical theory with random vibration theory and using CAD/CAE method, the correct finite element vibration analytical model of automotive driving axle casing was established. Based on the fatigue analysis model, a method of finite life design for the driving axle casing was proposed. According to ISO/TC108/SC2N67 the D grade road surface was taken as an example road in this study. The random dynamic load caused by road roughness and the static load of fully loaded vehicle was taken as the analytical load. Combining the Steinberg three-interval method of finite element analysis with Miner linear cumulative damage rule the fatigue life of driving axle casing was estimated. According tothe compulsive end-of-life standard for motor vehicles in China the finite life of driving axle casing can be designed on account of the vehicle end-of-life mileage which is six hundred thousand kilometers. Study results show that the proposed method is feasible and which will provide references for the finite life design of automotive driving axle casing under the random load from actual road surface.
PDF References Citation
How to cite this article
Zheng Yanping, He Zhengang and Xu Xiaomei, 2013. A Design Method of Automotive Driving Axle Casing under the Random Load. Journal of Applied Sciences, 13: 4028-4033.
DOI: 10.3923/jas.2013.4028.4033
URL: https://scialert.net/abstract/?doi=jas.2013.4028.4033
DOI: 10.3923/jas.2013.4028.4033
URL: https://scialert.net/abstract/?doi=jas.2013.4028.4033
REFERENCES
- Agerskov, H., 2000. Fatigue in steel structures under random loading. J. Constructional Steel Res., 53: 283-305.
CrossRef - Lee, K.O., K.H. Bae and S.B. Lee, 2009. Comparison of prediction methods for low-cycle fatigue life of HIP superalloys at elevated temperatures for turbopump reliability. Meter. Sci. Eng. A, 519: 112-120.
Direct Link - Silva, F.S., 2006. Fatigue on engine pistons-A compendium of case studies. Eng. Failure Anal., 13: 480-492.
CrossRef - Zheng, Y.P. and B. Yang, 2004. The finite element simulation of the set experiment for the automotive drive axle housing. J. Nanjing For. Univ., 7: 47-50.
Direct Link - Zheng, Y., Y. Wang and H. Song, 2007. Study on CAE design method for driving axle housing. Automobile Technol., 6: 26-29.
Direct Link - Zheng, S., Y. Wang and X. Lu, 2008. Weight-reduction design of auto structures based on strength features. Chin. J. Mech. Eng., 2: 129-133.
Direct Link - Zhu, J.B., J.H. Chen and P. Lin, 2011. Fatigue life simulation design and research of the taper leaf spring on automobile. J. Chongqing Univ. Technol., 25: 18-22.
Direct Link