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Solving the Coriolis Vibratory Gyroscope Motion Equations by Means of the Angular Rate B-Spline Approximation

Author

Listed:
  • Mikhail Basarab

    (Computer Science and Control Systems Department, Bauman Moscow State Technical University, 105005 Moscow, Russia)

  • Boris Lunin

    (Chemistry Department, Lomonosov Moscow State University, 119991 Moscow, Russia)

Abstract

The exact solution of the movement equation of the Coriolis vibratory gyroscope (CVG) with a linear law of variation of the angular rate of rotation of the base is given. The solution is expressed in terms of the Weber functions (the parabolic cylinder functions) and their asymptotic representations. On the basis of the obtained solution, an analytical solution to the equation of the ring dynamics in the case of piecewise linear approximation of an arbitrary angular velocity profile on a time grid is derived. The piecewise linear solution is compared with the more rough piecewise constant solution and the dependence of the error of such approximations on the sampling step in time is estimated numerically. The results obtained make it possible to significantly reduce the number of operations when it is necessary to study long-range dynamics of oscillations of the system, as well as quantitatively and qualitatively control the convergence of finite-difference schemes for solving the movement equations of the Coriolis vibratory gyroscope.

Suggested Citation

  • Mikhail Basarab & Boris Lunin, 2021. "Solving the Coriolis Vibratory Gyroscope Motion Equations by Means of the Angular Rate B-Spline Approximation," Mathematics, MDPI, vol. 9(3), pages 1-9, February.
    • Handle: RePEc:gam:jmathe:v:9:y:2021:i:3:p:292-:d:491354
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