10.14489/td.2014.07.pp.064-072

2014, 07 July

DOI: 10.14489/td.2014.07.pp.064-072

Safina G.F.
ACOUSTIC DIAGNOSING OF CHARACTERISTICS THE SHOVELS OF THE TURBINE TIED BY THE BANDAGE
(pp. 64-72)

Abstract. The direct spectral task of determination of frequencies of free fluctuations of shovels of the turbine tied by a bandage is considered. According to the solution of a direct task influence of mass and zhestkostny parameters of shovels and a bandage on frequencies of free fluc-tuations of system is investigated and shown that the increase in zhestkost conducts to increase in frequencies of fluctuations, and increase in masses − to reduction of frequencies. For the first time the return task − a problem of diagnosing of characteristics of shovels of known frequencies of their fluctuations is set and solved. Uniqueness of the solution of the return task is investigated, the corresponding theorems are proved. Algorithms of determination of weight and rigidity of a shovel are received with known two and three frequencies of fluctuations of mechanical system.

Keywords: own frequencies, free fluctuations, turbine shovels with a bandage, the frequency equation, diagnosing, preservation of frequencies of fluctuations.

+ - About the Authors Click to collapse

G. F. Safina
Neftekamsk Branch of the Bashkir State University, Neftekamsk, Russia. E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

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