Finite-Time Spacecraft’s Soft Landing on Asteroids Using PD and Nonsingular Terminal Sliding Mode Control
Joint Authors
Li, Yuanchun
Liu, Keping
Liu, Fengxia
Wang, Shenquan
Source
Mathematical Problems in Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-01-22
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
This paper presents a continuous control law of probe, which consists of PD (proportional-derivative) controller and nonsingular terminal sliding mode controller for probe descending and landing phases, respectively, in the case of the asteroid irregular shape and low gravity.
The probe dynamic model is deduced in the landing site coordinate system firstly.
Then the reference trajectory based on optimal polynomial in open-loop state is designed, with the suboptimal fuel consumption.
Taking into account different characteristics of phases, PD controller and nonsingular terminal sliding mode controller can be employed in the descending phase and the landing phase, respectively, to track the designed reference trajectory.
The controller which used the corresponding control methods can meet the motion characteristics and requirements of each stage.
Finally simulation experiments are carried out to demonstrate the effectiveness of the proposed method, which can ensure the safe landing of probe and achieve continuous control.
American Psychological Association (APA)
Liu, Keping& Liu, Fengxia& Wang, Shenquan& Li, Yuanchun. 2015. Finite-Time Spacecraft’s Soft Landing on Asteroids Using PD and Nonsingular Terminal Sliding Mode Control. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1074010
Modern Language Association (MLA)
Liu, Keping…[et al.]. Finite-Time Spacecraft’s Soft Landing on Asteroids Using PD and Nonsingular Terminal Sliding Mode Control. Mathematical Problems in Engineering No. 2015 (2015), pp.1-10.
https://search.emarefa.net/detail/BIM-1074010
American Medical Association (AMA)
Liu, Keping& Liu, Fengxia& Wang, Shenquan& Li, Yuanchun. Finite-Time Spacecraft’s Soft Landing on Asteroids Using PD and Nonsingular Terminal Sliding Mode Control. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1074010
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1074010