本专著面向深海科技发展急需、重大专项和技术领先方向，紧密围绕深海耐压壳装备设计理论与应用技术这个核心主题，针对现有球形结构存在缺陷敏感性高、水动力学特性差、壳内空间利用率低等问题，提出一种新型结构—蛋形耐压壳替代球形耐压壳，从生物学、应用力学、海洋工程学和仿生学角度，全面阐述了深海蛋形耐压壳、蛋形仿生封头、多蛋交接耐压壳研究的最新成果。专著内容系统完整，理论创新性明显，技术实用性强，可以直接指导生产实践。专著的出版对全面提升我国深海工程装备自主研发能力具有重要实践意义，也为中国深海耐压装备产业创新发展提供参考和支撑。

Chapter 1 Introduction
1.1 Background and significance
1.2 Overview of research status
1.2.1 Externally pressurized spherical shells
1.2.2 Externally pressurized untypical shells
1.2.3 Externally pressurized domed heads
1.2.4 Shell buckling research approaches
1.2.5 Externally pressurized multi-segment shells
1.3 Problems and solution
1.4 Structure of the monograph
References
Chapter 2 Buckling of deep sea spherical pressure hulls
2.1 Buckling analysis of geometrically perfect and imperfect hulls
2.1.1 Geometry and material
2.1.2 Buckling of geometrically perfect hulls
2.1.3 Buckling of geometrically imperfect hulls
2.2 Effect of yield strength on the buckling of hulls
2.2.1 Perfect geometry analysis
2.2.2 Imperfect geometry analysis
2.3 Experimental methodology of spherical shells
2.3.1 Shell manufacturing and testing
2.3.2 Material properties
2.4 Buckling analysis of spherical shells
2.4.1 Experimental and analytical results
2.4.2 Comparison between experimental and numerical results ...
2.4.3 Effect of constitutive models
2.4.4 Effect of geometrical imperfections
2.5 Summary
References
Chapter 3 Bionic design of egg-shape pressure hulls
3.1 Geometric properties of goose eggshells
3.1.1 Size of goose eggshells
3.1.2 Surface area and volume of goose eggshells
3.1.3 Symmetry of goose eggshells
3.1.4 Shape function of goose eggshells
3.1.5 Thickness of goose eggshells
3.2 Load carrying capacities of goose eggshells
3.2.1 Experimental results of goose eggshells
3.2.2 Numerical results of goose eggshells
3.2.3 Comparison between experimental and numerical data
3.3 Configuration and size egg-shaped pressure hulls
3.4 Strength, stability, and buoyancy of egg-shaped pressure hull
3.4.1 Strength and stability of egg-shaped pressure hull
3.4.2 Uniform wall thickness analysis of egg-shaped pressure hulls
3.4.3 Non-uniform wall thickness analysis of egg-shaped pressure hulls
3.4.4 Spherical pressure hulls analysis
3.5 Analytical results of egg-shaped and spherical pressure hulls
3.6 Numerical results of egg-shaped and spherical pressure hulls
3.7 Evaluation and comparison of main properties for pressure hulls
3.8 Summary
References
Chapter 4 Effect of geometrical parameters on buckling of egg-shaped pressure
hulls
4.1 Effect of shape index on buckling of egg-shaped pressure hulls
4.1.1 Geometry of egg-shaped pressure hulls
4.1.2 Capacity and mass of egg-shaped pressure hull
4.1.3 Numerical modeling of egg-shaped pressure hulls
4.1.4 Linear buckling of egg-shaped pressure hulls
4.1.5 Nonlinear buckling of egg-shaped pressure hulls
4.2 Effect of wall thickness on buckling of egg-shaped pressure hulls
4.2.1 Buckling of geometrically perfect egg-shaped pressure hulls
4.2.2 Buckling of geometrically imperfect egg-shaped pressure hulls
4.2.3 Comparison between egg-shaped and spherical pressure hulls
4.3 Buckling experimentation using CNC-machined egg-shaped shells
4.3.1 Experimental buckling of CNC-machined egg-shaped shells
4.3.2 Numerical buckling of CNC-machined egg-shaped shells
4.4 Buckling experimentation using rapid prototyping egg-shaped shells
4.4.1 Experimental buckling of rapid prototyping egg-shaped shells
4.4.2 Numerical buckling of rapid prototyping egg-shaped shells
4.4.3 Effects of imperfection shape and size on buckling of egg-shaped shells
4.5 Summary
References
Chapter 5 Enhancement of egg-shaped pressure hulls using non-uniform wall thickness
5.1 Design and fabrication of egg-shaped pressure hulls
5.1.1 Geometrical design
5.1.2 Sample fabrication
5.2 Measurement and test
5.2.1 Shape scanning of samples
5.2.2 Hydrostatic test of samples
5.2.3 T