某重型自卸车不同工况下车架的疲劳寿命分析

唐华平; 唐海红; 袁夏丽

doi:10.13433/j.cnki.1003-8728.2016.1118

某重型自卸车不同工况下车架的疲劳寿命分析

doi: 10.13433/j.cnki.1003-8728.2016.1118

1.
中南大学高性能复杂制造国家重点实验室, 长沙 410083

基金项目:

国家高新技术研究发展计划（“863”计划）项目（2012AA041805）与湖南省科技重大专项计划项目（2010FJ1003-2）

详细信息

作者简介:
唐华平(1964-),教授,博士生导师,研究方向为智能结构设计与控制、机械运动与振动,huapingt@csu.edu.cn

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出版历程
- 收稿日期: 2015-03-06
- 刊出日期: 2016-11-05

Fatigue Life Analysis of a Heavy Dump Truck Frame Under Different Load Conditions

1.
State Key Laboratory of High-Performance Complex Manufacturing, Center South University, Changsha 410083, China

摘要

摘要: 为研究某重型电动轮自卸车车架疲劳寿命，根据其实际作业情况，采用惯性释放法对车架进行了各工况的有限元静力学分析。在此基础上通过准静态应力分析获得了车架关键部位应力响应因子，结合车架材料的S-N曲线。根据线性累积损伤理论及各工况载荷比重对车架进行了全寿命分析，并估算了车架总的疲劳寿命。结果表明：各工况的最大应力均未超出车架材料的屈服极限，应力的仿真数值和试验值误差在12%内，满足静强度要求。满载状态下车架的疲劳寿命大于16 814 h，基本能满足使用寿命要求。
- 车架 /
- 疲劳寿命 /
- 有限元 /
- 准静态分析
Abstract: In order to study the fatigue life of dump truck under an actual working condition, the finite element static analysis of frame under different load conditions has been done by using the inertial release method. Based on the above analysis, the stress response factor on the key positions of frame has been obtained by using the quasi-static stress analysis. According to the linear cumulative damage theory and the loads proportion, the fatigue life has been calculated combining the S-N curve of frame materials. The results show that all the maximum stress is below the yield limit of frame material, the errors between the simulation frame stress value and the experimental are less than 12%, which meet the strength requirements. The fatigue life of frame under full load condition is more than 16 814 hours, which basically meet the requirements of service life.
- frame /
- fatigue life /
- finite element method /
- quasi-static analysis

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参考文献(14)

[1]	郑松林,刘洋,冯金芝,等.受到随机载荷作用的前副车架疲劳耐久仿真分析[J].机械强度,2014,36(5):773-778 Zheng S L, Liu Y, Feng J Z, et al. Virtual fatigue analysis of front sub-frame subjected to random loading[J]. Journal of Mechanical Strength, 2014,36(5):773-778(in Chinese)
[2]	韩鲁明.基于CAE技术的某半挂车车架疲劳寿命预估研究[D].南京:南京理工大学,2007 Han L M. Study on fatigue life prediction of a semi-trailer frame based on CAE Technology[D]. Nanjing:Nanjing University of Science and Technology, 2007(in Chinese)
[3]	陈栋华,靳晓雄,周鋐,等.轿车底盘零部件耐久性虚拟试验方法研究[J].汽车工程,2007,29(11):998-1001 Chen D H, Jin X X, Zhou H, et al. A study on virtual durability test method for car chassis components[J]. Automotive Engineering, 2007,29(11):998-1001(in Chinese)
[4]	Lee S H, Park T W, Park J K, et al. A fatigue life analysis of wheels on guide-way vehicle using multibody dynamic[J]. International Journal of Precision Engineering and Manufacturing, 2009,;0(5):79-84
[5]	Topaç M M, Günal H, Kuralay N S. Fatigue failure prediction of a rear axle housing prototype by using finite element analysis[J]. Engineering Failure Analysis, 2009,16(5):1474-1482
[6]	蒋政.某重型载货汽车耐久性试验与数值分析[D].长沙:湖南大学,2011 Jiang Z. The durability test and numerical analysis of a heavy truck[D]. Changsha:Hunan University, 2011(in Chinese)
[7]	Shao Y M, Liu J, Mechefske C K. Drive axle housing failure analysis of a mining dump truck based on the load spectrum[J]. Engineering Failure Analysis, 2011,18(3):1049-1057
[8]	阳清泉,谷正气,米承继,等.SF33900型矿用自卸车车架疲劳寿命分析[J].汽车工程,2011,34(11):1015-1019 Yang Q Q, Gu Z Q, Mi J C, et al. An analysis on the fatigue life of frame in SF33900 mining dump truck[J]. Automotive Engineering, 2011,34(11):1015-1019(in Chinese)
[9]	赵婷婷,李长波,王军杰,等.基于有限元法的某微型货车车身疲劳寿命分析[J].汽车工程,2011,33(5):428-432 Zhao T T, Li C B, Wang J J, et al. Fatigue life analysis of a mini truck body based on FEM[J]. Automotive Engineering, 2013,33(5):428-432(in Chinese)
[10]	张强.矿用自卸汽车车架强度有限元分析及试验研究[D].长春:吉林大学,2005 Zhang Q. Experimental study and finite element analysis on the frame of mining dump trucks[D]. Changchun:Jilin University, 2005(in Chinese)
[11]	Gu Z Q, Mi C J, Wang Y T, et al. A-type frame fatigue life estimation of a mining dump truck based on modal stress recovery method[J]. Engineering Failure Analysis, 2012,26:89-99
[12]	蔡进军.独立悬架总成疲劳损伤分析[D].武汉:武汉理工大学,2012 Cai J J. Fatigue damage analysis of the independent suspension assembly[D]. Wuhan:Wuhan University of Technology, 2012(in Chinese)
[13]	Kim G H, Cho K Z, Chyun I B, et al. Dynamic stress analysis of vehicle frame using a nonlinear finite element method[J]. KSME International Journal, 2003,17(10):1450-1457
[14]	黄健.基于虚拟样机技术的货车转向架疲劳寿命研究[D].成都:西南交通大学,2009 Huang J. Research on fatigue life of freight wangon bogie based on virtual prototyping[D]. Chengdu:Southwest Jiaotong University, 2009(in Chinese)