An algorithm for controlling the spatial motion of a spacecraft with an imperfectly reflecting solar sail based on the laws of locally optimal control for Earth — Mars heliocentric flight

Khabibullin, R. M.; Starinova, Olga

doi:10.18698/2308-6033-2020-8-2006

Cited by 4 publications

(1 citation statement)

References 4 publications

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“…Для моделирования гелиоцентрического участка перелёта Земля -Меркурий космического аппарата с солнечным парусом используются уравнения движения в плоской полярной системе координат. Управление движением осуществляется с применением двух локальнооптимальных законов управления, которые обеспечивают наиболее быстрое изменение оскулирующих элементов орбиты: большой полуоси и эксцентриситета [16]. Номинальная программа управления движением солнечного паруса определяется углом установки, который рассчитывается по формуле…”

Section: математическая модельunclassified

Optical characteristics of a multilayer solar sail and their effect on its heliocentric motion

Rozhkov¹

2023

VESTNIK of Samara University. Aerospace and Mechanical Engineer

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The purpose of this work is to determine the influence of the optical characteristics of a thin multilayer solar sail on its orbital motion. First of all, the influence of the coefficients of reflection, scattering and absorption is investigated. These coefficients are computed on the basis of a mathematical model of the optical characteristics of a multilayer epitaxial thin film which is a solar sail itself. The paper considers the effect of temperature changes and sail surface degradation on its optical properties. Modeling of changes in optical characteristics is carried out drawing on an example of heliocentric flight from the Earth to Mercury applying locally optimal control laws. Applying the transfer matrix method and considering the distribution of solar spectral radiation optical parameters for two distinct constructions of a solar sail were obtained (aluminum and silver front coating).

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Section: математическая модельunclassified

Optical characteristics of a multilayer solar sail and their effect on its heliocentric motion

Rozhkov¹

2023

VESTNIK of Samara University. Aerospace and Mechanical Engineer

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A Model Problem of Motion along the Handrail Constraint by a Solar Sail

Vaskova,

Rodnikov

2024

Cosmic Res

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Non-coplanar interplanetary flight simulation considering motion relative to the center of mass peculiarities of solar sail spacecraft

Khabibullin

Starinova

2020

S&T

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The paper is devoted to the non-coplanar interplanetary Earth–Venus flight of a spacecraft equipped with a non-perfectly reflecting solar sail, the magnitude and direction of acceleration from which is calculated taking into account specular and diffuse reflections, absorption and transmission of photons by the surface of the solar sail. The goal of the heliocentric motion is to transfer the solar sail spacecraft into the Hill sphere of Venus with zero hyperbolic excess of speed. A feature of the paper is the study of the motion of a non-perfectly reflecting solar sail spacecraft taking into account the motion relative to the center of mass. The problem is divided into three stages. At the first stage, a nominal program for controlling the motion of the spacecraft center of mass is formed. At the second stage, sufficient angular velocities are determined to ensure the obtained nominal control program and the parameters of the spacecraft controls – thin-film controls located along the perimeter of the solar sail – are calculated. The operating principle of the thin-film controls is quite simple. When the voltage applied to the thin-film controls changes, they become transparent or opaque, there is a difference in the normal components of the light pressure forces, which provides a control torque for changing the orientation of the spacecraft in space. At the third stage, the joint motion of the center of mass and relative to the center of mass of the spacecraft is simulated to demonstrate the feasibility of the obtained control program. As a result, a comparison is made of non-coplanar interplanetary Earth–Venus flights with and without thin-film control elements.

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An algorithm for controlling the spatial motion of a spacecraft with an imperfectly reflecting solar sail based on the laws of locally optimal control for Earth — Mars heliocentric flight

Cited by 4 publications

References 4 publications

Optical characteristics of a multilayer solar sail and their effect on its heliocentric motion

Optical characteristics of a multilayer solar sail and their effect on its heliocentric motion

A Model Problem of Motion along the Handrail Constraint by a Solar Sail

Non-coplanar interplanetary flight simulation considering motion relative to the center of mass peculiarities of solar sail spacecraft

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