船体结构-8-首尾结构.pdf

1 © 2011 DLOU Ocean Engineering HULL STRUCTURE — BOW AND STERN CONSTRUCTION LecturerLecturer：：WeiyingWeiying ZhangZhang Mobile: Mobile: 1360426115813604261158 Email: Email: zwy@ zwy@ WechatWechat：： WhayinWhayin : : 305772007305772007 2016.4.132016.4.13 Dalian Ocean University © 2011 DLOU Ocean Engineering BOW AND STERN STRUCTURESBOW AND STERN STRUCTURES We are focusing on the following in the lecture: 1. INTRODUCTION 2. BOW CONSTRUCTION 3. STERN CONSTRUCTION 4. PROPELLER SHAFT STRUT (尾轴架结构尾轴架结构) 2 Dalian Ocean University © 2011 DLOU Ocean Engineering 3 We will achieve the following objectives  ContentsContents：：  能正确描述船首形状，受力能正确描述船首形状，受力 特点，结构加强措施，船首特点，结构加强措施，船首 结构形式及首柱形式；结构形式及首柱形式；  能正确描述船尾形状，受力能正确描述船尾形状，受力 特点，结构加强措施，船尾特点，结构加强措施，船尾 结构形式及尾柱形式；结构形式及尾柱形式；  能简单叙述尾轴架和轴包套能简单叙述尾轴架和轴包套 结构。

结构  Ability Objectives:Ability Objectives:  能根据首尾形状确定适用能根据首尾形状确定适用 船舶类型；船舶类型；  能确定首尾结构的基本组能确定首尾结构的基本组 成，所用构件名称及布置成，所用构件名称及布置 要求；要求；  了解尾轴架的应用场合及了解尾轴架的应用场合及 轴包套的作用轴包套的作用 Dalian Ocean University © 2011 DLOU Ocean Engineering Bow（（where is it ?) (船艏位置）船艏位置） T The bow is the part of ship between the stem and the collision bulkhead . (即首尖舱区域，防撞舱壁以前的结构即首尖舱区域，防撞舱壁以前的结构) ) Bow components： stem(艏柱)、bottom(船底)、side(舷侧)、deck(甲板)、forepeak tank bulkhead(艏尖舱舱壁) et al Forepeak tank Functions（艏尖舱作用）（艏尖舱作用）:  Ballast tank, to adjust trimmingBallast tank, to adjust trimming（压载舱）（压载舱）  Chain lockerChain locker（锚链舱）（锚链舱）  Room for general tools and equipmentsRoom for general tools and equipments（工具舱）（工具舱） 4 Introduction Dalian Ocean University © 2011 DLOU Ocean Engineering Stern（船艉位置）（船艉位置）  The part after aft peak tank and below the strength The part after aft peak tank and below the strength deck(deck(尾尖舱舱壁之后，强力甲板以下的结构，为全船结构尾尖舱舱壁之后，强力甲板以下的结构，为全船结构 的尾端形状的尾端形状) )。

Bow components：：  stern frame(艉柱艉柱)、、bottom、、sides、、main deck、、bulkhead of stern transom plate(尾封板尾封板)，，propeller shaft and rudder post et al. Functions of aft peak tank（艉尖舱功能）（艉尖舱功能） Ballast water to adjust trimmingBallast water to adjust trimming there are steering gear room upward the aft peak tankthere are steering gear room upward the aft peak tank 5 Introduction Dalian Ocean University © 2011 DLOU Ocean Engineering Introduction Characteristics of bow and stern shapes:Characteristics of bow and stern shapes:  Hull shape gradually become more and more fine at Hull shape gradually become more and more fine at the end(the end(通常船体外形向首尾端部逐渐地变得愈来愈尖瘦，通常船体外形向首尾端部逐渐地变得愈来愈尖瘦， 最后并拢于首尾柱最后并拢于首尾柱) )。

 stem and stern frame stem and stern frame contourescontoures change sharply and change sharply and the stresses is different from the amidships section(the stresses is different from the amidships section(线型线型 变化较大，受力也与船体中部大不相同变化较大，受力也与船体中部大不相同) )  TranasverseTranasverse framing systems are used at bow and framing systems are used at bow and stern parts and need strengthening(stern parts and need strengthening(艏艉结构通常采用艏艉结构通常采用 横骨架式，通常需要特别加强横骨架式，通常需要特别加强) ) 6 2 Dalian Ocean University © 2011 DLOU Ocean Engineering 7 首尾部及形状及位置首尾部及形状及位置 Introduction Dalian Ocean University © 2011 DLOU Ocean Engineering BOW AND STERN STRUCTURESBOW AND STERN STRUCTURES 1. INTRODUCTION 2. BOW CONSTRUCTION 3. STERN CONSTRUCTION 4. PROPELLER SHAFT STRUT (尾轴架结构尾轴架结构) 8 Dalian Ocean University © 2011 DLOU Ocean Engineering Bow construction 9 Dalian Ocean University © 2011 DLOU Ocean Engineering 10 Bow constructionBow construction  Bow construction: Including all the framings forward of the forepeak bulkhead. such as stem(艏柱)，bottom(船底)，ship side(舷侧)，forecastle deck(艏楼 甲板)，collision bulkhead(艏尖 舱舱壁) and the all the frames et al.  Stem post（艏柱）：（艏柱）：船首最前 端连接两侧外板和龙骨的结构 。

Dalian Ocean University © 2011 DLOU Ocean Engineering Stem post（艏柱）（艏柱） 11 Dalian Ocean University © 2011 DLOU Ocean Engineering 13 Bow constructionBow construction———— shapes of stem(shapes of stem(船首形状船首形状) ) There are 5 types of the bow：： 直立型首（直立型首（VeticalVetical bowbow）） 前倾型首前倾型首(Raked stem)(Raked stem) 飞剪型首飞剪型首(Clipper stem)(Clipper stem) 破冰型首破冰型首(Icebreaker Bow)(Icebreaker Bow) 球鼻型首球鼻型首(Bulk bow)(Bulk bow) 3 Dalian Ocean University © 2011 DLOU Ocean Engineering 14 船首呈直线型，船首呈直线型， 与基线垂直，与基线垂直，结结 构简单，首部甲构简单，首部甲 板面积小。

板面积小驳船驳船 与特种船舶与特种船舶 Bow constructionBow construction———— shapes of stem(shapes of stem(船首形状船首形状) ) vertical bowvertical bow racked stemracked stem clipper stemclipper stem icebreaker bowicebreaker bow bulb bowbulb bow Bow types and characteristics：： Dalian Ocean University © 2011 DLOU Ocean Engineering 15 首部倾斜约25 ～30， 外观美观、简洁，有外观美观、简洁，有 快速感甲板面积大、快速感甲板面积大、 不宜上浪，发生碰撞不宜上浪，发生碰撞 时，船体水线以下的时，船体水线以下的 部分不易受损，部分不易受损，军用军用 船多采用直线前倾型船多采用直线前倾型 Bow constructionBow construction———— shapes of stem(shapes of stem(船首形状船首形状) ) vertical bowvertical bow racked stemracked stem clipper stemclipper stem icebreaker bowicebreaker bow bulk bowbulk bow Bow types and characteristics：： Dalian Ocean University © 2011 DLOU Ocean Engineering 16 vertical bowvertic。