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Гашение нестационарных колебаний механической системы, состоящей из пластины и сосредоточенной массы. Пассивная виброзащита

Гашение нестационарных колебаний механической системы, состоящей из пластины и сосредоточенной массы. Пассивная виброзащита

Abstract

Механическая система состоит из прямоугольной изотропной пластины средней толщины, шарнирно-опёртой по контуру, и присоединённых к ней в разных точках сосредоточенной массы и пассивного демпфера. На пластину воздействует нестационарное нагружение, вызывающее колебания. Влияние сосредоточенной массы и демпфера моделируется дополнительными нестационарными сосредоточенными силами, приложенными к пластине. Исследования сводятся к анализу системы интегральных уравнений Вольтерра, которые решаются численно с использованием регуляризирующего алгоритма А. Н. Тихонова. Приведены примеры расчетов для прямой и обратной задач при пассивном гашении нестационарных колебаний пластины. The mechanical system consists of a rectangular isotropic hinged medium thickness plate and a concentrated mass and a passive damper attached to it at different points. The plate is impacted by non-stationary loading, causing vibrations. The influence of the concentrated mass and the damper is simulated by additional nonstationary concentrated forces applied to the plate. The research is reduced to the analysis of a system of Volterra integral equations, which are solved numerically with using Tikhonov regularization algorithm. Examples of calculations for the direct and inverse problems of passive suppression of non-stationary vibrations of the plate are given.

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Keywords

пластина средней толщины, нестационарное нагружение, пассивный демпфер, Volterra integral equations, обратная задача, система интегральных уравнений, nonstationary loading, passive damper

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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
Green