哈尔滨工程大学学报2026，Vol.47Issue(8)：1627-1637,11.DOI:10.11990/jheu.202506054
拉伸-扭转载荷下非黏结柔性管层间作用分析
Analysis of interlayer interaction for unbonded flexible pipes under tensile-torsional loads
摘要
Abstract
Considering the unbonded structural feature of flexible risers,interlayer interaction and bearing charac-teristics are investigated under tensile-torsional combined loads.Analytical and numerical models are established for the axisymmetric response of unbonded flexible risers.Loading responses and interlayer contact stresses under tension,clockwise torsion and counterclockwise torsion are compared,verifying the validity of the models.For tension-counterclockwise torsion coupling,the interlayer contact area gradually increases to full contact with rising tensile load,leading to distinct nonlinearity in the effect of tension on counterclockwise torsional stiffness.For tension-clockwise torsion coupling,tensile load and clockwise torque should be limited within a reasonable range to maintain continuous contact between the outer tensile armor layer and the second anti-wear tape,thereby prevent-ing radial buckling.关键词
非黏结柔性立管/拉伸-扭转载荷/层间相互作用/接触应力/组合载荷/扭转刚度/抗拉铠装层/有限元模型Key words
unbonded flexible riser/tensile-torsional loads/interlayer interaction/contact stress/combined load-ing/torsional stiffness/tensile armor layer/finite element model分类
海洋科学引用本文复制引用
雷清龙,侯植,祝效华,陈晨阳,马鹏..拉伸-扭转载荷下非黏结柔性管层间作用分析[J].哈尔滨工程大学学报,2026,47(8):1627-1637,11.基金项目
国家自然科学基金青年基金项目(52404007) （52404007）
西南石油大学自然科学启航计划(2022QHZ002). （2022QHZ002）
