内河多工况船机桨匹配优化设计  

Optimal design of ship-engine-propeller matching for inland ships under multiple operation conditions

作　　者：孙林 陈辉[1,2] 管聪[1,2] SUN Lin;CHEN Hui;GUAN Cong(School of Energy and Power Engineering,Wuhan University of Technology,Wuhan 430063,China;Key Laboratory of High Performance Ship Technology of Ministry of Education,Wuhan University of Technology,Wuhan 430063,China)

机构地区：[1]武汉理工大学能源与动力工程学院,湖北武汉430063 [2]武汉理工大学高性能舰船技术教育部重点实验室,湖北武汉430063

出　　处：《中国舰船研究》2022年第1期187-195,共9页Chinese Journal of Ship Research

基　　金：国家自然科学基金资助项目(51909200);绿色智能内河船舶创新专项资助(工业和信息化部[2019]358号)。

摘　　要：[目的]内河船舶在航行时存在顺水、逆水和急流等多种工况,传统的内河船舶船-机-桨匹配设计方法仅对船舶在逆水上行时进行了匹配设计,而在顺水下行工况,因船舶推进效率低、主机利用率低,造成油耗成本高、经济性较差等,因此需进行多工况内河船舶船-机-桨匹配优化设计。[方法]首先,在不同工况下对内河船舶推进系统的各参数进行设计,并将结果进行对比得出各设计参数对整体推进系统的影响;然后,对船舶推进系统的设计过程进行分析,以航行成本和推进系统效率为目标函数,以螺旋桨设计参数、主机功率、船舶上水航速和下水航速为变量,建立数学模型;最后,应用NSGA-Ⅱ算法进行多目标优化,得到兼顾经济性和推进效率的船舶主机功率和推进系统设计参数。[结果]结果显示,使用所提方法得到的设计参数能够更好地适配内河的通航环境,船舶的经济性更高。[结论]研究成果可为内河船舶推进系统的选型与匹配优化提供设计工具,从而为船舶的实际运行提供理论依据。[Objective]There are multiple operation conditions for ships navigation in inland river waterway,such as sailing downstream,upstream as well as in rapid stream,but the traditional ship-engine-propeller matching method can only ensure that the inland ships meet the design requirements when they travels upstream.Under downstream conditions,the ship propulsion’s efficiency and energy utilization rate of main engine are both low,resulting in high fuel consumption and less cost-effectivness.To this end,the optimal design of ship-engine-propeller matching for the inland ships under multiple conditions is carried out.[Methods]First,the parameters of an inland ship’s propulsion system under various conditions are designed,and the results are compared to ascertain the influence of each design parameter on the overall propulsion system.Then,the design process of the propulsion system is analyzed,and a mathematical model is established with navigation cost and propulsion system efficiency as the objective functions,and the design parameters of the propeller,main engine power and ship speeds(upstream&downstream)as variables.Finally,the main engine power and design parameters of propulsion system are determined balancing both economy and efficiency using the NSGA-II algorithm.[Results]The design parameters obtained using this method are easily adapted to the traffic environment of inland ships,making them more economical.[Conclusion]The results of this study can not only provide design tools for the selection of ship propulsion systems,but also provide a theoretical basis for its practical application.

关 键 词：船舶推进系统 船-机-桨匹配 NSGA-Ⅱ 多目标优化 

分 类 号：U664.33[交通运输工程—船舶及航道工程]