异径弯管在扭矩作用下的应力及极限扭矩验证

陈孙艺

陈孙艺. 异径弯管在扭矩作用下的应力及极限扭矩验证[J]. 工程力学, 2013, 30(增刊): 347-352. DOI: 10.6052/j.issn.1000-4750.2012.04.S030
引用本文: 陈孙艺. 异径弯管在扭矩作用下的应力及极限扭矩验证[J]. 工程力学, 2013, 30(增刊): 347-352. DOI: 10.6052/j.issn.1000-4750.2012.04.S030
shu
CHEN Sun-yi. TESTING OF STRESSES AND LIMIT TWISTING MOMENTS OF REDUCING ELBOWS SUBJECT TO TWISTING MOMENTS[J]. Engineering Mechanics, 2013, 30(增刊): 347-352. DOI: 10.6052/j.issn.1000-4750.2012.04.S030
Citation: CHEN Sun-yi. TESTING OF STRESSES AND LIMIT TWISTING MOMENTS OF REDUCING ELBOWS SUBJECT TO TWISTING MOMENTS[J]. Engineering Mechanics, 2013, 30(增刊): 347-352. DOI: 10.6052/j.issn.1000-4750.2012.04.S030
shu

异径弯管在扭矩作用下的应力及极限扭矩验证

  • 茂名重力石化机械制造有限公司，广东茂名525024

详细信息
    作者简介:

    陈孙艺(1965－)，男，广东化州人，教授级高工，工学博士，主要从事承压设备工程研究(E-mail:sunyi_chen@sohu.com)

    通讯作者:

    陈孙艺(1965-)，男，广东化州人，教授级高工，工学博士，主要从事承压设备工程研究(E-mail:sunyi_chen@sohu.com).

TESTING OF STRESSES AND LIMIT TWISTING MOMENTS OF REDUCING ELBOWS SUBJECT TO TWISTING MOMENTS

  • The Challenge Petrochemical Machinery Corporation of Maoming,Maoming,Guangdong 525024,China

摘要

    摘要
  • 摘要: 通过有限元分析和实验对异径弯管在扭矩作用下的弹性应力及极限扭矩解析解进行了验证。有限元分析表明，端面扭矩在异径弯管中的作用一定程度上类似面内弯矩在异径弯管中的作用，证实了扭矩在弯管中传递过程的弯矩化效应。小端受扭的有限元分析表明，最大环向应力位于异径弯管模型小端的外拱处，误差不超过5%，与解析解的结论一致，但解析解略偏危险。大端受扭的实验表明，小端的应力水平高于大端，但极限扭矩解析解较大多数实测的结果明显偏保守。
    Abstract: The formula solutions of elastic stresses and the limit torque of reducing elbows subject to twisting moments were validated according limit element analysis (LMA) and testing. The results of LMA shows that the effect of twisting moment on the end of reducing elbows is just similar to that of reducing elbows subject to in-plane close-bending moments. The effect of a twisting moment turns to be a bending moment during transferring along a bend pipe was validated gradually. The results of LMA with a smaller end subject to a twisting moment are show that the most stresses lie on outside the arch of the smaller end of reducing elbows, and the error is not overrun with 5 percent. It is mean that the testing result is consistent with formula solutions but it is a little dangerous. The testing results of a larger end subject to a twisting moment show that the stress level of a smaller end is higher than that of the larger end of reducing elbows. The formula solutions of limit torques are safety than that of most testing results clearly.
    • HTML全文
    • 参考文献(10)
  • [1] 陈孙艺). 异径管特点的研究及其设计选用[J]. (石油化工设计), 2005,22(3):52―54. Chen Sunyi. Study on the characteristics of reducer and its selection in engineering[J]. Petrochemical Design,2005,22(3): 52―54. (in Chinese
    [2] 潘家华),(郭光臣),等 油罐及管道强度设计[M]. 北京: 石油工业出版社, 1986: 238―246. Pan Jiahua, GuoGuangchen, et al. Strength design of oil tank and pipeline [M]. Beijing: Petroleum Industry Publishing Company, 1986: 238―246. (in Chinese
    [3] [苏]阿英宾杰尔А Б,卡麦尔什捷英А Г著 干线管道强度及稳定性计算[M]. 北京: 石油工业出版社, 1986: 368―370. [Russia]А.Б.Аинбиндер, А.Г.Камерштеин. Calculation of trunk-line strength and stability [M]. Beijing: Petroleum Industry Press, 1986: 368―370. (in Chinese
    [4] Yahiaoui K,Moffat D G,Moreton D N Piping elbows with cracks.Part 1:A parametric study of the influence of crack size on limit loads due to pressure and opening bending [J]. J. Strain Analysiis,2000, 35(1): 35―46.
    [5] 陈孙艺),(柳曾典). 异径弯管的无力矩经向应力解析解[J]. (塑性工程学报), 2005,12(2):48―51. Chen Sunyi, Liu Cengdian. Meridian membrane stress of bend reducer[J]. Journal of Plasticity Engineering,2005,12(2): 48―51. (in Chinese
    [6] 陈孙艺). 弯管在面内开弯矩作用下的弹性应力解析解[J]. (工程力学), 2010,27(增刊Ⅱ):163―166. Chen Sunyi. Elastic stresses for pipe elbows subjected to in-plane open-bending moments [J]. Engineering Mechanics,2010,27(SupplⅡ): 163―166. (in Chinese
    [7] 陈孙艺),(柳曾典),(陈进),(何录武) 异径弯管在面内闭弯矩作用下的弹性应力及极限闭弯矩解析解[C]//压力管道技术研究进展精选集. 北京: 化学工业出版社, 2010: 37―41. Chen Sunyi, Liu Cengdian, Chen Jin, He Luwu. Elastic stresses and limit close-bending moments of reducing bends subject to in-plane close-bending moments[C]//Omnibus of Technology Study Development on Pressure Piping, Beijing: Chemical Industry Publishing House, 2010: 37―41. (in Chinese
    [8] 陈孙艺). 偏心异径管在扭矩作用下的弹性应力及极限扭矩解析解[C]//第19届全国结构工程学术会议论文集. 北京: 工程力学杂志社, 2011(I):255―258. Chen Sunyi. Elastic stresses and limit twisting moments of eccentric reducers subject to twisting moments [C]// Proceedings of the 19th National Conference on Structural Engineering (No. I), Beijing: Engineering Mechanics Publishing House, 2011I): 255―258. (in Chinese
    [9] Chen Sunyi,Liu Cengdian,Chen Jin,He Luwu Elastic stresses and limit twisting moments of reducing elbows subject to twisting moments [C]// Proceedings of the 12th International Conference on Pressure Vessel Technology. Korea,2009, SA4-3: 538―543.
    [10] 陈孙艺) 屈服极限和流变应力以及塑性极限载荷的确定方法综述[C]//压力管道技术研究进展精选集. 北京: 机械工业出版社, 2006: 60―66. Chen Sunyi. Method summarize to obtain the yield limit and the flow stress and the plastic limit load of structure [C]//Omnibus of Technology Study Development on Pressure Piping, Beijing: Machine Industry Publishing House, 2006: 60―66. (in Chinese
    • 相关文章
    • 施引文献
    • 资源附件(0)
计量
  • 文章访问数:  277
  • HTML全文浏览量:  18
  • PDF下载量:  203
  • 被引次数: 0
出版历程
  • 收稿日期:  2013-06-30
  • 修回日期:  2013-06-30
  • 刊出日期:  2013-06-24

目录

摘要
HTML全文
    参考文献(10)
    相关文章
    施引文献
    资源附件(0)

    /

    返回文章
    返回

    京ICP备18030614号

    版权所有 © 《工程力学》编辑部

    地址：北京清华大学新水利馆114室邮政编码：100084

    电话：(010)62788648传真：021-64253812电子信箱：gclxbjb@tsinghua.edu.cn

    本系统由北京仁和汇智信息技术有限公司开发  百度统计