摘要现代船舶大多选用混合燃油作为燃料,这种燃料不可再生并且所产生的污染也特别严重。选取绿色可替代资源成为当下研究的热门,本次课题正是为某风帆助航散货船进行稳性计算方法的研究。本次课题研究内容包括:1)为某散货船设计合理的风帆。风帆设计包括选取改进型翼型帆,设计风帆的尺寸大小、安装位置和计算其重量重心位置。2)利用Maxsurf软件对主船体进行建模,并分析其在特定吃水情况下的排水量以验证模型的准确性,最后利用Hydromax对静稳性曲线进行计算。3)计算船舶在安装风帆后,在满载出港状态下的稳性衡准数K,校核船舶的完整稳性;并采用不同方式处理风压倾侧力矩来研究风帆助推船稳性计算方法。最后结果表明:散货船船安装风帆后船舶重心提高、吃水也有小幅度的改变、受风面积大幅增加,但该船的稳性仍满足相关法规的要求。
毕业论文关键词:风帆助推;风帆设计;稳性
Abstract Modern ships mostly chose mixed fuel as fuel,this kind of fuel is not renewable and its pollution is particularly serious。 The selection of green alternative resources has become a hot topic of current research。This project is for the stability calculation of a sail-assited bulk carrier。The research contents include:1)Design a reasonable sail for a bulk ship。For designing the sail,we need to select improved aerofoil sails;design the size dimensions of sails and design the installation position of the sail and calculate its weight center of gravity position。2)The main hull is modeled by Maxsurf software, and the displacement of the ship under specific draft is analyzed to verify the rationality of the design。 Finally, the static stability curve is analyzed by using Hydromax software。3)In the calculation of ship installation sails, stability criteria in the full state of the port number K, the complete stability check of the ship; and to adopt different ways to study the sailing ship stability calculation with wind heeling moment。Finally, the results show that the ship's center of gravity increases, the draft changes slightly, and the wind area increases greatly, but the stability of the ship still meets the requirements of the relevant laws and regulations。
Keywords:sail-assited;sail design;stability
目录
第一章绪论 1
1。1选题原因 1
1。1。1选题背景 1
1。1。2经济效益及应用前景考量 1
1。2。1国内研究现状 2
1。2。2国内研究现状 6
1。3存在的问题 7
1。4本课题研究内容 8
第二章机翼理论及风帆的设计 8
2。1机翼理论 8
2。1。1风帆空气动力学原理 8
2。2风帆翼型 9
2。3散货船资料 10
2。3。1主尺度 10
2。3。2总布置资料 11
2。4风帆设计 11
2。4。1风帆的尺寸 11
2。4。2桅杆的材料选取和尺寸 12
2。4。3桅杆和风帆的重量重心高度 13
2。5本章小结