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Bleed-Air Actuation for Lateral and Longitudinal Control of Single-Surface Parafoils
Bleed-Air Actuation for Lateral and Longitudinal Control of Single-Surface Parafoils
Bleed-Air Actuation for Lateral and Longitudinal Control of Single-Surface Parafoils

Detailed Information

자료유형  
 학위논문 서양
최종처리일시  
20260202105328
ISBN  
9798263324674
DDC  
330
저자명  
Ward, Donald J.
서명/저자  
Bleed-Air Actuation for Lateral and Longitudinal Control of Single-Surface Parafoils
발행사항  
[Sl] : Georgia Institute of Technology, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
136 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
주기사항  
Advisor: Costello, Mark.
학위논문주기  
Thesis (Ph.D.)--Georgia Institute of Technology, 2025.
초록/해제  
요약This dissertation examines the integration of bleed-air actuation in a paragliding-style, single-surface canopy to produce lateral and longitudinal control with low Size, Weight, and Power (SWaP) requirements. The work herein is supported by physical prototyping and experimental flight testing of bleed-air spoilers and controllable vents on a small scale. The contributions of the dissertation are as follows:1. Demonstrated that bleed-air vents produce an aerodynamic spoiler on single-surface canopies that induce turn rate and glide slope changes. Chord location of the vents was critical in determining response, as lateral and longitudinal control authority diminishes rapidly as vents are moved away from the leading edge.2. Identified the special considerations required for bleed-air actuators to seal given the low pressure differential and recirculating airflow on the underside of the singlesurface canopy.3. Designed a controllable bleed-air vent that produces a control response and seals without adding considerable weight, drag, or stiffness to the canopy.4. Characterized the lateral and longitudinal control response of various Bleed-Air Actuator (BAA) arrays and compared to literature, demonstrating control is sufficient for autonomous systems. Mapped the coupling between the lateral control and glide slope changes for future designers to consider when developing control algorithms.5. Bleed-air control is shown to require 80% less force to achieve similar control authority to conventional trailing edge control.
일반주제명  
Aircraft
일반주제명  
Global positioning systems--GPS
일반주제명  
Pressure distribution
일반주제명  
Reynolds number
일반주제명  
Altitude
일반주제명  
Aerospace engineering
일반주제명  
Fluid mechanics
기타저자  
Georgia Institute of Technology.
기본자료저록  
Dissertations Abstracts International. 87-05B.
전자적 위치 및 접속  
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■035    ▼a(MiAaPQ)GeorgiaTech78691
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■0820  ▼a330
■1001  ▼aWard,  Donald  J.
■24510▼aBleed-Air  Actuation  for  Lateral  and  Longitudinal  Control  of  Single-Surface  Parafoils
■260    ▼a[Sl]▼bGeorgia  Institute  of  Technology▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a136  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-05,  Section:  B.
■500    ▼aAdvisor:  Costello,  Mark.
■5021  ▼aThesis  (Ph.D.)--Georgia  Institute  of  Technology,  2025.
■520    ▼aThis  dissertation  examines  the  integration  of  bleed-air  actuation  in  a  paragliding-style,  single-surface  canopy  to  produce  lateral  and  longitudinal  control  with  low  Size,  Weight,  and  Power  (SWaP)  requirements.  The  work  herein  is  supported  by  physical  prototyping  and  experimental  flight  testing  of  bleed-air  spoilers  and  controllable  vents  on  a  small  scale.  The  contributions  of  the  dissertation  are  as  follows:1.  Demonstrated  that  bleed-air  vents  produce  an  aerodynamic  spoiler  on  single-surface  canopies  that  induce  turn  rate  and  glide  slope  changes.  Chord  location  of  the  vents  was  critical  in  determining  response,  as  lateral  and  longitudinal  control  authority  diminishes  rapidly  as  vents  are  moved  away  from  the  leading  edge.2.  Identified  the  special  considerations  required  for  bleed-air  actuators  to  seal  given  the  low  pressure  differential  and  recirculating  airflow  on  the  underside  of  the  singlesurface  canopy.3.  Designed  a  controllable  bleed-air  vent  that  produces  a  control  response  and  seals  without  adding  considerable  weight,  drag,  or  stiffness  to  the  canopy.4.  Characterized  the  lateral  and  longitudinal  control  response  of  various  Bleed-Air  Actuator  (BAA)  arrays  and  compared  to  literature,  demonstrating  control  is  sufficient  for  autonomous  systems.  Mapped  the  coupling  between  the  lateral  control  and  glide  slope  changes  for  future  designers  to  consider  when  developing  control  algorithms.5.  Bleed-air  control  is  shown  to  require  80%  less  force  to  achieve  similar  control  authority  to  conventional  trailing  edge  control.
■590    ▼aSchool  code:  0078.
■650  4▼aAircraft
■650  4▼aGlobal  positioning  systems--GPS
■650  4▼aPressure  distribution
■650  4▼aReynolds  number
■650  4▼aAltitude
■650  4▼aAerospace  engineering
■650  4▼aFluid  mechanics
■690    ▼a0538
■690    ▼a0204
■71020▼aGeorgia  Institute  of  Technology.
■7730  ▼tDissertations  Abstracts  International▼g87-05B.
■790    ▼a0078
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360252▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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