Slosh dynamics coupled with spacecraft attitude dynamics. II - Orbital environment application

Autor:	Y. M. Chi, Y. T. Long, R. J. Hung
Rok vydání:	1996
Předmět:	Condensed Matter::Quantum Gases Physics Spacecraft business.industry Slosh dynamics Aerospace Engineering Mechanics Impulse (physics) Capillary number Attitude control Amplitude Space and Planetary Science Torque Aerospace engineering business Superfluid helium-4
Zdroj:	Journal of Spacecraft and Rockets. 33:582-593
ISSN:	1533-6794 0022-4650
DOI:	10.2514/3.26803
Popis:	Coupling of slosh dynamics within a partially filled rotating Dewar of superfluid helium II with spacecraft attitude dynamics is investigated in response to environmental disturbances including 1) lateral impulses, 2) gravity gradient, and 3) g-jitter forces. The purpose of this study is to investigate 1) how a rotating bubble of superfluid helium II reacts to the various environmental disturbances in conjunction with spacecraft attitude dynamics, 2) how amplitudes of slosh reaction forces and torques are induced and are activating on the Dewar coupled with attitude dynamics in response to impulse and environmental disturbances, and 3) how spacecraft translational displacement, velocity, and acceleration deviating from normal spacecraft operation are induced by the slosh dynamics driven by these disturbances. The numerical computation of slosh dynamics is based on a rotational frame, whereas the attitude dynamics is based on a nonrotational frame. The results show that major contributions to attitude dynamics are driven by the coupling with slosh dynamics. Not considering the effect of slosh dynamics acting on the spacecraft may lead to the wrong results for the development of guidance and attitude control techniques.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::de43f724dabf3a3978a5d09fe80fb719 https://doi.org/10.2514/3.26803 Zobrazit plný text záznamu