Browsing Том 1 by Author "Довнар, С. С."
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Бионическая реновация колонны тяжелого прецизионного станка с ЧПУ
Довнар, С. С.; Лапука, А. Д. (БНТУ, 2021)Bionic solution for reinforcement of “travelling column” machine is developed. It concerns special project of old heavy precise machine redesign and renovation. It is proposed to attach tree-like polymer-concrete outer bandage to the flexible column. Bionic-shape vertical console is created. Design is proved by FEA simulation. Static rigidity is increased twice. Bending eigenmode ...2022-03-03 -
МКЭ-анализ и оптимизация жесткости чугуно-бетонного индексного стола для крупного многоцелевого станка
Довнар, С. С.; Макаренко, К. Д.; Николаев, Д. А. (БНТУ, 2021)FEA simulation of the huge indexing table for a multi-purpose machine tool is provided. Excessive corner flexibility of the initial design is revealed. A set of reinforcing design solutions is generated. Several combinations of cast iron ribs and polymer concrete inserts are analyzed. Corner rigidity is enhanced from 48.8 to 388.5 N/μm with table weight rising from 5.36 to 6.98 ...2022-03-03 -
МКЭ-анализ имплементации бионических консольных оболочек в дизайн вертикальных хранилищ
Довнар, С. С.; Лапука, А. Д.; Венслаускас, В. А. (БНТУ, 2021)FEM simulation of bionic console shells derived from shape variants of Adenium obesum socotranum plant is provided. A set of shell geometry models is developed. Plant contours similarity to the idealized equal-stress beam is stated. The usefulness of wall thickness control to shell structural stress alleviation is proved.2022-03-03 -
МКЭ-анализ несущей системы башни Азинелли в Болонье
Довнар, С. С.; Лапука, А. Д.; Дулуб, А. Д.; Кустов, С. В. (БНТУ, 2021)FEA of a load-bearing system for well-known Asinelli’s tower is provided. Threelayer model “outer brick – filling – inner brick” is developed for historic tower walls. Frictional contact pair is created between the tower itself and the basement. Static simulation of gravity and hurricane loading is fulfilled. Stress state harmonization between outer and inner brick shells is ...2022-03-03