Constrained oscillations and contact interaction of the structure, consisting of two parallel plates with internal set of local ribs, used in the theory of gyroscopes

Tatyana V. Yakovleva, Anton V. Krysko, Vadim S. Kruzhilin

Результат исследований: Материалы для журналаСтатья

Выдержка

The relevance of the study is caused by the need to develop algorithmic methods for improving the reliability and accuracy of gyroscopic devices, which are used in oil and gas industry. Strength, accuracy and resistance to high temperature of the sensors are extremely important while drilling, to control spatial orientation of wells and downhole objects. The aim of the work is to construct a mathematical model of the constrained oscillations and contact interaction of the structure consisting of two plates with the internal set of ribs and gaps between the elements, which will be used in the gyroscopes theory. To study such structural and nonlinear problems the authors have applied the methods of qualitative theory of differential equations, wavelet analysis, three methods (Wolf, Rosenstein, Kantz) for analyzing the sign of the highest Lyapunov exponent, numerical simulation using MATLAB software package. The solution was obtained by the Bubnov-Galerkin method in higher approximations in space coordinate and by the Runge-Kutta method of the 4th order of accuracy in time. Results. The authors studied the effect of the number of ribs between the plates on character of their oscillations and contact interaction with longitudinal loading on the top plate, and identified the scenarios of transition of the system from harmonic into a chaotic state. The paper deals with two tasks: 1) the inner set of ribs consists of two beams, 2) the inner set of ribs consists of three beams. It was revealed that in chaotic regime in both tasks the frequency intermittency phenomenon is observed, that is changing time intervals with different frequencies and different oscillation modes. The reliability of the solution is provided by application of different methods for determining the highest Lyapunov exponent, by comparing the results obtained by the Bubnov-Galerkin method and the finite difference method.

Язык оригиналаАнглийский
Страницы (с-по)107-115
Число страниц9
ЖурналBulletin of the Tomsk Polytechnic University, Geo Assets Engineering
Том327
Номер выпуска10
СостояниеОпубликовано - 1 янв 2016

Отпечаток

Gyroscopes
Galerkin methods
oscillation
Runge Kutta methods
Wavelet analysis
Gas industry
Galerkin method
Finite difference method
Software packages
MATLAB
Drilling
Oils
Differential equations
Mathematical models
Sensors
Computer simulation
wavelet analysis
gas industry
finite difference method
oil industry

ASJC Scopus subject areas

  • Materials Science (miscellaneous)
  • Fuel Technology
  • Geotechnical Engineering and Engineering Geology
  • Waste Management and Disposal
  • Economic Geology
  • Management, Monitoring, Policy and Law

Цитировать

Constrained oscillations and contact interaction of the structure, consisting of two parallel plates with internal set of local ribs, used in the theory of gyroscopes. / Yakovleva, Tatyana V.; Krysko, Anton V.; Kruzhilin, Vadim S.

В: Bulletin of the Tomsk Polytechnic University, Geo Assets Engineering, Том 327, № 10, 01.01.2016, стр. 107-115.

Результат исследований: Материалы для журналаСтатья

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