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Exploratory investigation of nonwelded pressure hulls for hydrospace vehicles by Arthur C. Macurdy

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Published by Dept. of the Navy, David Taylor Model Basin in Washington, D.C .
Written in English

Book details:

Edition Notes

Statementby Arthur C. Macurdy
SeriesReport -- 1762
ContributionsDavid W. Taylor Model Basin
The Physical Object
Paginationii, 23 p. :
Number of Pages23
ID Numbers
Open LibraryOL24362932M

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Pressure hulls are structures that are designed to withstand hydrostatic pressure, so that stability or collapse is the major structural design consideration. As they typi-cally operate in seawater, pressure hulls are susceptible to corrosion damage. Corro-sion that results in a loss of structural material can significantly reduce the collapseCited by: 4. Pressure Hull Design The general shape of the pressure hull design is a circular section of a cylinder with a length of m, and an inner diameter of m. The circular cylinder shell is made of aluminum alloy T6 with a Young’s modulus of 69 GPa and Poisson’s ratio of Overviews of Investigation on Submersible Pressure Hulls Figure 13 “Aluminan” Submersible Arc Shaped Cylindrical Structure Arc shaped cylindrical structure, developing from straight cylinder, can increase the strength of the hull, avoid the large stress of hull’s middle part, and also reduce. Overviews of Investigation on Submersible Pressure Hulls. With the exploration of natural resources and the research on oceanography in the deep sea obtained more and more attention, in the recent years, the pressure hull of the submersibles has been widely studied and used in many states. In order to the continuing design and assessment on it.

The paper presents an investigation into various methods of calculating the theoretical collapse loads for a pressure vessel, under uniform external hydrostatic pressure; based on different design. submarine pressure hulls. The end goal of the program is to generate corrosion tolerance guidelines that can be used by engineers to make informed maintenance decisions for the Victoria and Walrus class submarines. Earlier stages of the test program studied the effect of corrosion thinning on pressure hulls using small-scale ring-stiffened. Pressure Hulls and Exostructures. Pressure Hull – the structure that provides the occupants of an underwater submersible with a dry, pressure resistant habitat.. Pressure Hull. Shape. The pressure hull consists of spherical or cylindrical shapes in various combinations. Table 1 illustrates the advantages and disadvantages of various pressure hull shapes. Shotshells, or those sometime strange empty hulls are produced in four general categories.. TARGET – These hulls made of the same design for a number of years. We think of these hulls as trap, international trap, skeet, and the various sporting clay shotshells. PROMOTIONAL HULLS - Generally of cheap never seen before and likely not to be seen again after short runs by.

When propellers work in the wake of hulls, the nonuniform inflow results in both the unbalanced bearing forces and pressure fluctuations on the hull surface. The latter one is especially serious when the propeller is cavitating. In this paper, a method of predicting the pressure fluctuations on hull surface by a cavitating propeller is presented. The pressure hull manufacturer as well as supplier like machining shops and heat treatment shops shall hold a valid transfer of marking allowance issued by the Society. Transfer of marking allowance of a manufacturer can be extended to supplier if an authorized representative of . A typical submarine pressure hull consists of a combination of thin-walled circular cylinders, cones and domes, as shown in Fig. In this chapter, we will consider both the thin-walled circular cylinder and the thin-walled circular cone. Now under uniform external pressure, such a vessel can implode through shell instability or lobar buckling (see chapter 1), at a fraction of the pressure. " Complete tests of two 1/8-s:ale hull,segment have bean conducted. These havo provided numerica.l values of the structurel ers needed to supplement the dynamic ar~al ysas and tests., Ccmpleta analyses have been made for t~.e static casc:o Apparatus for dynamic tests of hull models has bsan.