Data "Analysis of preliminary numerical modeling of compensation of microvibrations and nonlinear thermomechanical effects in the piezoelectric stabilization system of space monitoring equipment"
Description
Within the framework of the activities of the educational and scientific laboratory of the Department of Space Engineering of Kyiv Polytechnic, mathematical models of active vibration damping systems of various prototypes of aerospace objects are being studied. Mathematical models are implemented in the Python programming environment using numerical analysis and visualization libraries. To verify the adequacy and research of the mathematical apparatus, a virtual training stand with a set of variable input data has been created. The mathematical model takes into account the law of conservation of angular momentum and the relationship between the motion of the scientific payload and the body of the prototype spacecraft. The numerical solution of the differential equation of the nonlinear component of Buk-Ven adequately reproduces the loop of energy losses (non-coercive phase delay) between the applied voltage and deformation. Preliminary numerical thermo-mechanical modeling allowed us to evaluate and visually demonstrate the stability and parametric differences of various control loop options in the operational range of changes in the external temperature values. The obtained graphs demonstrate a satisfactory convergence of the mathematical description to real physical processes in piezoceramics.