Stability Analysis for a Single-Layer Reticulated Shell

Duan, Jinming; Jun, Cong; Feng, Guo; Lin, Bing Chang

doi:10.4028/www.scientific.net/amm.614.635

Cited by 3 publications

(1 citation statement)

References 2 publications

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“…Most often, preference is given to the use of additional elements that serve as a means of strengthening and increasing the load-bearing capacity of cylindrical mesh surfaces. Thus, it is possible to achieve the most complete use of the strength of the material, the desired redistribution of forces, acceptable rigidity and stability of the shells [12][13][14][15][16][17][18][19][20]. Some proposals for schemes for their amplification are found in the literature, but in an incomplete and unrealized form.…”

Section: Introductionmentioning

confidence: 99%

Parameters and Ratios of Metal Cylindrical Mesh Shells

Siyanov

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Finite element modeling, calculation and analysis of metal cylindrical mesh shells are carried out. The choice of the surface topology is justified and the recommended ratios of overall dimensions are adopted. The criteria for determining the stability of the grid are given. The limits of permissible curvature and the main geometric parameters are obtained. The effect of increasing the rigidity and height of the structure on the work of the mesh surface is analyzed. Patterns of changes in nodal deviations and internal force factors of vulnerable areas of the shell are revealed. The results of changes in the shape and features of the critical deformation of the system are presented.

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Section: Introductionmentioning

confidence: 99%

Parameters and Ratios of Metal Cylindrical Mesh Shells

Siyanov

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Experimental Studies of the Cylindrical Mesh Shell Model

Siyanov

Soshina

2021

IOP Conf. Ser.: Mater. Sci. Eng.

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Experimental studies of the effect of full and one-sided external load on a metal cylindrical mesh shell have been conducted. Regularities of stress and displacement distribution over the surface are recorded. The regions with the largest internal force factors and deformation parameters were identified. The values of the experimental critical load and the number of half wave of the form of stability loss are obtained. The risk of unilateral application of the load was established when the critical load was reduced and the maximum displacement exceeded.

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Multi-objective design optimization of a Turret’s U-bracket mounted on moving platform

Anguek

Bounab

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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This paper aims to model and design a lightweight U-bracket for two degrees of freedom (DOF) mechanism used to carry a machine gun. The mechanism is called a weapon station or a gun turret and can be mounted on any mobile platform. Due to the movement of the platform and the gun recoil force, the gun turret is subjected to high disturbances. So, to get better performances in terms of distributed efforts, stability and precision, the mechanism has to be optimally designed. The trunnion axis offset corresponding to higher dynamic and structural performance was determined based on probabilistic analysis and finite element simulations. Then, the co-simulation between MATLAB and ANSYS Parametric Design Language (APDL) was performed to get the optimal shape of the U-bracket by minimizing its mass, and maximizing its first natural frequency subjected to maximum stress constraint. To solve this constrained optimization problem, the Multi-Objective Genetic Algorithm (MOGA) technique was used. Through numerical simulations, the proposed approach shows the ability to provide a generic methodology to design the U-bracket of a 2-DOF weapon station efficiently.

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Stability Analysis for a Single-Layer Reticulated Shell

Cited by 3 publications

References 2 publications

Parameters and Ratios of Metal Cylindrical Mesh Shells

Parameters and Ratios of Metal Cylindrical Mesh Shells

Experimental Studies of the Cylindrical Mesh Shell Model

Multi-objective design optimization of a Turret’s U-bracket mounted on moving platform

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