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1 +Amadee-20-TUMBLEWEED-JRP
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1 +AMADEE-20.WebHome
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1 -XWiki.dgschliesser
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1 +=== Details ===
2 +
3 +|**Acronym**|TUMBLEWEED-JRP
4 +|**Description**|Tumbleweed is the concept of a spherical rover to be
5 +deployed on Mars.
6 +|**Principal Investigator (PI)**|(((
7 +Julian Rothenbuchner | [[julian@teamtumbleweed.eu>>mailto:julian@teamtumbleweed.eu]]
8 +)))
9 +|**Organisation** |University of Technology, Vienna
10 +|**Co-Investigators**|(((
11 +Moritz Stephan, Stanford University; Wurlitzergasse 93/23, 1170 Vienna
12 +E-mail: [[moritz@teamtumbleweed.eu>>mailto:moritz@teamtumbleweed.eu]]
13 +
14 +Dominik Schmidt, University of Technology Vienna; Hietzinger Hauptstr. 69/3, 1130 Wien, :
15 +E-mail: [[dominik@teamtumbleweed.eu>>mailto:dominik@teamtumbleweed.eu]]
16 +
17 +Amelie Finan, University of Vienna; Bernhard Schilcher Straße 18, 2000 Stockerau
18 +E-mail: [[amelie@teamtumbleweed.eu>>mailto:amelie@teamtumbleweed.eu]]
19 +
20 +Josef E. Pürmayr, Sir Karl Popper school; Wiedner Gürtel 68, 1040 Vienna;
21 +E-mail: [[josef@teamtumbleweed.eu>>mailto:josef@teamtumbleweed.eu]]
22 +
23 +
24 +
25 +)))
26 +
27 +=== Summary ===
28 +
29 +[[image:1628955738683-845.png]]
30 +
31 +Tumbleweed is the concept of a spherical rover to be deployed on Mars. They are designed to be spheres of a
32 +diameter of 5 m equator-wards by Martian winds. One Tumbleweed consists of a sturdy aluminum/composite
33 +outer frame and sails arranged to provide optimal air resistance. Solar cells on the sails provide power. Sensors
34 +and electronics are attached to the outer frame. The first Tumbleweed prototype was already participating in
35 +the AMADEE-18 mission. The research questions for the AMADEE-20 experiment can be summarized as:
36 +
37 +1) What is the performance of the solar cells perform under operational conditions? Specifically, what is
38 +the effect of the constantly changing illumination angle caused by the rover’s movement
39 +and different times of day?
40 +2) What is the distribution of abrasion on the Tumbleweed’s structure? Surface abrasion is
41 +expected to be one of the main factors limiting the structural lifespan of a Tumbleweed
42 +Rover. The aim is to find out more about the rate and distribution of this abrasion. The
43 +test shall be conducted in sandy as well as increasingly rocky environment.
44 +3) How does the Tumbleweed’s speed and direction of movement vary under different
45 +wind conditions?
46 +
47 +
48 += Experiment Data =
49 +
50 +|=(% style="width: 156px;" %)Date|=(% style="width: 1683px;" %)Files
51 +|(% style="width:156px" %)[[2021-10-15>>https://mission.oewf.org/archive_downloads/amadee20/TUMBLEWEED-JRP/2021-10-15/]]|(% style="width:1683px" %)(((
52 +pictures of wring issues
53 +)))
54 +|(% style="width:156px" %)[[2021-10-17>>https://mission.oewf.org/archive_downloads/amadee20/TUMBLEWEED-JRP/2021-10-17]]|(% style="width:1683px" %)repair pics
55 +|(% style="width:156px" %)[[2021-10-18>>https://mission.oewf.org/archive_downloads/amadee20/TUMBLEWEED-JRP/2021-10-18/]]|(% style="width:1683px" %)troubleshooting pics
56 +|(% style="width:156px" %)[[2021-10-19>>https://mission.oewf.org/archive_downloads/amadee20/TUMBLEWEED-JRP/2021-10-19]]|(% style="width:1683px" %)Pictures and Video
57 +|(% style="width:156px" %)[[2021-10-20>>https://mission.oewf.org/archive_downloads/amadee20/TUMBLEWEED-JRP/2021-10-20]]|(% style="width:1683px" %)2xVideo, 5 pics, POI.md
58 +|(% style="width:156px" %)[[2021-10-22>>https://mission.oewf.org/archive_downloads/amadee20/TUMBLEWEED-JRP/2021-10-22/]]|(% style="width:1683px" %)7 pictures
59 +|(% style="width:156px" %)[[2021-10-24>>https://mission.oewf.org/archive_downloads/amadee20/TUMBLEWEED-JRP/2021-10-24]]|(% style="width:1683px" %)2 videos
60 +|(% style="width:156px" %)[[2021-10-29>>https://mission.oewf.org/archive_downloads/amadee20/TUMBLEWEED-JRP/2021-10-29]]|(% style="width:1683px" %)1 video
61 +
62 +
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