This course trains you in the skills needed to program specific orientation and achieve precise aiming goals for spacecraft moving through three dimensional space. First, we cover stability definitions of nonlinear dynamical systems, covering the difference between local and global stability. We then analyze and apply Lyapunov's Direct Method to prove these stability properties, and develop a nonlinear 3-axis attitude pointing control law using Lyapunov theory. Finally, we look at alternate feedback control laws and closed loop dynamics.
Этот курс входит в специализацию ''Специализация Spacecraft Dynamics and Control'
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Специализация Spacecraft Dynamics and ControlКолорадский университет в БоулдереОб этом курсе
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Курс 3 из 4 в программе
Продвинутый уровень
Прибл. 31 час на выполнение
Английский
Субтитры: Французский, Португальский (Европа), Русский, Английский, Испанский
Гибкие сроки
Назначьте сроки сдачи в соответствии со своим графиком.
Сертификат, ссылками на который можно делиться с другими людьми
Получите сертификат по завершении
100% онлайн
Начните сейчас и учитесь по собственному графику.
Курс 3 из 4 в программе
Продвинутый уровень
Прибл. 31 час на выполнение
Английский
Субтитры: Французский, Португальский (Европа), Русский, Английский, Испанский
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Колорадский университет в Боулдере
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.
Программа курса: что вы изучите
4 ч. на завершение
Nonlinear Stability Definitions
Discusses stability definitions of nonlinear dynamical systems, and compares to the classical linear stability definitions. The difference between local and global stability is covered.
4 ч. на завершение
12 видео ((всего 67 мин.))
5 ч. на завершение
Overview of Lyapunov Stability Theory
Lyapunov's direct method is employed to prove these stability properties for a nonlinear system and prove stability and convergence. The possible function definiteness is introduced which forms the building block of Lyapunov's direct method. Convenient prototype Lyapunov candidate functions are presented for rate- and state-error measures.
5 ч. на завершение
14 видео ((всего 129 мин.))
11 ч. на завершение
Attitude Control of States and Rates
A nonlinear 3-axis attitude pointing control law is developed and its stability is analyized using Lyapunov theory. Convergence is discussed considering both modeled and unmodeled torques. The control gain selection is presented using the convenient linearized closed loop dynamics.
11 ч. на завершение
8 видео ((всего 82 мин.))
10 ч. на завершение
Alternate Attitude Control Formulations
Alternate feedback control laws are formulated where actuator saturation is considered. Further, a control law is presented that perfectly linearizes the closed loop dynamics in terms of quaternions and MRPs. Finally, the 3-axis Lyapunov attitude control is developed for a spacecraft with a cluster of N reaction wheel control devices.
10 ч. на завершение
6 видео ((всего 97 мин.))
Рецензии
- 5 stars81,66 %
- 4 stars10 %
- 3 stars5 %
- 2 stars3,33 %
Лучшие отзывы о курсе CONTROL OF NONLINEAR SPACECRAFT ATTITUDE MOTION
от партнера MA29 мая 2019 г.
Excellent course! Enjoyed it a lot. Learnt a lot as well. Thank you.
от партнера DA18 сент. 2020 г.
Excellent course but it could have been smoother if the instructor kept himself in loop with people doing the course
от партнера SH11 сент. 2020 г.
Thanks Prof Schaub, that was a wonder of a course! Learned so much and still want to proceed :)
от партнера SD3 февр. 2018 г.
Excellent teaching from Professor Schaub ! Course has been very well organised and touches on the important aspects of nonlinear control. Looking forward to more courses from you. Thank you !
Специализация Spacecraft Dynamics and Control: общие сведения
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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