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Динамика плавучего крана «Волгарь» на волнении моря

Динамика плавучего крана «Волгарь» на волнении моря

Abstract

The dynamic analysis of the behavior of the ship, crane and other structures, consisting of thin-walled cores, at random external impact still remains a subject of the research. The theoretical bases of creation of the mathematical model of the thin-walled core of the closed profile in the local system of coordinates at spatial deformation taking into account a shift of the median surface are given. The mathematical ratios for creation of the rigidity matrix of the thin-walled core of the closed profile, which can be used in the static and dynamic calculation analysis of the structures using the method of finite elements, are received.

Динамический анализ поведения корабельных, крановых и других конструкций, состоящих из тонкостенных стержней, при произвольном внешнем воздействии до настоящего времени остается предметом исследований. Приведены теоретические основы построения математической модели тонкостенного стержня замкнутого профиля в местной системе координат при пространственном деформировании с учетом сдвига срединной поверхности. Получены математические соотношения для построения матрицы жесткости тонкостенного стержня замкнутого профиля, которая может быть использована при статическом и динамическом расчетном анализе конструкций методом конечных элементов.

Keywords

ТОНКОСТЕННЫЙ СТЕРЖЕНЬ ЗАМКНУТОГО ПРОФИЛЯ,МАТРИЦА ЖЕСТКОСТИ,МАТЕМАТИЧЕСКАЯ МОДЕЛЬ,КОНЕЧНО-ЭЛЕМЕНТНОЕ МОДЕЛИРОВАНИЕ,THIN-WALLED CORE OF CLOSED PROFILE,RIGIDITY MATRIX,MATHEMATICAL MODEL,FINITE ELEMENT MODELING

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold