Synthesis of the control algorithms based on varying structures allows increased operating effectiveness of the control systems. The paper presents an alternative combined control method for angular velocities stabilization of an axisymmetric solid based on optimal synthesis using the joint maximum principle and the predicting model method. The control structure transition procedure is implemented using fuzzy logic methods. The proposed approach effectiveness was verified using modeling results.
Aim: Estimation of the accuracy of the numerical method relative to the analytical solution.
Methods: This article reports on studies of the accuracy of numerical calculations based on the finite element method. The variational scheme of the method is considered.
Results: The dependences of errors on the number of simplexes used are obtained and analyzed. The authors noted ways to further improve accuracy.
Conclusion: The article gives recommendations on the possible application of the finite element method in solving problems of calculating the electromagnetic fields of real objects.
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