摇臂撞击下导管架驳船结构动态响应计算研究

摘要

This paper used nonlinear finite element software ANSYS/LS-DYNA to numerically simu-rnlate the dynamic response of jacket launch barge structure under impact by rocker arm. Then it analyzed the effects of calculating time step, hull material model and hourglasses energy control, and provided the impact force to deck under impact by rocker arm and the time history curve of ship structure deformation and energy, which has reference significance to engineering application.%采用非线性有限元软件ANSYS/LS-DYNA对下水驳船摇臂对船尾结构碰撞问题的非线性动态响应进行了计算研究,对计算中遇到的计算时间步长、船体材料模型、沙漏能量控制等问题进行了详细分析,并给出了摇臂撞击甲板后的撞击力、船体结构变形及能量的时程曲线,对工程应用具有参考意义.