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新書推薦: ![]() 《 海外中国研究·道家与中国治道(国际汉学泰斗顾立雅集大成之作,一部打破哲学迷思的中国治道探源经典。开辟 》 售價:HK$ 63.8 ![]() 《 人体雕塑解剖学 》 售價:HK$ 140.8 ![]() 《 投喂AI:人工智能产业的全球底层工人纪实 》 售價:HK$ 75.9 ![]() 《 诛仙.全6册(最新典藏版) 》 售價:HK$ 348.5 ![]() 《 怦然心动的人生整理魔法·实践解惑篇2025版 修订本 》 售價:HK$ 54.8 ![]() 《 修剪情绪藤蔓 》 售價:HK$ 76.9 ![]() 《 3秒下单文案:4步成交法则 》 售價:HK$ 65.8 ![]() 《 中式园林的秩序(文津图书奖得主朱良志教授的园林美学新作,在园林里读懂中国人的生命哲学) 》 售價:HK$ 96.8 |
| 內容簡介: |
| 船舶与海洋工程建造是个复杂的生产过程,制造(热加工)工艺伴随着船舶整个建造过程,制造(热加工)工艺力学行为引起的结构内部残余应力及变形对船舶制造质量具有重要的影响。而这些力学问题不仅与其它工程领域的力学问题不同,且与设计时考虑的力学问题也不相同,问题的性质及求解方法都有着其专业特殊性,解决这些力学问题对提高工艺水平和建造质量具有重要的意义。本书基于热弹塑性有限元分析法和固有变形理论,针对船舶与海洋工程建造过程中的热点和难点问题:弯板成型,船体构件、分段及总段焊接装配,高强度大厚度海洋平台桩腿板材切割等三个典型制造(热加工)工艺过程开展了力学行为研究,从力学的角度分析建造工艺的科学性和合理性,进而为施工工艺的改进和优化提供理论依据及数据支持。 |
| 目錄: |
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Contents
Preface Chapter 1 Introduction 1 1.1 Research Background 1 1.2 Literature and Research Progress 4 1.2.1 Steel Cutting with Flame Heating 4 1.2.2 Plate Bending with High-Frequency Induction Heating 5 1.2.3 Welding Distortion Prediction in Shipbuilding 6 1.3 Research Content 12 Reference 12 Chapter 2 Fundamentals of FE Computation 18 2.1 Non-linear Thermal Elastic-Plastic FE Computation 19 2.1.1 Transient Thermal Analysis 19 2.1.2 Mechanical Analysis 20 2.1.3 Fast Computation Techniques 20 2.2 Theory of Inherent Strain and Deformation 23 2.2.1 Inherent Strain Theory 23 2.2.2 Inherent Deformation Theory 24 2.3 Interface Element 25 2.4 Elastic Buckling Theory 27 2.4.1 Finite Strain Theory 27 2.4.2 Eigenvalue Analysis 27 2.5 Tendon Force and Its Evaluation 30 2.5.1 Tendon Force Evaluation with Theoretical Analysis 32 2.5.2 Tendon Force Evaluation by Computed Results 33 2.6 Conclusions 35 Reference 36 Chapter 3 Investigation on Thick-Plate Cutting of High-Strength Steel 38 3.1 Research on Thermal Source Model of Oxygen and Acetylene cutting 38 3.1.1 Thermal Source Model 38 3.1.2 Determination of Thermal-Flow Distribution Parameters 39 3.1.3 Quasi-stable Temperature Field Under the Effect of Thermal Sources 40 3.1.4 Determination of Parameters in Thermal Source Model 40 3.2 Simulation of Rack Oxygen-Acetylene Cutting 41 3.2.1 Material Parameters of Temperature Properties 41 3.2.2 Finite Element Model of Rack 42 3.2.3 Calculation of Stress and Strain in Thermal Rack Cutting 43 3.3 Optimization of Cutting Process Parameters 45 3.4 Conclusions 48 Reference 49 Chapter 4 Hull Plate Bending with Induction Heating 50 4.1 Experimental Procedure and Measurement 50 4.1.1 Temperature Measurement During Induction Heating 51 4.1.2 Measurement of Bending Deformation 54 4.2 Measurement and Computational Analysis of Saddle Plate 56 4.2.1 Thermal Elastic-Plastic FE Computation 59 4.2.2 Evaluation of Bending Moment 61 4.2.3 Elastic FE Computation 62 4.3 Measurement and Computational Analysis of Sail Plate 64 4.3.1 TEP FE Analysis for Sail-Shape Plate 65 4.3.2 Elastic FE Analysis for Sail-Shape Plate 68 4.4 Conclusions 70 Reference 71 Chapter 5 Out-of-plane Welding Distortion Prediction for Typical Welded Joints and Ship Structures 72 5.1 Welding Distortion of Typical Fillet Welding 73 5.1.1 Experimental Procedure and Measurement 73 5.1.2 Thermal Elastic-Plastic FE Analysis 75 5.1.3 FE Computation on Influence of Lateral Stiffener 77 5.1.4 Inherent Deformation Evaluation 80 5.2 Welding Distortion of Stiffened Welded Structure 83 5.2.1 Fabrication of Orthogonal Stiffened Welded Structure 84 5.2.2 Elastic FE Analysis with Shell-Element Model 85 5.3 Conclusions 92 Reference 93 Chapter 6 Application of Computational Welding Mechanics for Accurate Fabrication of Ship Structure 94 6.1 Welding Distortion Reduction for Hatch Coaming Production 94 6.1.1 Experimental Procedure 97 6.1.2 Evaluation of Inherent Deformation of Fillet Welded Joints 99 6.1.3 Prediction of Welding Distortion of Hatch Coaming Using Elastic FE Analysis 102 6.2 Investigation on Welding Induced Buckling for Ship Panel Fabrication 104 6.2.1 Experimental Procedures and Measurement 104 6.2.2 Thermal Elastic-Plastic FE Computation of Fillet Welding 105 6.2.3 Evaluation of Welding Inherent Deformations 115 6.2.4 Elastic FE Analysis with Inherent Deformations 120 6.2.5 Techniques for Welding Buckling Prevention 126 6.3 Application of Accurate Fabrication for Container Ship 132 6.3.1 Examined Structures and Welding Experiments 134 6.3.2 Creation of Inherent Deformation Database 139 6.3.3 Prediction and Validation of Out-of-plane Welding Distortion 159 6.3.4 Influence of Welding Sequence on Precision Fabrication 163 6.3.5 X Groove Optimization of Butt Welded Joint with Thick Plates 167 6.4 Conclusions 176 Reference 178 Chapter 7 Application of Accurate Fabrication of Offshore Structure 180 7.1 Welding Distortion Prediction and Mitigation Practice of Cylindrical Leg Structure 180 7.1.1 Rack-cylinder Welding Experiment and Measurement 181 7.1.2 Welding Distortion Prediction with Efficient TEP FE Computation 184 7.1.3 Welding Distortion Mitigation with Bead-on-plate Techniques 190 7.2 Welding Distortion Prediction and Mitigation Practice of Cantilever Beam Structure 193 7.2.1 Establishment of Inherent Deformation Database 195 7.2.2 Welding Distortion Prediction with Elastic FE Analysis 203 7.2.3 Mitigation Implementation with Practical Techniques 205 7.3 Conclusions 211 Reference 212 |
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