风缸吊带振动疲劳强度研究
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摘要
对机械工程中常用的疲劳分析方法进行了总结对比,主要包括名义应力法、局部应力应变法。结合有限元分析,给出了疲劳强度校核的一般性步骤。并以轨道车辆下吊设备风缸的吊带为例,通过有限元建模、应力计算、疲劳分析,详细阐释了轨道车辆下吊设备的疲劳强度校核过程。对产品结构设计提供疲劳校验的参考方案。
In this paper,the fatigue analysis methods used in mechanical engineering are summarized and compared,including nominal stress method and local stress strain method.Combined with the finite element analysis,the general steps of checking fatigue strength are given.With the example of the sling of the wind turbine under the rail vehicle,the fatigue strength checking process of the railway equipment is explained in detail through the finite element modeling,stress calculation and fatigue analysis.A reference scheme for fatigue verification of product structure design.
In this paper,the fatigue analysis methods used in mechanical engineering are summarized and compared,including nominal stress method and local stress strain method.Combined with the finite element analysis,the general steps of checking fatigue strength are given.With the example of the sling of the wind turbine under the rail vehicle,the fatigue strength checking process of the railway equipment is explained in detail through the finite element modeling,stress calculation and fatigue analysis.A reference scheme for fatigue verification of product structure design.
引文
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[8]李国顺,储高峰,张义超.基于计算载荷谱的车下设备安装箱体疲劳寿命仿真分析[J].铁道机车车辆,2013,33(1):8-13.
[9]周劲松.铁道车辆振动与控制[M].北京:中国铁道出版社,2012.
[2]叶晓琰,许国乐,蒋小平.基于MSC有限元分析的五缸往复泵曲轴疲劳强度校核[J].流体机械,2008,36(10):50-53.
[3]管鹏.铁道车辆设备随机振动疲劳寿命分析[D].成都:西南交通大学,2012.
[4]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.
[5]BS7608BS Code of practice for fatigue design and assessment of steel structures[S].British Standards Institution,1993.
[6]王明珠.结构振动疲劳寿命分析方法研究[D].成都:南京航空航天大学,2009.
[7]张春玉,刘春艳,王科飞.轨道车辆车下设备冲击与振动疲劳分析[J].科技展望,2015(5):141.
[8]李国顺,储高峰,张义超.基于计算载荷谱的车下设备安装箱体疲劳寿命仿真分析[J].铁道机车车辆,2013,33(1):8-13.
[9]周劲松.铁道车辆振动与控制[M].北京:中国铁道出版社,2012.