As they tumble through space, objects like spacecraft move in dynamical ways. Understanding and predicting the equations that represent that motion is critical to the safety and efficacy of spacecraft mission development. Kinetics: Modeling the Motions of Spacecraft trains your skills in topics like rigid body angular momentum and kinetic energy expression shown in a coordinate frame agnostic manner, single and dual rigid body systems tumbling without the forces of external torque, how differential gravity across a rigid body is approximated to the first order to study disturbances in both the attitude and orbital motion, and how these systems change when general momentum exchange devices are introduced.
Ce cours fait partie de la Spécialisation Spacecraft Dynamics and Control
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Spécialisation Spacecraft Dynamics and ControlUniversité du Colorado à BoulderÀ propos de ce cours
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Sous-titres : Français, Portugais (européen), Russe, Anglais, Espagnol
Dates limites flexibles
Réinitialisez les dates limites selon votre disponibilité.
Certificat partageable
Obtenez un Certificat lorsque vous terminez
100 % en ligne
Commencez dès maintenant et apprenez aux horaires qui vous conviennent.
Cours 2 sur 4 dans le
Niveau avancé
Approx. 21Â heures pour terminer
Anglais
Sous-titres : Français, Portugais (européen), Russe, Anglais, Espagnol
Offert par
Université du Colorado à Boulder
CU-Boulder is a dynamic community of scholars and learners on one of the most spectacular college campuses in the country. As one of 34 U.S. public institutions in the prestigious Association of American Universities (AAU), we have a proud tradition of academic excellence, with five Nobel laureates and more than 50 members of prestigious academic academies.
Programme de cours : ce que vous apprendrez dans ce cours
6Â heures pour terminer
Continuous Systems and Rigid Bodies
The dynamical equations of motion are developed using classical Eulerian and Newtonian mechanics. Emphasis is placed on rigid body angular momentum and kinetic energy expression that are shown in a coordinate frame agnostic manner. The development begins with deformable shapes (continuous systems) which are then frozen into rigid objects, and the associated equations are thus simplified.
6Â heures pour terminer
19 vidéos (Total 158 min)
7Â heures pour terminer
Torque Free Motion
The motion of a single or dual rigid body system is explored when no external torques are acting on it. Large scale tumbling motions are studied through polhode plots, while analytical rate solutions are explored for axi-symmetric and general spacecraft shapes. Finally, the dual-spinner dynamical system illustrates how the associated gyroscopics can be exploited to stabilize any principal axis spin.
7Â heures pour terminer
17 vidéos (Total 166 min)
2Â heures pour terminer
Gravity Gradients
The differential gravity across a rigid body is approximated to the first order to study how it disturbs both the attitude and orbital motion. The gravity gradient relative equilibria conditions are derived, whose stability is analyzed through linearization.
2Â heures pour terminer
7 vidéos (Total 77 min)
6Â heures pour terminer
Equations of Motion with Momentum Exchange Devices
The equations of motion of a rigid body are developed with general momentum exchange devices included. The development begins with looking at variable speed control moment gyros (VSCMG), which are then specialized to classical single-gimbal control moment devices (CMGs) and reaction wheels (RW).
6Â heures pour terminer
7 vidéos (Total 95 min)
Avis
- 5 stars83,76Â %
- 4 stars14,52Â %
- 3 stars1,70Â %
Meilleurs avis pour KINETICS: STUDYING SPACECRAFT MOTION
par MK28 août 2020
great lectures highly recommended for space enthusiasts
par O17 mai 2021
It's a well taught course that would otherwise have proved much more difficult.
par NB25 févr. 2019
excellent course content with knowledgeable professor. Challenging to learn and focused on both analytical theory and practical example.
par RS16 août 2020
Great teacher, great course. I recommend studying with the book since it's not an easy topic.
The first course was a bit better since there were more programming exercises to train.
À propos du Spécialisation Spacecraft Dynamics and Control
Spacecraft Dynamics and Control covers three core topic areas: the description of the motion and rates of motion of rigid bodies (Kinematics), developing the equations of motion that prediction the movement of rigid bodies taking into account mass, torque, and inertia (Kinetics), and finally non-linear controls to program specific orientations and achieve precise aiming goals in three-dimensional space (Control). The specialization invites learners to develop competency in these three areas through targeted content delivery, continuous concept reinforcement, and project applications.
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