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Scheme-Parametric Optimization by the Criterion of Electric Consumption of Autonomous One-Rock Electrohydraulic Steering Actuators of Space Rocket Packs

  • SYSTEMS ANALYSIS AND OPERATIONS RESEARCH
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Abstract

The paper presents the results of scheme-parametric optimization by the criterion of electric consumption of autonomous one-rock electrohydraulic steering actuators (SAs) with a negative overlap of throttle ports of their electrohydraulic amplifiers (EHAs) by spool plungers. The optimization rests on the results of investigating the effects of structural and regulatory parameters of EHAs on static characteristics of SAs and iterative methods of static analysis of SAs. It is substantiated that as the basic criterion for optimizing such SAs, we can take the parameter of their minimum electric consumption in providing all the requirements for static characteristics imposed on these SAs. As a result of the calculations of the static characteristics of SAs, it is shown that the final variants of SAs of both schemes have very close values of electric consumption. Therefore, for optimizing it is necessary to use additional nonformalized properties of the variants under consideration. As a result of the analysis of static characteristics, it is established that the variant of a SA with a four-throttle EHA does not possess static stability; this is a destabilizing factor, which can cause self-oscillations in a steering servo. The best variant is a SA with a two-throttle EHA.

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Correspondence to O. B. Belonogov.

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Translated by L. Kartvelishvili

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Belonogov, O.B. Scheme-Parametric Optimization by the Criterion of Electric Consumption of Autonomous One-Rock Electrohydraulic Steering Actuators of Space Rocket Packs. J. Comput. Syst. Sci. Int. 59, 406–414 (2020). https://doi.org/10.1134/S1064230720030028

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  • DOI: https://doi.org/10.1134/S1064230720030028

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