Ensuring High Performance Characteristics For Explosion-Welded Bimetals

Shapoval, Alexander; Mospan, Denis; Dragobetskii, Volodymyr

doi:10.1007/s11015-016-0292-9

Cited by 44 publications

(27 citation statements)

References 2 publications

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“…The deformations redistribution on both across and along the weld seam was provided by the use of a set of dies with a different sizes of the ellipses semi-axes ratio (Table 4). Tables 3 and 4, the dependence of ε θ (1) and ε Z (2) both across and along the weld seam was obtained, at which the welded joint failure occurs ( Fig. 16).…”

Section: Experimental Research Resultsmentioning

confidence: 99%

“…According to [1], the hardening of the weld can significantly increase the fatigue resistance. Thus, if the previously considered [2] that the durability of the welded joint is determined mainly by the cracks proliferation after welding since the significant defects after welding remain leading to the elimination of the crack initiation step, in [3] shown the basic and, perhaps, the dominant role of the stage of its formation. The published data on the effects of cold plastic deformation resistance to fatigue failure is very limited and contradictory.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Method of Determination of Technological Durabilityof Plastically Deformed Sheet Parts of Vehicles

Dragobetskii¹,

Zagirnyak²,

Naumova³

et al. 2018

IJET

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The purpose of the article is to develop an apparatus providing maximum or predicted durability of parts treated during their manufacture by plastic deformation. In these terms, the parameters of the technological process should provide the maximum or expected increase of the endurance limit in comparison with the initial parts values before the strengthening by the surface plastic deformation or after plastic forming. The article describes the influence of the degree of preliminary deformation on the kinetics of fatigue failure of metals and alloys. Experimental data of the ultimate deformations of welded workpieces were obtained, which make it possible to evaluate the manufacturing of parts with a weld seam at the design stage of the technological process. The developed method made it possible to determine the nonstationary field of stresses in the deformation region, ultimate deformations and the most rational scheme of the stress-strain state, which excludes the localization of deformations and destruction of the weld zone of a welded cylindrical workpieces.

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Section: Experimental Research Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Method of Determination of Technological Durabilityof Plastically Deformed Sheet Parts of Vehicles

Dragobetskii¹,

Zagirnyak²,

Naumova³

et al. 2018

IJET

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show abstract

“…Despite the fact that the technological operation change in time leads to energy product cost change and to the equipment wear, the criterion "productivity" continues to be used in optimization problems [8].…”

Section: Development Of a Verification Methods Of Estimated Indicatorsmentioning

confidence: 99%

Development of a verification method of estimated indicators for their use as an optimization criterion

Lutsenko

Fomovskaya

Oksanych

et al. 2017

EEJET

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“…In [13], 787 kinds of KPI balanced scorecards which developers offer for the operational processes efficiency problem solution have been allocated [12].…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Development of the method of quasi-optimal robust control for periodic operational processes

Lutsenko

Fomovskaya

Koval

et al. 2017

EEJET

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Пошук супремуму оптимальної траєк-торії управління практично недосяжний в реальних умовах. Це пов'язано з великою кількістю ступенів свободи керованої сис-теми, коливанням попиту, вхідних і вихід-них цін, істотною нелінійністю внутріш-ньосистемних процесів. Виходом в такій ситуації може бути розробка робастних методів квазіоптимального управління. Пропонований підхід заснований на встанов-ленні взаємозв'язку управління перетворю-вальної системи з поточним рівнем виробни-чих запасів Ключові слова: оптимізація пов'язаних систем, квазіоптимальний управління, ро-бастна оптимізація, квазіоптимальна трає-кторія управління Поиск супремума оптимальной траекто-рии управления практически недостижим в реальных условиях. Это связано с большим количеством степеней свободы управляе-мой системы, колебанием спроса, входных и выходных цен, существенной нелинейно-стью внутрисистемных процессов. Выходом в такой ситуации может быть разработ-ка робастных методов квазиоптимального управления. Предлагаемый подход основан на установлении взаимосвязи управления преобразовательной системы с текущим уровнем производственных запасов Ключевые слова: оптимизация связан-ных систем, квазиоптимальное управление, робастная оптимизация, квазиоптимальная траектория управления UDC 007.5

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Ensuring High Performance Characteristics For Explosion-Welded Bimetals

Cited by 44 publications

References 2 publications

Method of Determination of Technological Durabilityof Plastically Deformed Sheet Parts of Vehicles

Method of Determination of Technological Durabilityof Plastically Deformed Sheet Parts of Vehicles

Development of a verification method of estimated indicators for their use as an optimization criterion

Development of the method of quasi-optimal robust control for periodic operational processes

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