|Table of Contents|

Simulation for fatigue life of commercial vehicle steering gear bracket(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2011年01期
Page:
90-94
Research Field:
Publishing date:
2011-02-28

Info

Title:
Simulation for fatigue life of commercial vehicle steering gear bracket
Author(s):
ZHAO Wei-yan1; 2;  GU Xue-song2;  WANG Ke3;  WEI Lang1;  CAO Zu-qiang2
1. School of Automobile, Chang'an University, Xi'an 710064, Shaanxi, China;
2. Institute of Automobile Engineering, Shaanxi Automobile Group Co Ltd, Xi'an 710200, Shaanxi, China;
3. China Dingyuan Automotive Proving Ground, Dingyuan 210028, Anhui, China
Keywords:
automobile engineering;  steering gear bracket;  fatigue life;  finite element analysis;  S-N curve
PACS:
U463.4
DOI:
-
Abstract:
In order to reveal the damage mechanism of the steering gear bracket for a certain commercial vehicle, the maximum force was computed under actual working condition. The finite model of the bracket was built based on the force analysis, and the static strength was analyzed by simulation. The fatigue life of the bracket was analyzed by simulation, based on the S-N method, the sine wave load spectrum and Radioss tool. In the end, the simulation analysis was compared with the real damage forms and physics-chemical analysis. The result shows that the static strength of the steering gear bracket is adequate, but the local life is insufficient and the consistence is poor, the simulation and real damage results are uniform. 2 tabs, 11 figs, 10 refs.

References:

[1] 李 亮,宋 键,文凌波,等.商用车驱动桥壳疲劳寿命的有限元仿真与实验分析[J].机械强度,2008,30(3):503-507. LI Liang,SONG Jian,WEN Ling-bo,et al.Finite elem-ent simulation and test for fatigue life of commercial vehicle driving axle housing[J].Journal of Mechanical Strength,2008,30(3):503-507.
[2]阳光武,肖守讷,金鼎昌.基于分段S-N曲线的频域疲劳损伤估计[J].机械强度,2005,27(4):544-548. YANG Guang-wu,XIAO Shou-ne,JIN Ding-chang.Evaluation of fatigue damage in frequency domain based on subsection S-N curve[J].Journal of Mechanical Strength,2005,27(4):544-548.
[3]Bhattacharya B,Ellingwood B.Continuum damage mechanics analysis of fatigue crack initiation[J].Inter-national Journal of Fatigue,1998,20(9):631-639.
[4]冯国胜,张幽彤,刘兴华,等.汽车CAE软件系统的应用研究[J].客车技术与研究,2003,25(2):6-8. FENG Guo-Sheng,ZHANG You-tong,LIU Xing-hua,et al.Study on the application of automotive CAE software system[J].Bus Technology and Research,2003,25(2):6-8.
[5]廖炳荣,张卫华,肖守讷,等.应用多体有限元法预测车体结构疲劳寿命[J].机械强度,2008,30(6):1003-1007. LIAO Bing-rong,ZHANG Wei-hua,XIAO Shou-ne,et al.Fatigue life prediction applied to car-body structure with multi-body dynamics and FEM[J].Journal of Mechanical Strength,2008,30(6):1003-1007.
[6]吕彭民.基于频域法的结构疲劳寿命预测方法研究[J].山东交通学院学报,2006,14(3):1-5. LU Peng-min.A method of structure fatigue life prediction on the basis of frequency domain[J].Journal of Shandong Jiaotong University,2006,14(3):1-5.
[7]刘晶郁,王少赠,蔡红民.重型载货汽车悬架的优化设计[J].长安大学学报:自然科学版,2008,28(5):103-106. LIU Jing-yu,WANG Shao-zeng,CAI Hong-min.Optimal design of heavy truck suspension[J].Journal of Chang'an University:Natural Science Edition,2008,28(5):103-106.
[8]胡庆安,程 侠,邰卫华.金属材料断裂预测损伤破坏准则的应用[J].长安大学学报:自然科学版,2007,27(4):100-102. HU Qing-an,CHENG Xia,TAI Wei-hua.Application of fracture prediction damage criterion of metal mater-ial[J].Journal of Chang'an University:Natural Science Edition,2007,27(4):100-102.
[9]张 瑜,仇原鹰,孔宪光.基于随机分析的结构高周疲劳寿命估算[J].机械强度,2009,31(6):999-1003. ZHANG Yu,QIU Yuan-ying,KONG Xian-guang.Estimation of structure life of high cycle fatigue based on random process analysis[J].Journal of Mechanical Strength,2009,31(6):999-1003.
[10]苏彦江,王光钦,高 庆.随机应力谱下构件疲劳可靠性分析Miner准则-寿命分布函数法[J].机械强度,2002,24(3):443-445. SU Yan-jiang,WANG Guang-qin,GAO Qing.Miner's rule-life distribution function method for fatigue reli-ability analysis of component under random stresses spectrum[J].Journal of Mechanical Strength,2002,24(3):443-445.

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Last Update: 2011-02-28