國立虎尾科技大學 |

Flight Dynamics of a Coaxial Helicopter Hovering on Mars.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Flight Dynamics of a Coaxial Helicopter Hovering on Mars./
Author:	Greenbaum, Eric.
Description:	1 online resource (116 pages)
Notes:	Source: Masters Abstracts International, Volume: 85-04.
Contained By:	Masters Abstracts International85-04.
Subject:	Aerospace engineering. -
Online resource:	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:

686400
Aerospace engineering.
Subjects--Index Terms:

MarsIndex Terms--Genre/Form:

554714
Electronic books.

Flight Dynamics of a Coaxial Helicopter Hovering on Mars.
LDR:02476ntm a22004097 4500 001 1145104
005 20240617111345.5
006 m o d
007 cr mn ---uuuuu
008 250605s2023 xx obm 000 0 eng d
020 $a 9798380583312
035 $a (MiAaPQ)AAI30491648
035 $a AAI30491648
040 $a MiAaPQ $b eng $c MiAaPQ $d NTU
100 1 $a Greenbaum, Eric. $3 1470318
245 1 0 $a Flight Dynamics of a Coaxial Helicopter Hovering on Mars.
264 0 $c 2023
300 $a 1 online resource (116 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Masters Abstracts International, Volume: 85-04.
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
650 4 $a Aerospace engineering. $3 686400
650 4 $a Applied physics. $3 1181953
650 4 $a Computer science. $3 573171
650 4 $a Mechanical engineering. $3 557493
653 $a Mars
653 $a Helicopter hovering
653 $a Flight dynamics
653 $a Aircraft
653 $a Ingenuity
655 7 $a Electronic books. $2 local $3 554714
690 $a 0538
690 $a 0984
690 $a 0548
690 $a 0215
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a University of Maryland, College Park. $b Aerospace Engineering. $3 1148546
773 0 $t Masters Abstracts International $g 85-04.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30491648 $z click for full text (PQDT)