elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

The Shell Lander Concept for Exploring Medium-Size Airless Bodies

Grimm, Christian and Witte, Lars and Schröder, Silvio and Wickhusen, Kai (2018) The Shell Lander Concept for Exploring Medium-Size Airless Bodies. Acta Astronautica. Elsevier. ISSN 0094-5765

[img] PDF - Registered users only
2MB

Abstract

Once addressed as a side topic in planetary exploration, the investigation of small solar system bodies has now become one of the corner stones in the international science community in order to study the formation of the solar system and the evolution of life within. For rendezvous spacecraft, small carry-on landers have proven to be valuable assets, and to have a positive impact on the overall mission cost, by avoiding additional complexity of the main satellite and transferring the risk of close surface maneuvers entirely or at least to some extend to an independent deployable system. However, carry-on landers have been designed currently to land on very small bodies only, but medium-size class objects between diameters of 10 - 50 km are of great interest as well. In this paper we classify carry-on landers with respect to their touchdown and operational strategy, evaluate the constraints of ballistic deployments for different target bodies as well as identify the niche for using simple honeycomb impact dampers compared to optional retro-propulsion systems. Further, we introduce the system design of an attitude-controlled Shell Lander using a generic instrument carrier attached to a single ejectable crash-pad with stabilizing capability to protect the instrument carrier from structural damage, limit internal shock loads for sensitive payloads as well as reduce the amount of bounces on the surface. Finally, we present a mission architecture for a reference case to the Martian moon Phobos as well as provide a proof of concept based on laboratory impact tests and a multi-body simulation to analyze touchdown dynamics including terrain interaction, shell-shedding and bouncing.

Item URL in elib:https://elib.dlr.de/124527/
Document Type:Article
Title:The Shell Lander Concept for Exploring Medium-Size Airless Bodies
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Grimm, ChristianChristian.Grimm (at) dlr.deUNSPECIFIED
Witte, LarsLars.Witte (at) dlr.dehttps://orcid.org/0000-0002-3921-2524
Schröder, SilvioSilvio.Schroeder (at) dlr.deUNSPECIFIED
Wickhusen, KaiKai.Wickhusen (at) dlr.deUNSPECIFIED
Date:2018
Journal or Publication Title:Acta Astronautica
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Publisher:Elsevier
ISSN:0094-5765
Status:Published
Keywords:Asteroid Landing, Payload Delivery, Impact Energy Absorption, Shell Lander, Ejectable Crash-Pad
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Vorhaben Landetechnologien
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Land and Exploration Technology
Deposited By: Grimm, Christian
Deposited On:11 Dec 2018 09:45
Last Modified:02 Jul 2019 10:52

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.