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Nonlinear dynamic analysis of deepwater steel catenary riser in-line vibration
Author(s): 
Pages: 127-135
Year: Issue:  1
Journal: Journal of Ship Mechanics

Abstract: 深水钢悬链线立管在外部流体作用下的动力响应在立管的性能优化设计中是非常重要的.文章考虑了深水钢悬链线立管轴向大应变的特性以及弯曲刚度和内流的影响,利用Hamilton原理和拉格朗日应变理论建立了立管的二维动力学模型.将外部流体的非线性作用力用Morison方程表示,通过Hermite插值函数对动力学方程进行离散,采用平均加速度法求解立管的动力响应.探讨了外部流体的非线性作用力对海洋立管顺流向动力响...
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