... such as resource exploration, underwater search and rescue. The pressure shell, as the main structure component, withstands deep sea hydrostatic pressure and is essential for maintaining the normal operation of equipment. Currently, thin-walled ring-stiffened cylindrical shells, which have strong pressure-bearing...

... to external pressure are given. INTRODUCTION Stiffened cylindrical shell structures are widely used in design of underwater vehicle structures (Pasternak et al., 2022). The sensitivities of buckling loads of the cylindrical shells to thickness imperfection under external pressure was discussed (Yang et al...

... ABSTRACT The active vibration control of a cylindrical shell coupled with complex inner foundations is theoretically investigated using a hybrid analytical-numerical approach. The motion and solution of the shell are described by Flugge theory and wave based method, respectively. Inner...

... ABSTRACT In this research, a buckling numerical analysis of stiffened and unstiffened cylindrical shells is presented; in the first part of this work, the numerical FE code has been validated by comparing the numerical results with an experimental campaign carried out at the Department...

... ABSTRACT Nineteen mild steel cylindrical shells with non-uniform axial length were manufactured and collapsed under axial compression. Results of the experimental tests and the follow-up computations of the cylinder's buckling load using ABAQUS FE code are provided. There was a good agreement...

... ABSTRACT This paper proposes an estimated formula for the tripping buckling strength of the ring-stiffener attached in stiffened cylindrical shells under external pressure. The proposed formula is derived assuming the tripping buckling as the buckling of only the flange supported by springs...

... ABSTRACT In this paper, the free vibration characteristics of a half liquid-filled and submerged, horizontal cylindrical shell are investigated with the consideration of the linear sloshing effect by an analytical method. It is assumed that the shell is submerged in water and the shell's...

... ABSTRACT With single ring-stiffened cylindrical shell taken as an object, the model experiment was carried out to study the influence of the effects of force and sound excitation on the single cylindrical shell in air and underwater. Then, by using Abaqus and LMS Virtual.Lab FE/BE software...

... submerged finite elliptic cylindrical shell vibration stiffener circular cylindrical shell circumferential modal parameter modal frequency submerged elliptic cylindrical shell ring stiffener axis frequency elliptic cylindrical shell equation ellipticity cylindrical shell...

...-dimensional stress distribution distribution 2 stress amplitude vibration different complex stress distribution natural frequency variation stress distribution frequency different stress distribution natural frequency distribution 1 free vibration great importance cylindrical shell structural...

... are created. As a result, glass-metal composite obtain an exceptionally high shock resistance and durability having a relatively low weight. Due to high durability and corrosion resistance glass-metal cylindrical shells are the perspective material for deepwater apparatus, tanks for radioactive waste...

... cylindrical shell installation A Study on Suction Pile Shell Buckling and Soil Failure Utilizing Predicted and Real-time Monitored Suction Pressures during Installation Yuan-Hung Kuo, Bo-Siou Wei, and Jeff Measamer Subsea Engineering, McDermott International Inc. Houston, Texas, USA ABSTRACT Suction...

... model for the stresses on a compressible foundation soil in front of a thin cylindrical shell with infill due to the eccentric loading is developed. A modeling and experimental determination of the interface strength of the contact surface between the infill and the inner surface of the shell...

... carried out this studies with three different approaches: the arc-length method, the static stabilizing method with artificial damping for local instability. We also give a well-known buckling problem of circular cylindrical shell under axial compression. strength bracket pontoon node...

... available experimental data and standard design codes. cylinder sensitivity application point load imperfection cylindrical shell point load collapse load eigenvalue imperfection imperfection pattern imperfection load-deflection curve boundary condition open end initial imperfection...

... attitude tethered underwater robot experimental study control operation propulsion force cylindrical shell water jet thruster Experimental Study on Water Jet Underwater Robot Jiaming Wu, Ying Xu, Zhijian Ye, Chengwei Zhang Department of Naval Architecture and Ocean Engineering South China...

... Abstract This study deals with the free vibration analysis of composite sandwich cylindrical shell with a flexible FGM core submerged in water by using a higher order sandwich panel theory and considering the fluid pressure. The first order shear deformation theory is used for the face sheets...

... into the design, the description of design details, the fabrication and installation options as well as the applied ocean environment loads affecting the design of the tethering system and the overall fabricated and installed costs are presented for both 50 m and 100 m water depth sites. cylindrical shell...

... cable fatigue damage at the interface. The TLWT structure is made up of simple cylindrical shells with ring stiffeners and does not have complex structural joints. This simplicity of design facilitates simplicity in fabrication and installation. Parallel construction and simple details shorten...

... design. As stated, installation process is not the only factor that subjects an offshore pipeline to bending, but a pipeline would also experience bending loads during its in-service life, such as the case of free spanning pipes in offshore. If a cylindrical shell, such as a pipe, is bent significantly...