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Математическое моделирование потери устойчивости ступенчатого физически однородного стержня при ударе о жесткую преграду методом Тимошенко

Математическое моделирование потери устойчивости ступенчатого физически однородного стержня при ударе о жесткую преграду методом Тимошенко

Abstract

Осуществляется математическое моделирование продольного упругого центрального удара системы ступенчатого и однородного стержней о жесткую преграду при неудер-живающих связях путем решения волнового уравнения методом Даламбера. На основе закона сохранения энергии методом Тимошенко рассчитывается величина критической сжимающей нагрузки, в соответствии с которой, далее рассчитывается величина критической предударной скорости, приводящая к потере устойчивости рассматриваемой стержневой системы.

Mathematical modeling of longitudinal elastic central blow of system of step and homogeneous cores about a rigid barrier is carried out, at not holding communications by a solution of the wave equation by Dalamber's method. On the basis of the law of conservation of energy by Tymoshenko's method the size of critical compressing loading according to which, the size of critical pretonic speed leading to loss of stability of considered rod system further pays off.

Keywords

УДАР, УСТОЙЧИВОСТЬ, МОДЕЛИРОВАНИЕ, СКОРОСТЬ, ДЕФОРМАЦИЯ

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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