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  4. Touchdown Dynamics and the Probability of Terrain Related Failure of Planetary Landing Systems : A Contribution to the Landing Safety Assessment Process
 
Zitierlink URN
https://nbn-resolving.de/urn:nbn:de:gbv:46-00104952-14

Touchdown Dynamics and the Probability of Terrain Related Failure of Planetary Landing Systems : A Contribution to the Landing Safety Assessment Process

Veröffentlichungsdatum
2015-11-20
Autoren
Witte, Lars  
Betreuer
Dittus, Hansjörg  
Gutachter
Oberst, Jürgen  
Zusammenfassung
Landing safety assessment is an integral element of the planning of a landing mission. This thesis contributes to such assessment with the modelling and deduction of the functional limits of a legged landing system and its terrain-related failure probabilities. A mathematical method has been developed to determine these terrain-related failure probabilities. The lander's touchdown dynamics is represented by a high-fidelity numerical multibody simulation which is validated by experimental data from a dedicated test campaign. The analysis of the terrain-related failure probabilities remains incomplete without knowledge about the geotechnical properties of the landing site. This information is obtained from a landing site characterization. An analysis step extracts this information from high resolution digital terrain models under consideration of the specific baselength determined by the landing platform's footprint. A robotic lunar landing mission is used as application case study.
Schlagwörter
Landing safety assessment

; 

landing site characterization

; 

planetary exploration

; 

touchdown dynamics

; 

terrain-related failure

; 

multibody landing simulation
Institution
Universität Bremen  
Fachbereich
Fachbereich 04: Produktionstechnik, Maschinenbau & Verfahrenstechnik (FB 04)  
Dokumenttyp
Dissertation
Zweitveröffentlichung
Nein
Sprache
Englisch
Dateien
Lade...
Vorschaubild
Name

00104952-1.pdf

Size

23.26 MB

Format

Adobe PDF

Checksum

(MD5):e5765a1455dacab0ad866a68bc5e9e41

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