Peculiarities of dynamics of the reservoir with a free–surface liquid on pendulum suspension with the moving suspension point
Date
2018-01-15
Journal Title
Journal ISSN
Volume Title
Publisher
Lviv Politechnic Publishing House
Abstract
Розглянуто задачу динамiки резервуара цилiндричної форми, частково заповненого
рiдиною, на маятниковому пiдвiсi з рухомою точкою пiдвiсу. Задачу розглядають у
нелiнiйнiй постановцi з метою визначення впливу маятникового пiдвiсу на частотнi
характеристики i поведiнку системи в бiлярезонанснiй зонi. Аналiтично i чисельно
дослiджено, що власнi частоти коливань суттєво змiнюються як для квазiтвердої ма-
ятникової форми руху, так i особливо для частоти коливань рiдини. Чисельнi прикла-
ди показали, що резонанснi властивостi системи для дорезонансного, зарезонансного
i бiлярезонансного режимiв суттєво вiдрiзняються i для усiх випадкiв сильно прояв-
ляється ефект амплiтудної модуляцiї.
A problem of dynamics of a reservoir of cylindrical shape, partially filled with liquid, on pendulum suspension with movable suspension point is under investigation. The problem is considered in nonlinear statement with the purpose of clarification of the effect of pendulum suspension on both frequency characteristics and the system behavior in the near-resonance zone. An analytical and numerical study shows that normal frequencies of oscillations have considerable changes for both quasi-rigid pendulum mode of motion and especially for the frequency of liquid sloshing modes. Numerical examples show that resonant properties of the system for below resonance, above resonance and near resonance modes are considerably different and the effect of amplitude modulation manifests strongly for all cases.
A problem of dynamics of a reservoir of cylindrical shape, partially filled with liquid, on pendulum suspension with movable suspension point is under investigation. The problem is considered in nonlinear statement with the purpose of clarification of the effect of pendulum suspension on both frequency characteristics and the system behavior in the near-resonance zone. An analytical and numerical study shows that normal frequencies of oscillations have considerable changes for both quasi-rigid pendulum mode of motion and especially for the frequency of liquid sloshing modes. Numerical examples show that resonant properties of the system for below resonance, above resonance and near resonance modes are considerably different and the effect of amplitude modulation manifests strongly for all cases.
Description
Keywords
коливання рiдини, резервуар на маятниковому пiдвiсi, бiлярезо- нанснi режими руху, амплiтудна модуляцiя, liquid oscillations, reservoir on pendulum suspension, near resonance modes of motion, amplitude modulation
Citation
Limarchenko O. Peculiarities of dynamics of the reservoir with a free–surface liquid on pendulum suspension with the moving suspension point / O. Limarchenko, A. Nefedov // Mathematical Modeling and Computing. — Lviv : Lviv Politechnic Publishing House, 2018. — Vol 5. — No 1. — P. 41–47.