Launch barge is an effective tool for transporting ship segments from one place to another in shipyards. During shifting of segments onto a barge, the slideway on the barge＇s deck must be adjusted to maintain the same level as the wharf and also the barge must be kept level by adjusting the water in the ballast tanks. When to open the adjusting valves is an important factor influencing the barge＇s trim during the water-adjustment process. Because these adjustments are complex a mathematical model was formulated,after analyzing the characteristics of the process of moving the segments onto the barges deck, and considering the effects of this movement＇s speed and variations in tidal levels during the move. Then the model was solved by the penalty function method, the grid method, and improved simulated annealing, respectively. The best optimization model and its corresponding solution were then determined. Finally, it was proven that the model and the method adopted are correct and suitable, by calculating and analysing an example.
探讨优化方法在浮船坞浮态实时调节中的应用.结合工程实际问题,依据静力学力平衡原理,以实际工程需要为目标,以各调节水舱实时水位为自变量,建立浮船坞实时配载优化模型.针对该模型,采用惩罚函数法求解,求解过程中运用了Pow e ll直接搜索法和成功-失败法.计算结果表明,算法中搜索起点的改变会对调水方案有所影响,但最优目标值非常接近.同时,该方法简便可行,可显著提高工作效率.特别是,该方法可以方便地考虑潮水水位变化对浮船坞浮态调节的影响,更适于实际应用.
