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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
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
- Pressure distribution
- 일반주제명
- Reynolds number
- 일반주제명
- Altitude
- 일반주제명
- Aerospace engineering
- 일반주제명
- Fluid mechanics
- 기본자료저록
- Dissertations Abstracts International. 87-05B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008260126s2025 us c eng d■001000017360252
■00520260202105328
■006m o d
■007cr#unu||||||||
■020 ▼a9798263324674
■035 ▼a(MiAaPQ)AAI32307915
■035 ▼a(MiAaPQ)GeorgiaTech78691
■040 ▼aMiAaPQ▼cMiAaPQ
■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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