國立虎尾科技大學 |

Flight Dynamics of a Coaxial Helicopter Hovering on Mars.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Flight Dynamics of a Coaxial Helicopter Hovering on Mars./
作者:	Greenbaum, Eric.
面頁冊數:	1 online resource (116 pages)
附註:	Source: Masters Abstracts International, Volume: 85-04.
Contained By:	Masters Abstracts International85-04.
標題:	Mechanical engineering. -
電子資源:	click for full text (PQDT)
ISBN:	9798380583312

Flight Dynamics of a Coaxial Helicopter Hovering on Mars.
Greenbaum, Eric.

Flight Dynamics of a Coaxial Helicopter Hovering on Mars. - 1 online resource (116 pages)

Source: Masters Abstracts International, Volume: 85-04.

Thesis (M.S.)--University of Maryland, College Park, 2023.

Includes bibliographical references

This thesis develops a fundamental understanding of the flight dynamics and stability of a coaxial helicopter hovering on Mars. A simple flight dynamics solver is built to identify and investigate unique characteristics of Martian hover and validated with Ingenuity chamber test data from NASA JPL. The impact of two key parameters that are unique to the Mars helicopter - an unusually high flap frequency and an unusually low Lock number, are systematically studied. The rotor pitch and roll damping derivatives flip sign on Mars. The hover roots are more unstable, and the impact of wake curvature and inflow gradients on these roots appear unusually high. Even though the simplicity of the solver provided enough latitude to insert correction factors to replicate test data, the underlying causes remain unknown. These and other interesting gaps remain subject for the future researcher. The world of Mars flight dynamics has only been explored for two years and for fifty flights of Ingenuity. Larger, more capable aircraft envisioned for future science missions will encounter this new world and require that these gaps be resolved.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798380583312Subjects--Topical Terms:

557493
Mechanical engineering.
Subjects--Index Terms:

MarsIndex Terms--Genre/Form:

554714
Electronic books.

Flight Dynamics of a Coaxial Helicopter Hovering on Mars.
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500 $a Advisor: Datta, Anubhav.
502 $a Thesis (M.S.)--University of Maryland, College Park, 2023.
504 $a Includes bibliographical references
520 $a This thesis develops a fundamental understanding of the flight dynamics and stability of a coaxial helicopter hovering on Mars. A simple flight dynamics solver is built to identify and investigate unique characteristics of Martian hover and validated with Ingenuity chamber test data from NASA JPL. The impact of two key parameters that are unique to the Mars helicopter - an unusually high flap frequency and an unusually low Lock number, are systematically studied. The rotor pitch and roll damping derivatives flip sign on Mars. The hover roots are more unstable, and the impact of wake curvature and inflow gradients on these roots appear unusually high. Even though the simplicity of the solver provided enough latitude to insert correction factors to replicate test data, the underlying causes remain unknown. These and other interesting gaps remain subject for the future researcher. The world of Mars flight dynamics has only been explored for two years and for fifty flights of Ingenuity. Larger, more capable aircraft envisioned for future science missions will encounter this new world and require that these gaps be resolved.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2024
538 $a Mode of access: World Wide Web
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650 4 $a Computer science. $3 573171
650 4 $a Applied physics. $3 1181953
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653 $a Helicopter hovering
653 $a Flight dynamics
653 $a Aircraft
653 $a Ingenuity
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