Design and analysis of small submersible pressure hulls

Reynolds, Thomas E.; Lomacky, Oles; Krenzke, Martin A.

doi:10.1016/0045-7949(73)90042-4

Cited by 16 publications

(13 citation statements)

References 4 publications

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“…The curve shows that the maximum Tsai-Wu failure is inversely proportional to 1 . Figure 11(j) has the same trend as Figure 11(g) but 1 has a greater influence on the value of the maximum Tsai-Wu failure than 4 . In order to avert the failure, 1 and 4 must be more than 1.79e-3m and 1.08E-03m, respectively.…”

Section: Effect Of Design Variables On Maximum Tsai-wu Failuresupporting

confidence: 58%

“…Pressure hulls are designed to withstand the hydrostatic load associated with diving to depths usually measured in the hundreds of meters [2]. One of the major problems confronted by the designer of deep submersibles is to minimize the weight of the pressure hull and to increase the payload, propulsion, and velocity of submersible vessels, which can be achieved through the advanced hull concept and efficient material systems [3,4].…”

Section: Introductionmentioning

confidence: 99%

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Design Optimization of Composite Elliptical Deep-Submersible Pressure Hull for Minimizing the Buoyancy Factor

Fathallah

Tong

et al. 2014

Advances in Mechanical Engineering

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The design of deep submersible pressure hull's structural is one of the core technologies of submersible development of human history. Submersible pressure hulls with fiber-reinforced multilayer constructions have been developed in the recent years as substitutes for classical metallic ring-stiffened pressure hulls; strength and stability are its top priority. This paper investigates the optimum design of a composite elliptical deep-submerged pressure hull under hydrostatic pressure to minimize the buoyancy factor of the submersible pressure hull under constraints on the failure criteria and the buckling strength of the hulls to reach the maximum operating depth. The thickness and the fiber orientation angles in each layer, the radii of the ellipse, and stringers dimensions were taken as design variables and determined in the design process. The optimization procedures are performed using commercial finite element analysis software ANSYS. Additionally, a sensitivity analysis is performed to study the influence of the design variables on the structural optimum design. Results of this study provide a valuable reference for designers of underwater vehicles.

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Section: Effect Of Design Variables On Maximum Tsai-wu Failuresupporting

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Design Optimization of Composite Elliptical Deep-Submersible Pressure Hull for Minimizing the Buoyancy Factor

Fathallah

Tong

et al. 2014

Advances in Mechanical Engineering

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“…A very limited number of publications have drawn our attention and some of those studies that are closely related to the subject matter are summarized within the scope of this chapter. During research, [19] the analysis of the body weight of a pressure-resistant submarine, its structural properties, vibration, tension, analysis of its stationary state, and analysis of its structural fatigue reality were done by means of a computer program. In another survey [15], the direct matrix and replacement technique was utilized in order to solve its potential of speed by using a normal gradient while examining a two-dimensional submerged vessel.…”

Section: Introductionmentioning

confidence: 99%

Modeling of Flow Around a Solid Body in Free and Restricted Fluidal Media

Süner

2015

Progress in Clean Energy, Volume 1

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Design has become one of the most essential tasks for human beings throughout the history of mankind. The accurate modeling and analysis of solid bodies moving in free fluid media (such as canals) for velocity, pressure, and forces have become quite significant. In conjunction with this, it is a challenging task to design solid bodies with complex geometries and structures in multidimensional form and it needs the utmost care and attention. Moreover, it is inevitable to develop and design some new systems that will enable us to reduce the energy requirements to minimum levels because nowadays saving energy has become one of the hottest issues for attaining sustainability. In this study, energy-efficient and -effective solid bodies are designed and analyzed by developing a two-dimensional model to study the distributions of flow velocity, pressure, and forces in free and restricted environments. The generalized model solutions are achieved in MATLAB. The results are then discussed for optimum conditions.

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“…The pressure hull is the main structure of a deep-diving submersible vehicles and frequently constitutes one-half and more of the total weight of the vehicle [2]. One of the major problems confronted by the designer of deep submersibles is to minimize the weight of the pressure hull, to increase the payload, propulsion velocity of submersible vessels, reduce the cost of submarine construction, and life support for the hull with the lowest weight to buoyancy ratio at a given depth.…”

Section: Introductionmentioning

confidence: 99%

“…One of the major problems confronted by the designer of deep submersibles is to minimize the weight of the pressure hull, to increase the payload, propulsion velocity of submersible vessels, reduce the cost of submarine construction, and life support for the hull with the lowest weight to buoyancy ratio at a given depth. These improvements can be achieved through the advanced hull concept and efficient material systems [2,3]. Buoyancy requirement for the weight-sensitive structures can be easily meet by applying a composite material, which has an excellent specific strength and stiffness and therefore can be able to reduce the weight of the structure itself.…”

Section: Introductionmentioning

confidence: 99%

Optimum Structural Design of Deep Submarine Pressure hull to achieve Minimum Weight

Fathallah¹,

Helal

2016

The International Conference on Civil and Architecture Engineer

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The pressure hull is a significant structural component of underwater vehicles, to enable them to withstand environmental loadings such as hydrostatical pressure. Geometric configurations such as hull shape, shell thickness, stiffener layout, and type of construction materials are the key factors influencing the structural performance of pressure hulls. This study aims to maximize the structural efficiency of elliptical deep-submerged pressure hull under hydrostatic pressure. Minimize the buoyancy factor of a submarine pressure hull under hydrostatic pressure was proposed as an objective function to achieve Minimum Weight, with constraints on factors such as general instability, buckling of shell between stiffeners, plate yielding, stiffeners yielding and operating depth. The shell thickness, the radii of the ellipse, the stiffeners offsets and the stiffeners dimensions are selected as design variables. Additionally, a sensitivity analysis is performed to study the influence of the design variables on the structural optimum design, the buoyancy factor ， strength and stability ． The Optimization results of this study provide a valuable reference for designers of underwater vehicles.

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Design and analysis of small submersible pressure hulls

Cited by 16 publications

References 4 publications

Design Optimization of Composite Elliptical Deep-Submersible Pressure Hull for Minimizing the Buoyancy Factor

Design Optimization of Composite Elliptical Deep-Submersible Pressure Hull for Minimizing the Buoyancy Factor

Modeling of Flow Around a Solid Body in Free and Restricted Fluidal Media

Optimum Structural Design of Deep Submarine Pressure hull to achieve Minimum Weight

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