DOI: 10.14489/td.2019.02.pp.058-060

Verdiyev S. B., Alieva Ye. N.
QUESTIONS ON OPTIMIZATION OF DIAGNOSTICS AND PROGNOSIS OBJECTS OF DEFORMATION CHARACTERISTICS OF CHIMNEYS OF ENERGETIC OBJECTS
(pp. 58-60)

Abstract. The cylindrical elevated constructions, including towers, chimneys and other installations has a special vibrations frequency and upon coincidence of it with frequency of effected turbulent torrents the threatening vibrations of whole structure may occur. In the article following types of structure’s vibrations in condition of turbulent loads are considered: 1) harmonical vibrations; 2) random pulse type deviations. The first task of researches in this article is study of feasibility of prognosis of parameters of pulse type deviations of structures using data of harmonical vibrations. The task on prognosis of pulse type deviations of cylindrical elevated constructions under effect of wind upon presence of data on harmonical vibrations and result of vibration’s decrement in condition of noisy signals is formulated and solved. The second task of researches in the article is optimization of diagnostics of deformation characteristics of thermal tubes of energetic objects. The zone-territorial method for optimum planning of diagnostics of chimneys is suggested. The main assumption is that chimneys in the studied area are installed with nonequal spatial density and the territory may be divided on zones, where number of chimneys on different zones forms a regular set. The task on optimization of diagnostics of deformation characteristics of chimneys of stations effected by wind is formulated and solved. The informatively of results of carried out measurements of chimneys vibrations under effect of wind is considered as a potential possibility to derive an accurate data on chimneys condition.

Keywords: chimney, decrement, deformation, optimization, vibrations, pulse type deviations.