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學生對 科罗拉多大学波德分校 提供的 Spacecraft Dynamics Capstone: Mars Mission 的評價和反饋

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40 個評分

課程概述

The goal of this capstone spacecraft dynamics project is to employ the skills developed in the rigid body Kinematics, Kinetics and Control courses. An exciting two-spacecraft mission to Mars is considered where a primary mother craft is in communication with a daughter vehicle in another orbit. The challenges include determining the kinematics of the orbit frame and several desired reference frames, numerically simulating the attitude dynamics of the spacecraft in orbit, and implementing a feedback control that then drives different spacecraft body frames to a range of mission modes including sun pointing for power generation, nadir pointing for science gathering, mother spacecraft pointing for communication and data transfer. Finally, an integrated mission simulation is developed that implements these attitude modes and explores the resulting autonomous closed-loop performance. Tasks 1 and 2 use three-dimensional kinematics to create the mission related orbit simulation and the associated orbit frames. The introductory step ensures the satellite is undergoing the correct motion, and that the orbit frame orientation relative to the planet is being properly evaluated. Tasks 3 through 5 create the required attitude reference frame for the three attitude pointing modes called sun-pointing, nadir-pointing and GMO-pointing. The reference attitude frame is a critical component to ensure the feedback control drives the satellite to the desired orientation. The control employed remains the same for all three pointing modes, but the performance is different because different attitude reference frames are employed. Tasks 6 through 7 create simulation routines to first evaluate the attitude tracking error between a body-fixed frame and a particular reference frame of the current attitude mode. Next the inertial attitude dynamics is evaluated through a numerical simulation to be able to numerically analyze the control performance. Tasks 8-11 simulate the closed-loop attitude performance for the three attitude modes. Tasks 8 through 10 first simulate a single attitude at a time, while tasks 11 develops a comprehensive attitude mission simulation which considers the attitude modes switching autonomously as a function of the spacecraft location relative to the planet....

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1 - Spacecraft Dynamics Capstone: Mars Mission 的 13 個評論(共 13 個)

創建者 Anthony Z

2021年4月17日

創建者 Nick D

2020年8月31日

創建者 Luke M

2020年9月29日

創建者 Jeff L

2019年5月11日

創建者 Luis G G B

2021年4月2日

創建者 Basel O

2020年6月23日

創建者 Samuel L

2020年8月2日

創建者 Sam W

2020年4月2日

創建者 Erick A M D

2021年10月1日

創建者 Aldo A

2022年4月17日

創建者 Darren M

2021年6月2日

創建者 Sergio A R V

2021年4月28日

創建者 Azzeddine K

2021年2月16日