ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

Acceleration control-aided APDG law for powered descent landing in atmospheric conditions

Siddhardha, K and Manathara, JG (2022) Acceleration control-aided APDG law for powered descent landing in atmospheric conditions. In: 7th International Conference on Advances in Control and Optimization of Dynamical Systems, ACODS 2022, 22 - 25 February 2022, Silchar, Assam, pp. 492-497.

ACODS 2022_55-1_492-497_2022.pdf - Published Version

Download (540kB) | Preview
Official URL: https://doi.org/10.1016/j.ifacol.2022.04.081


Apollo powered descent guidance (APDG) law enabled Apollo lunar module to land on the Moon successfully. Since then, in the past 50 years, APDG and several of its variants have been used in numerous planetary landing studies and missions. As its formulation does not consider drag force, the APDG law is typically used for powered descent landing in rarefied environments like the Moon and Mars. In this paper, we extend the application of the APDG law to atmospheric environments by aiding it with an acceleration controller. The proposed acceleration control strategy not only compensates for the estimated aerodynamic drag, but also mitigates the uncertainties in the thrust produced, thus maintaining the desired acceleration. To demonstrate the efficacy, we provide results of simulated powered descent landing of a reusable launch vehicle (RLV) on Earth using the proposed acceleration control strategy along with the APDG law.

Item Type: Conference Paper
Publication: IFAC-PapersOnLine
Publisher: Elsevier B.V.
Additional Information: The copyright for this article belongs to the Authors.
Keywords: Acceleration control; Apollo powered descent guidance; atmospheric flight; powered descent landing; reusable launch vehicles
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited: 05 Jul 2022 11:20
Last Modified: 05 Jul 2022 11:20
URI: https://eprints.iisc.ac.in/id/eprint/74141

Actions (login required)

View Item View Item