USE OF INFORMATION ABOUT STATE VECTOR OF EXECUTIVE DEVICE IN STABILIZING SYSTEM OF A ROCKET ROTATION MOTION
Науковий журнал «Радіоелектроніка, інформатика, управління»
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USE OF INFORMATION ABOUT STATE VECTOR OF EXECUTIVE DEVICE IN STABILIZING SYSTEM OF A ROCKET ROTATION MOTION |
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Avdejev, V. V.; Professor of O. Gontchar Dniprovsk National University, Dnipro, Ukraine |
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stabilization of motion; state vector; law of control |
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Context. A method for obtaining estimates of the dependence of stability factor and reduced work during the transient process<br />for compensation of a constant disturbing acceleration on the presence in law of control data about current kinematic parameters of<br />the executive device under condition of ensuring a prescribed static error is developed. It will give a possibility to take decision about<br />level of complexity for appropriate units in stabilizing system.<br />Objective. The purpose of the research is to estimate the influence of the law of control reduction by means of exclusion from<br />one the data about state vector of the executive device on requirements to its power and stability factor.<br />Method. A linear stationary in the vicinity of a certain point of the trajectory model of a plane rotational motion of a rocket for<br />space purposes has been adopted, with taking into account the inertia of the executive device. Estimation of the stability factor is<br />carried out on the plane of the roots of the characteristic polynomial and two coefficients of the law of control. Divided to the square<br />of constant perturbation acceleration, the work of the executive device is determined by analytical solution of the differential<br />equations of perturbed rotational motion in one of the stabilization planes. For statically stable and unstable rocket the dependence<br />examples of the named performances on coefficients of the law of control by coordinates of the state vector are made.<br />Results. For the application of the rocket for space purposes for the first time the dependence of the named indices of stabilizing<br />system on availability in the law of control data about angle of rotation of steering gear and its velocity is established.<br />Conclusions. It is proven the ability of improvement the stabilizing system by means of inclusion in law of control kinematic parameters<br />of the executive device from the point of view of such performances as a stability factor and energy costs during transient<br />processes. |
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Zaporizhzhya National Technical University 2018-12-07 16:07:43 |
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application/pdf http://ric.zntu.edu.ua/article/view/150030 |
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Radio Electronics, Computer Science, Control; No 3 (2018): Radio Electronics, Computer Science, Control |
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uk |
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Copyright (c) 2018 V. V. Avdejev |
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