摘要
为保证浮箱载船下水安全,在分析浮箱载船下水力学模型的基础上,基于矩阵位移法对浮箱载船下水进行分析。利用VB编制浮箱载船下水程序,实现下水过程中浮箱吃水、弯矩、剪力、支墩反力的快速计算,与有限元软件MSC.Nastran计算结果进行对比分析。结果表明浮箱载船下水程序可以准确有效地计算下水过程中浮箱吃水、弯矩、剪力和支墩反力。
The mechanical model of ship launching by pontoon was analyzed.The main parameters of ship launching by pontoon was calculated quickly based on matrix displacement method by a VB program,including the draft,bending moment and shearing force of pontoon and the reaction force of block.The results of program were contrasted with that of FEA by MSC.Nastran,showing that the program for ship launching by pontoon can accurately and efficiently calculate the draft,bending moment and shearing force of pontoon and the reaction force of block.
出处
《船海工程》
2010年第5期65-68,共4页
Ship & Ocean Engineering
关键词
船舶下水
浮箱
矩阵位移法
程序设计
有限元法
ship launching
pontoon
matrix displacement method
program design
finite element method
