No full-text available
To read the full-text of this research,
you can request a copy directly from the author.
Coupled vibrations of the tilting gate and surrounding water.
Abstract
Discusses finite element method modelling of tilting gate vibrations. Considers first free vibration of a structure without water, and outlines the solution procedure. For structures in contact with water the added mass is determined from pressure distribution calculations using Laplace's equation. The fluid region is divided into tetrahedral and pentrahedral three dimensional elements. Describes comparison of numerical calculations (with the PROMES program developed) with measurements on model tests and actual gates. (C.J.U.)
A new method for calculating the mean value of the local hydrodynamic pressure acting upon a hinged gate and a mathematical model of pressure pulsation are developed. The mean hydrodynamic pressure at an optional point on the surface of a hinged gate is obtained by using the Bernoulli equation and model test data. The problem of the pulsation phenomenon of hydrodynamic pressure is solved by considering the random character of the process and by making measurements of pressure fluctuation. Numerical analysis of the results obtained make it possible to determine the autocorrelation function and the power spectral density function and, in consequence, to draw conclusions concerning the character of and reasons for the pulsation phenomenon of the pressure. As a result of the investigations, a normalized power density spectrum equation, which characterized the frequency of the pressure pulsation, is derived.
ResearchGate has not been able to resolve any references for this publication.