应用数学和力学2026，Vol.47Issue(3)：263-272,10.DOI:10.21656/1000-0887.460098
气液两相流下L型管道非线性动力学与抑振设计研究
Nonlinear Dynamics and Vibration Suppression of L-Shaped Pipes Conveying 2-Phase Flow
摘要
Abstract
Based on the Euler-Lagrange equations,the absolute nodal coordinate formulation(ANCF)was em-ployed to establish a nonlinear dynamic model for cantilevered L-shaped pipes conveying 2-phase flow.The characteristics of uniformly bubbly 2-phase flow were considered.Firstly,the static deformation results from the theoretical model were compared and validated against the finite element method(FEM),and the effects of the gas volume fraction on pipe static deformation and stability were analyzed.Then,the nonlinear dynamic be-haviors of the pipe were studied for different void fractions,with a focus on the effects of void fractions on bi-furcation characteristics.Finally,an optimal support design is proposed to suppress pipe vibrations,and mini-mize both the displacement and strain amplitudes of the L-shaped pipe.关键词
两相流/空泡份额/L型悬臂管道/最优支承位置Key words
2-phase flow/void fraction/L-shaped cantilever pipe/optimal support position分类
数理科学引用本文复制引用
贾程,邢浩然,王强,杨宝山,马越,李民强,刘胡杨,王磊恒,代胡亮..气液两相流下L型管道非线性动力学与抑振设计研究[J].应用数学和力学,2026,47(3):263-272,10.基金项目
国家自然科学基金(12272140 （）
12322201) （）
