Changes for page Amadee-20-TUMBLEWEED-JRP
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... ... @@ -1,0 +1,47 @@ 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 8 + 9 +E-mail: [[julian@teamtumbleweed.eu>>mailto:julian@teamtumbleweed.eu]][[mailto:seda.ozdemirfritz@gmail.com]] 10 +))) 11 +|**Organisation** |University of Technology, Vienna 12 +|**Co-Investigators**|((( 13 +Moritz Stephan, Stanford University; Wurlitzergasse 93/23, 1170 Vienna 14 +E-mail: [[moritz@teamtumbleweed.eu>>mailto:moritz@teamtumbleweed.eu]] 15 + 16 +Dominik Schmidt, University of Technology Vienna; Hietzinger Hauptstr. 69/3, 1130 Wien, : 17 +E-mail: [[dominik@teamtumbleweed.eu>>mailto:dominik@teamtumbleweed.eu]] 18 + 19 +Amelie Finan, University of Vienna; Bernhard Schilcher Straße 18, 2000 Stockerau 20 +E-mail: [[amelie@teamtumbleweed.eu>>mailto:amelie@teamtumbleweed.eu]] 21 + 22 +Josef E. Pürmayr, Sir Karl Popper school; Wiedner Gürtel 68, 1040 Vienna; 23 +E-mail: [[josef@teamtumbleweed.eu>>mailto:josef@teamtumbleweed.eu]] 24 + 25 + 26 + 27 +))) 28 + 29 +=== Summary === 30 + 31 +[[image:1628955738683-845.png]] 32 + 33 +Tumbleweed is the concept of a spherical rover to be deployed on Mars. They are designed to be spheres of a 34 +diameter of 5 m equator-wards by Martian winds. One Tumbleweed consists of a sturdy aluminum/composite 35 +outer frame and sails arranged to provide optimal air resistance. Solar cells on the sails provide power. Sensors 36 +and electronics are attached to the outer frame. The first Tumbleweed prototype was already participating in 37 +the AMADEE-18 mission. The research questions for the AMADEE-20 experiment can be summarized as: 38 + 39 +1) What is the performance of the solar cells perform under operational conditions? Specifically, what is 40 +the effect of the constantly changing illumination angle caused by the rover’s movement 41 +and different times of day? 42 +2) What is the distribution of abrasion on the Tumbleweed’s structure? Surface abrasion is 43 +expected to be one of the main factors limiting the structural lifespan of a Tumbleweed 44 +Rover. The aim is to find out more about the rate and distribution of this abrasion. The 45 +test shall be conducted in sandy as well as increasingly rocky environment. 46 +3) How does the Tumbleweed’s speed and direction of movement vary under different 47 +wind conditions?