Conference item
A multirate variational approach to simulation and optimal control for flexible spacecraft
- Abstract:
- We propose an optimal control method for simultaneous slewing and vibration control of flexible spacecraft. Considering dynamics on different time scales, the optimal control problem is discretized on micro and macro time grids using a multirate variational approach. The description of the system and the necessary optimality conditions are derived through the discrete Lagrange-d’Alembert principle. The discrete problem retains the conservation properties of the continuous model and achieves high fidelity simulation at a reduced computational cost. Simulation results for a single-axis rotational maneuver demonstrate vibration suppression and achieve the same accuracy as the single rate method at reduced computational cost.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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Access Document
- Files:
-
-
(Preview, Accepted manuscript, 827.5KB, Terms of use)
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- Publication website:
- http://www.univelt.com/book=8194
Authors
- Publisher:
- American Astronautical Society
- Host title:
- Astrodynamics 2020
- Pages:
- 395-410
- Series:
- Advances in the Astronautical Sciences
- Series number:
- 175
- Publication date:
- 2021-09-22
- Acceptance date:
- 2020-09-01
- Event title:
- 2020 AAS/AIAA Astrodynamics Specialist Conference
- Event location:
- Virtual
- Event website:
- https://www.space-flight.org/docs/2020_summer/2020_summer.html
- Event start date:
- 2020-08-09
- Event end date:
- 2020-08-12
- ISSN:
-
0065-3438
- EISBN:
- 9780877036760
- ISBN:
- 9780877036753
- Language:
-
English
- Keywords:
- Pubs id:
-
1132876
- Local pid:
-
pubs:1132876
- Deposit date:
-
2020-09-19
Terms of use
- Copyright holder:
- American Astronautical Society
- Copyright date:
- 2021
- Rights statement:
- Copyright 2021 by American Astronautical Society.
- Notes:
- This conference paper was presented at the 2020 AAS/AIAA Astrodynamics Specialist Conference, 9-12 August 2020, Virtual event. This is the accepted manuscript version of the paper. The final version is available online from the American Astronautical Society at: http://www.univelt.com/book=8194
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