热-机循环载荷作用下裙座结构的棘轮和疲劳评定
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摘要
基于给定的热-机循环载荷,对裙座结构进行了热应力分析。采用弹性核判据和弹-塑性应力分析对结构进行了棘轮评定,采用最大-最小循环计数法和弹性应力分析对结构进行了疲劳评定。为裙座结构防止复杂循环载荷引起的失效提供一定参考。
The thermal stress of skirt structure was analyzed based on cyclic thermal-mechanical loading.The ratcheting failure was assessed through elastic core criteria and elastic-plastic stress analysis,the fatigue failure was assessed through max-min cycle counting method and elastic stress analysis.It can provide reference for the protection of skirt structure against complex cyclic loading.
The thermal stress of skirt structure was analyzed based on cyclic thermal-mechanical loading.The ratcheting failure was assessed through elastic core criteria and elastic-plastic stress analysis,the fatigue failure was assessed through max-min cycle counting method and elastic stress analysis.It can provide reference for the protection of skirt structure against complex cyclic loading.
引文
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[2]石平非,岳国印,许洋等.高温裙座支撑设备下封头与裙座交接处的设计[J].化工设备与管道,2014,51(2):9-11.
[3]赵艳梅,郑国芬.焦炭塔裙座环缝裂因及安全分析[J].化工设备与管道,2001,38(6):71-74.
[4]崔静,高炳军,张及瑞等.加氢反应器h型锻件与裙座连接侧厚度的确定[J].压力容器,2004,21(2):23-26.
[5]谈永明,邵东亮.焦炭塔与筒体连接区域应力分析[J].化工机械,2011,38(4):457-460.
[6]殷昌创.裙座温箱结构的设计探讨[J].化工设备与管道,2015,52(3):40-42.
[7]李国成,张文,吴娜.焦炭塔热棘轮效应的安定性分析[J].化工机械,2010,37(4):444-446.
[8]曲伟强,陈旭.载荷路径对内压弯管棘轮效应的影响[J].压力容器,2016,33(10):16-23.
[9]吴娜.焦炭塔循环载荷下的疲劳分析[D].青岛:中国石油大学(华东),2009.
[10]陈钢,刘应华.结构塑性极限与安定性分析理论及工程方法[M].北京:科学出版社,2006.
[11]陆明万,寿比南,杨国义.疲劳分析中变幅载荷的循环计数方法[J].压力容器,2012,29(11):25-29.
[12]2015 ASME Boiler&Pressure Vessel CodeⅧDivision 2,Alternative Rules,Rules for Construction of Pressure Vessels[S].
[13]Porowski J S,O'Donnell W J.Elastic Core Concept in Shakedown Analysis[C]//2008 ASME Pressure Vessels and Piping Division Conference.Chicago,Illinois USA,2008.
[14]沈鋆,陈志伟,刘应华.基于弹性核评定准则的压力容器弹塑性棘轮分析[J].压力容器,2016,33(7):10-17.