Back to Search
Start Over
Virtual Trajectory Augmented Landing Control Based on Dual Quaternion for Lunar Lander
- Source :
- Journal of Guidance, Control, and Dynamics. 39:2044-2057
- Publication Year :
- 2016
- Publisher :
- American Institute of Aeronautics and Astronautics (AIAA), 2016.
-
Abstract
- A pinpoint soft landing with a low touchdown velocity is critical for a lunar lander in the terminal landing phase, particularly with respect to scientific exploration missions. However, the main descent thruster of the lander is usually equipped on one side along the body axis, whereas reaction thrusters for attitude control are fixed in three axes. This causes the translational dynamics and the rotational dynamics of the lunar lander to be mutually coupled. In this study, a new force–torque sequential control law is introduced to resolve the coupling effect. To further improve the coupled motion, a virtual landing trajectory augmented control law is designed. The virtual trajectory is represented as a virtual quaternion and is augmented as a command to the lander’s position update using the dual quaternion. A combined augmented landing control algorithm is newly proposed to incorporate the virtual trajectory commands into the force–torque sequential control law. Numerical simulation results with some ca...
- Subjects :
- 020301 aerospace & aeronautics
0209 industrial biotechnology
Engineering
Soft landing
business.industry
Applied Mathematics
Aerospace Engineering
Touchdown
02 engineering and technology
Physics::Geophysics
Attitude control
020901 industrial engineering & automation
0203 mechanical engineering
Space and Planetary Science
Control and Systems Engineering
Control system
Trajectory
Electrical and Electronic Engineering
Aerospace engineering
business
Dual quaternion
Quaternion
Lunar lander
Subjects
Details
- ISSN :
- 15333884 and 07315090
- Volume :
- 39
- Database :
- OpenAIRE
- Journal :
- Journal of Guidance, Control, and Dynamics
- Accession number :
- edsair.doi...........d4f2107cc9e538e60e5fb1bdc081a51a