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具有内核伸出段的套管构件点接触力学模型研究

赵啸峰 申波 马克俭 刘盼盼 王惠 吴骏杨 杨磊

赵啸峰, 申波, 马克俭, 刘盼盼, 王惠, 吴骏杨, 杨磊. 具有内核伸出段的套管构件点接触力学模型研究[J]. 应用数学和力学, 2018, 39(9): 1009-1020. doi: 10.21656/1000-0887.380288
引用本文: 赵啸峰, 申波, 马克俭, 刘盼盼, 王惠, 吴骏杨, 杨磊. 具有内核伸出段的套管构件点接触力学模型研究[J]. 应用数学和力学, 2018, 39(9): 1009-1020. doi: 10.21656/1000-0887.380288
ZHAO Xiaofeng, SHEN Bo, MA Kejian, LIU Panpan, WANG Hui, WU Junyang, YANG Lei. Mechanical Model Research on Point Contact Between the Sleeve and the Inner Core With Over-Hang Lengths for Sleeved Columns[J]. Applied Mathematics and Mechanics, 2018, 39(9): 1009-1020. doi: 10.21656/1000-0887.380288
Citation: ZHAO Xiaofeng, SHEN Bo, MA Kejian, LIU Panpan, WANG Hui, WU Junyang, YANG Lei. Mechanical Model Research on Point Contact Between the Sleeve and the Inner Core With Over-Hang Lengths for Sleeved Columns[J]. Applied Mathematics and Mechanics, 2018, 39(9): 1009-1020. doi: 10.21656/1000-0887.380288

具有内核伸出段的套管构件点接触力学模型研究

doi: 10.21656/1000-0887.380288
基金项目: 国家自然科学基金(51468007);贵州省优秀科技教育人才省长专项资金(黔省专合字(2012)67号)
详细信息
    作者简介:

    赵啸峰(1993—),男,硕士生(E-mail: xfzhao0923@163.com);申波(1970—),男,教授,博士,硕士生导师(通讯作者. E-mail: gy_shenbo@sohu.com).

  • 中图分类号: TU311.4;TU398

Mechanical Model Research on Point Contact Between the Sleeve and the Inner Core With Over-Hang Lengths for Sleeved Columns

Funds: The National Natural Science Foundation of China(51468007)
  • 摘要: 针对轴向压力作用下具有内核伸出段的套管构件,理论研究了初弯曲内核与柔性套筒的点接触变形过程.采用小挠度二阶平衡微分方程,推导了内核处于点接触状态时套管构件的挠度、剪力、弯矩、接触力等物理量的计算公式.理论的对比结果表明:1)内核伸出段会显著增大套管构件的弯曲轴向位移,降低套管构件的非线性轴向刚度;2)内核伸出段使内核与套筒端部的接触反力有显著的增加,随着轴向压力的增大,该接触反力的增加更大;3)内核伸出段使内核的剪力、弯矩均有显著的提高,尤其在内核与套筒抗弯刚度比值较大时,弯矩的提高更显著.该文的研究可为套管构件及内核与套筒端部连接的设计提供依据.
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出版历程
  • 收稿日期:  2017-11-16
  • 修回日期:  2017-12-27
  • 刊出日期:  2018-09-15

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