Dubyk Y. Fluid-Structure Interaction in the vibration analysis of piping systems

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0417U002068

Thesis Registration Form

0417U002068.pdf

Applicant for

Dubyk Yaroslav Romanovich

Specialization

05.02.09 - Динаміка та міцність машин

Date of defense

18-05-2020

Specialized Academic Board

Д 26.241.01

G.S. Pisarenko Institute for Problems of Strength of the National Academy of Sciences of Ukraine

Essay

The internal fluid influence on piping vibrations is studied in this thesis. Solutions for straight pipe with Poisson and junction coupling are given. The orthogonality conditions of the mode shape for the fluid-structure interaction problem are derived. The method of calculating the frequencies and amplitudes of acoustic vibrations, induced by fluid moving in long pipelines with closed branches, was proposed. The results of study were used to mitigate the vibration level of secondary steam lines of Nuclear Power Plant.

Thesis supervisor

Orynyak Igor Volodymirovich

Official opponents

Лимарченко Олег Степанович
ХарченкоЄвген Валентинович

Files

aref.doc

dis.doc

Similar theses

0523U100047

Drach Ilona Volodymyrivna

Scientific Bases of Automatic Balancing of Rotor by a Liquid Balancer

0421U103633

Oryniak Andrii Igorovich

Calculation methods for Stress Intensity Factor with accounting for geometrical nonlinearity and arbitrary crack form

0521U101913

Lavinskii Denis Volodymyrovych

Estimated method for evaluating the effect of electromagnetic fields on elastic-plastic deformation of equipment of technological devices

0421U102926

Onyshchenko Serhii V.

Justification of method of calculation of head rubber-cable ropes of mine hoists considering disturbed shaft geometry

0421U102625

Viazovychenko Yuliia Andriivna

Thermo-stress state of viscoelastic rubber-cord elements of structures taking into account energy dissipation during cyclic deformation