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Design and analysis of the feet and it’s configuration used for the Heat Flow Property Package Instrument (HP3) on-board the Mars Mission InSight

Reershemius, Siebo (2020) Design and analysis of the feet and it’s configuration used for the Heat Flow Property Package Instrument (HP3) on-board the Mars Mission InSight. In: 2020 IEEE Aerospace Conference, AERO 2020. IEEE Aerospace Conference, 2020-03-07 - 2020-03-14, Big Sky, Montana, USA. doi: 10.1109/AERO47225.2020.9172457. ISBN 978-172812734-7. ISSN 1095-323X.

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Abstract

The HP3 instrument measures the thermal flux through the Martian crust using a penetration probe. Launched on the InSight mission in 2018, HP3 was deployed for penetration activities in the beginning of 2019. This paper shortly introduces the HP3 instrument and shows the design and analysis process of the feet pattern and of each foot. The pattern of the feet is driven by the accommodation of the instrument on the lander and the need to ensure stability of the instrument on the surface. A four-feet design was chosen as it can be fitted very good into the available volume. During operation, the instrument is vulnerable to tipping as the landing site can be tilted and partially covered with rocks and depressions. Therefore it is shown analytically, that the instrument is stable, although it might be partially located on rocks or depression in combination with a tilted landing site. The new design of the feet is introduced and compared to a flatplate foot. The capability of each design to produce slippage resistance is estimated analytically. The analytical estimations show, that the chosen flight-design generates more slippage resistance than the flat-plate approach. Even though the analytical estimations do not cover all effects generating slippage resistance.

Item URL in elib:https://elib.dlr.de/134553/
Document Type:Conference or Workshop Item (Speech)
Title:Design and analysis of the feet and it’s configuration used for the Heat Flow Property Package Instrument (HP3) on-board the Mars Mission InSight
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Reershemius, SieboUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:March 2020
Journal or Publication Title:2020 IEEE Aerospace Conference, AERO 2020
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
DOI:10.1109/AERO47225.2020.9172457
ISSN:1095-323X
ISBN:978-172812734-7
Status:Published
Keywords:InSight HP3 Foot-Design
Event Title:IEEE Aerospace Conference
Event Location:Big Sky, Montana, USA
Event Type:international Conference
Event Start Date:7 March 2020
Event End Date:14 March 2020
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Project InSight - HP3
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Mechanic and Thermal Systems
Deposited By: Reershemius, Siebo
Deposited On:31 Mar 2020 09:24
Last Modified:24 Apr 2024 20:37

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