导管架下水系统三维模拟数学模型

摘要

The motion of a jacket platform launching system is analyzed in three-dimension and a mechanical model is established.The constraint equations of the launching system are obtained by differentiating the constrain of the system with analytic method,and the integrated mathematical model of jacket launching system's motion in wind,wave and current seas environment is established,which makes the analysis of the launching parameters more precise and the simulation more agreeable with the real system. After establishing the mathematical model, the solution method of the model is given.%分析导管架下水系统(导管架、驳船和摇臂)的三维运动,建立系统的三维力学模型,并用解析的方法通过对约束求导数给出系统的约束方程,得到导管架下水系统的完整的数学模型,使导管架下水参数计算更精确,模拟更真实.对数学模型进行分析,给出了模型的求解方法:将非线性方程组重新组合成多个线性方程组,用迭代方法和预估-校正方法相结合求解方程.