Touchdown Dynamics and the Probability of Terrain Related Failure of Planetary Landing Systems : A Contribution to the Landing Safety Assessment Process
File | Description | Size | Format | |
---|---|---|---|---|
00104952-1.pdf | 23.81 MB | Adobe PDF | View/Open |
Other Titles: | Aufsetzdynamik und die Wahrscheinlichkeit geländebedingten Versagens planetarer Landesysteme : Ein Beitrag zur Landesicherheitsbewertung | Authors: | Witte, Lars ![]() |
Supervisor: | Dittus, Hansjörg | 1. Expert: | Dittus, Hansjörg | Experts: | Oberst, Jürgen | Abstract: | 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. |
Keywords: | Landing safety assessment; landing site characterization; planetary exploration; touchdown dynamics; terrain-related failure; multibody landing simulation | Issue Date: | 20-Nov-2015 | Type: | Dissertation | Secondary publication: | no | URN: | urn:nbn:de:gbv:46-00104952-14 | Institution: | Universität Bremen | Faculty: | Fachbereich 04: Produktionstechnik, Maschinenbau & Verfahrenstechnik (FB 04) |
Appears in Collections: | Dissertationen |
Page view(s)
404
checked on Apr 2, 2025
Download(s)
79
checked on Apr 2, 2025
Google ScholarTM
Check
Items in Media are protected by copyright, with all rights reserved, unless otherwise indicated.