3000kW全回转拖船拖曳设备强度计算
毕业论文关键词：全回转拖船；拖曳设备；四滚轮式艉带缆桩；有限元分析；强度
Abstract Along with our country drag increase in the number and variety of objects and ships to tug towing capacity requirements also gradually improve，the tug in improving towed ability at the same time to ensure in the operation of the structure strength meet the requirements. Whole slew tug the ship as a port operations，mainly used to assist large vessels towing，top on port operations and China towing operations in coastal area require highly sensitive handling and towing stability of good，strong column traction force and freedom of navigation with a certain speed，which for towing equipment strength requirements is the key. Usually towing equipment for standard parts，can meet the requirements of structural strength，so as long as the analysis of towing equipment supporting structure strength. Therefore，the whole slew tug towing equipment strength calculation is mainly calculated for the supporting part. Zhenjiang shipyard 3000kW whole slew tug as the research object，by China Classification Society <domestic sailing ships construction specification> (2012) as the basis，using finite element software MSC. Patran / Nastran to check the strength. The results can be for the similar ship towing equipment structure design and optimization to provide the reference. Verification results show that，the ship towed cable machine base，stern roller，shark pincers，four roll wheel stern bollards and other main towing equipment meet the strength requirements in the specification.
Keywords： Rotary tug; Towing equipment; Four wheel stern bollards；finite element analysis；strength
目录
第1章绪论1
1.1全回转拖船简介.1
1.2全回转拖船拖曳设备简介.4
1.3本文主要研究内容.5
第2章船舶结构强度有限元分析综述6
2.1船舶结构强度有限元分析综述.6
2.1.1有限元分析法简述.6
2.1.2船舶结构强度领域有限元应用.7
2.2有限元分析软件简介10
2.3MSC.Patran/Nastran简介11
2.3.1MSC.Nastran简介.11
2.3.2MSC.Patran简介11
第3章3000kw全回转拖船拖曳设备有限元模型.13
3.13000kw全回转拖船主要资料.13
3.1.1评估依据13
3.1.2图纸资料13
3.2建模过程15
3.2.1模型尺寸15
3.2.2边界条件16
3.2.3计算载荷16
3.2.4工况设置18
第4章有限元强度计算.19
4.1拖缆机和鲨鱼钳强度校核19