Active Controls in Aircraft Design

Active Controls in Aircraft Design PDF Author: Peter Ralph Kurzhals
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 200

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Book Description

Active Controls in Aircraft Design

Active Controls in Aircraft Design PDF Author: Peter Ralph Kurzhals
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 200

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Book Description


Flight Stability and Automatic Control

Flight Stability and Automatic Control PDF Author: Robert C. Nelson
Publisher:
ISBN:
Category : History
Languages : en
Pages : 464

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Book Description
This edition of this this flight stability and controls guide features an unintimidating math level, full coverage of terminology, and expanded discussions of classical to modern control theory and autopilot designs. Extensive examples, problems, and historical notes, make this concise book a vital addition to the engineer's library.

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 542

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Book Description


Active Spanwise Lift Control

Active Spanwise Lift Control PDF Author: Joaquim Neto Dias
Publisher: American Institute of Aeronautics and Astronautics Incorporated
ISBN: 9781624105999
Category : Airplanes
Languages : en
Pages : 0

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Book Description
Presents a novel approach to tackle the gust alleviation problem. The authors address the spanwise behaviour of aerodynamic loads, as this is what should be primarily controlled. Because the gust loads are mainly caused by disturbances in the spanwise lift, the aim is at controlling the shape of the lift distribution profile along the span.

Unsettled Topics on the Use of IVHM in the Active Control Loop

Unsettled Topics on the Use of IVHM in the Active Control Loop PDF Author: Rhonda Walthall
Publisher: SAE International
ISBN: 1468601857
Category : Technology & Engineering
Languages : en
Pages : 26

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Book Description
The growth in global economies has led to a world that has become much more mobile in the last few decades. The number of enplanements has increased and is expected to continue to do so at an annual average rate of 1.8% through 2039 [1]. Prior to the COVID-19 pandemic, the number of aircraft in service was expected to increase annually to meet the travel demand. Next-generation, more-complex aircraft were scheduled to replace the older aircraft at a pace that still allowed sufficient capacity to meet the increasing demand. The events of 2020 have driven the industry to accelerate retirement of older aircraft while deferring the introduction of new aircraft. While the length of the industry recovery period cannot be predicted, most analysts believe that demand for travel will return once a vaccine is widely available. The impact to the design of next-generation aircraft will likely be shaped by technologies that are being accelerated for the post-COVID world as well as for new mobility platforms. Technologies, such as artificial intelligence and fault-tolerant and self-adapting control, will use integrated vehicle health management (IVHM) capabilities as part of the decision-making processes. This SAE EDGE™ Research Report seeks to explore the unsettled issues surrounding embedding IVHM information into the active control loops of modern aircraft systems and in future generations of aircraft designs. NOTE: SAE EDGE™ Research Reports are intended to identify and illuminate key issues in emerging, but still unsettled, technologies of interest to the mobility industry. The goal of SAE EDGE™ Research Reports is to stimulate discussion and work in the hope of promoting and speeding resolution of identified issues. SAE EDGE™ Research Reports are not intended to resolve the challenges they identify or close any topic to further scrutiny. Click here to access the full SAE EDGETM Research Report portfolio. https://doi.org/10.4271/EPR2020011

An Aeroelastician's Perspective of Wind Tunnel and Flight Experiences with Active Control of Structural Response and Stability

An Aeroelastician's Perspective of Wind Tunnel and Flight Experiences with Active Control of Structural Response and Stability PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 82

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Book Description


1975 NASA Authorization, Hearings Before....

1975 NASA Authorization, Hearings Before.... PDF Author: United States. Congress. House Science and Astronautics Committee
Publisher:
ISBN:
Category :
Languages : en
Pages : 746

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Book Description


1975 NASA Authorization

1975 NASA Authorization PDF Author: United States. Congress. House. Committee on Science and Astronautics
Publisher:
ISBN:
Category :
Languages : en
Pages : 1792

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Book Description


Hearings, Reports and Prints of the House Committee on Science and Astronautics

Hearings, Reports and Prints of the House Committee on Science and Astronautics PDF Author: United States. Congress. House. Committee on Science and Astronautics
Publisher:
ISBN:
Category : Astronautics
Languages : en
Pages : 1702

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Book Description


Development and Demonstration of a Flutter-suppression System Using Active Controls

Development and Demonstration of a Flutter-suppression System Using Active Controls PDF Author: Maynard C. Sandford
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 76

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Book Description
The application of active control technology to suppress flutter has been demonstrated successfully in the Langley transonic dynamics tunnel with a delta-wing model. The model was a simplified version of a proposed supersonic transport wing design. An active flutter-suppression method based on an aerodynamic energy criterion has been verified by using three different control laws. The first two control laws utilized both leading-edge and trailing-edge active control surfaces, whereas the third control law required only a single trailing-edge active control surface. At a Mach number of 0.9 the experimental results demonstrated increases in the flutter dynamic pressure from 12.5 percent to 30 percent with active controls. Analytical methods were developed to predict both open-loop and closed-loop stability, and the results agreed reasonably well with the experimental results.