考虑不规则风浪影响的最小油耗航速模型

发布时间：2018-06-03 19:51

本文选题：不规则风浪 + 油耗模型　；参考：《上海海事大学学报》2016年01期

【摘要】：为提高单船营运能效,提出一种考虑不规则风浪影响的最小油耗航速定量计算模型.首先进行航段划分,获取海况数据;然后通过增加航行功率修正船舶失速的方法,构建考虑风浪影响的单位时间油耗模型;最后以每航段航速为决策变量,建立最小油耗航速非线性优化模型.考虑到实船应用中最小油耗航速优化算法需具有快速寻找全局最优解的特点,设计初始值算法.以实船某航次运营为例进行了油耗及最小油耗航速计算,结果显示:每海里油耗模型理论值与实测值相对误差在可接受范围内;与不考虑不规则风浪影响的计算模型(平均航速)相比较,采用这种方法计算出的油耗减少了1%,节能效果初见成效.
[Abstract]:In order to improve the efficiency of single ship operation, a quantitative calculation model of minimum fuel consumption is proposed, which takes into account the influence of irregular wind and waves. First, the section is divided to obtain the sea condition data; then, by increasing the navigation power to correct the stall of the ship, the unit time fuel consumption model considering the influence of wind and wave is constructed. Finally, the speed of each section is taken as the decision variable. A nonlinear optimization model of minimum fuel consumption is established. Considering the need of finding the global optimal solution quickly for the optimal algorithm of minimum fuel consumption in the application of real ships, the initial value algorithm is designed. The calculation of fuel consumption and minimum fuel consumption speed is carried out by taking the operation of a ship as an example. The results show that the relative error between the theoretical value and the measured value of the oil consumption model per nautical mile is within the acceptable range; Compared with the model (average speed) which does not take into account the influence of irregular wind and waves, the fuel consumption calculated by this method has been reduced by 1%, and the effect of energy saving has been achieved.
【作者单位】：上海船舶运输科学研究所运输系统事业部;
【基金】：科研院所技术开发研究专项资金(2012EG124041)
【分类号】：U676.3

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