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- Autors
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Fidrovska N. M., Slepuzhnikov E. D., Perevoznyk I. A., Nesterenko V. V.
- Issue
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Hoisting and transport equipment, 2025, №1(69)
- Pages
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50-66
- DOI
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10.15276/pidtt.1.69.2025.05
- Abstract
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We present an experimental study of the stability of the three-ball cylindrical structure of the sealed running wheel of an overhead crane, which is a spring insert. The construction of multi-spherical structures is most widely used in the rest of the time, but a thorough methodology for the development of such structures has not yet been developed. This is primarily due to the stagnation of spherical structures, regardless of the fact that in many situations such structures may have significant advantages over those with a simple design. Often, when using a multi-ball design, nutritional value and durability are compromised.
In a practical design of multi-spherical cylindrical shells, the actual anisotropic wall can be replaced by a mechanically equivalent one-unit orthotropic wall. The orthotropic wall shares, however, with the anisotropic wall the normal elastic modulus and Poisson's ratio in the downstream and hoop directions, as well as the values of the value of both materials.
The method of designing a composite structure, which is based on the reduced to orthotropic design, allows a whole range of engineering tasks to be completed with an accuracy sufficient for practical design. At the stage of design research, the method of developing the compositional structure is completely suitable, as it gives equal consistency and consistency between theoretical and experimental results.
It is important to more accurately determine the spring characteristics of the composite material when assessing the strength and durability of multi-spherical cylindrical shells and analyzing experimental results. This is explained by the fact that the compositional material is consistent with the dissemination of power.
The reserve has been removed to determine the critical external pressure with the alignment of the geometric parameters of the wheel and the spring forces of all three balls that enter the warehouse. In addition, the method of expansion of the structure follows the law of division of attraction into a cylindrical shell, which provides closeness to other schemes of power factors.
- Keywords
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three-ball shell, anisotropic wall, orthotropic wall, elastic modulus, critical pressure.
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