Method of Taking into Account Influence of Thermal Shock on Dynamics of Small Satellite and its Use in Analysis of Microaccelerations

Sedelnikov, A. V.; Serdakova, Valeria; Nikolaeva, Alexandra

doi:10.1007/s12217-023-10049-w

Cited by 5 publications

(4 citation statements)

References 30 publications

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“…For some target tasks, this error is high not only in the oriented flight mode. Thus, when implementing gravity-sensitive processes, it is necessary to comply with the requirements for microaccelerations [21][22][23][24]. Consider the error in determining the control moment.…”

Section: Estimation Of the Error In Determining The Angular Velocity ...mentioning

confidence: 99%

Investigation of the Applicability of the Boer Formula for Estimating the Angular Velocity of Rotation of a Small Spacecraft by Measuring the Components of the Induction Vector of the Earth's Magnetic Field in Evaluating Micro-Accelerations and Forming Control Laws

Sedelnikov,

Skidanov,

Taneeva

et al. 2024

Preprint

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The paper presents studies on the correctness of the application of the simplified Boer formula for estimating the components of the angular velocity vector of the spacecraft using the example of the small ISOI spacecraft (SXC3-219). The simplification consists in neglecting the total derivative of the induction vector of the Earth's magnetic field in time compared to the local derivative. This is due to the fact that measurements are carried out quite often. Therefore, the magnetic induction vector in two adjacent dimensions can be considered unchanged. The aim of the work is to estimate the error in determining the angular velocity due to this simplification. The presented results show the admissibility of neglecting the full derivative, provided that the measurement frequency is sufficient. Reference metrological tests were carried out, in which a gyroscopic angular velocity vector meter was selected as the reference measuring instrument. The errors in the estimates of micro-accelerations and the control moment, which are a consequence of the error in determining the angular velocity, are calculated.

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Section: Estimation Of the Error In Determining The Angular Velocity ...mentioning

confidence: 99%

Investigation of the Applicability of the Boer Formula for Estimating the Angular Velocity of Rotation of a Small Spacecraft by Measuring the Components of the Induction Vector of the Earth's Magnetic Field in Evaluating Micro-Accelerations and Forming Control Laws

Sedelnikov,

Skidanov,

Taneeva

et al. 2024

Preprint

Self Cite

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“…[6,7]) and graphs of the desired and achievable values of microaccelerations (Figures 1-3), which are available in the literature [8][9][10][11][12][13][14][15][16][17][18]. MGIM on the MIR space station [14]; c) at ISS [15]; d) MAIS on Tiangong-2 [16]; e) MAIS on Tiangong [17] Numerous studies (for example, [1,3,9,13,14,[19][20][21][22]) show that during directed crystallization, the field of microaccelerations of the internal environment of the spacecraft creates motion of convective type. They contribute to the capture of non-metallic impurities in melts and the formation of several crystallization centers.…”

Section: Analysis Of Micro-acceleration Requirementsmentioning

confidence: 99%

Analysis of the requirements for microaccelerations and the design appearance of a small spacecraft for technological purposes

Taneeva

2023

E3S Web of Conf.

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The article analyzes the possibility of implementing gravity-sensitive technological processes on board a small technological spacecraft. The requirements for microaccelerations imposed by the physical features of the flow of gravitation-sensitive processes are presented. The advantages and disadvantages of using small spacecraft for space technologies are analyzed. The design image of a small spacecraft for technological purposes is presented.

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“…In the second equation of System (1), it is assumed that the deflection in the framework of the two-dimensional problem can be represented as u z = u z (x, t) [53]. It is a Sophie Germain equation for thin plates [52,54]. Its satisfaction is required only in the middle of the plate within the framework of this statement.…”

Section: The Problem Of Thermoelasticitymentioning

confidence: 99%

“…where k is the number of flexible elements; m 1 is the mass of one flexible element; and .. u z (x, t) is the second total derivative of the deflection with respect to time. Let us use the expression obtained in [54] for deflections in the framework of the two-dimensional model of thermoelasticity (Expression ( 16) [54]):…”

Section: Evaluation Of Disturbing Factorsmentioning

confidence: 99%

Investigation of Perturbations Arising from Temperature Shock with a Symmetrical Arrangement of Flexible Elements of a Small Spacecraft

Bormotov

Orlov

2023

Symmetry

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This paper investigates the effect of a temperature shock on a small spacecraft with symmetrically arranged flexible elements. A two-dimensional thermoelasticity problem is posed. The disturbing effect of temperature shock on a small spacecraft has been determined. The assessment of the main disturbing factors arising from the temperature shock of flexible elements of a small spacecraft was carried out. Approximate dependences were obtained for the components of the displacement vector of the flexible element points. Numerical simulation was carried out for the symmetric scheme of the small spacecraft with two and four flexible elements. The dependence of the inertia force on temperature shock for the simulated small spacecraft at various initial deflections of the flexible element was constructed. Conclusions were drawn about the significance of the temperature shock influence on the dynamics of a small spacecraft. The results obtained were compared with the results of other studies and can be used in solving problems of remote sensing of the Earth and the implementation of gravity-sensitive processes on board small spacecraft.

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Method of Taking into Account Influence of Thermal Shock on Dynamics of Small Satellite and its Use in Analysis of Microaccelerations

Cited by 5 publications

References 30 publications

Investigation of the Applicability of the Boer Formula for Estimating the Angular Velocity of Rotation of a Small Spacecraft by Measuring the Components of the Induction Vector of the Earth's Magnetic Field in Evaluating Micro-Accelerations and Forming Control Laws

Investigation of the Applicability of the Boer Formula for Estimating the Angular Velocity of Rotation of a Small Spacecraft by Measuring the Components of the Induction Vector of the Earth's Magnetic Field in Evaluating Micro-Accelerations and Forming Control Laws

Analysis of the requirements for microaccelerations and the design appearance of a small spacecraft for technological purposes

Investigation of Perturbations Arising from Temperature Shock with a Symmetrical Arrangement of Flexible Elements of a Small Spacecraft

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