МОДЕЛЮВАННЯ КОЛИВАННЯ СТАЛЕВОЇ ПЛАСТИНИ У ВОДІ ПІД ДІЄЮ НАВАНТАЖЕНЬ ДЛЯ ОЦІНКИ БЕЗПЕКИ КОНСТРУКЦІЇ

Анотація

Modeling the oscillations of a steel plate in water under the action of loads to assess the safety of the structure is an urgent task of modern design. The aim of this work was to study the behavior of a plate immersed in a fluid that performs forced oscillations under the action of an applied load; the mechanism of behavior of this interaction and the determination of the attached masses of fluid. Knowledge of the attached masses helps to assess the effect of the liquid. The oscillations of a steel plate in water under the action of two types of loads were studied. For the harmonic analysis of the oscillations of the plate, our own frequency response was constructed, which was compared with the frequency response obtained by solving a series of FSI problems. From the comparison of the obtained frequency response it is concluded that the possibility of using harmonic analysis to study the stress-strain state of the plate during its oscillations. The method of harmonic analysis with the addition of the attached mass of water can be used at low oscillation frequencies to resonance.