Dynamic Investigation of Static Divergence: Analysis and Testing

Dynamic Investigation of Static Divergence: Analysis and Testing PDF Author: Jennifer Heeg
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 164

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Book Description
The phenomenon known as aeroelastic divergence is the focus of this work. The analyses and experiment presented here show that divergence can occur without a structural dynamic mode losing its oscillatory nature. Aeroelastic divergence occurs when the structural restorative capability or stiffness of a structure is overwhelmed by the static aerodynamic moment. This static aeroelastic coupling does not require the structural dynamic system behavior to cease, however. Aeroelastic changes in the dynamic mode behavior are governed not only by the stiffness, but by damping and inertial properties. The work presented here supports these fundamental assertions by examining a simple system: a typical section airfoil with only a rotational structural degree of freedom.

Dynamic Investigation of Static Divergence: Analysis and Testing

Dynamic Investigation of Static Divergence: Analysis and Testing PDF Author: Jennifer Heeg
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 164

Get Book Here

Book Description
The phenomenon known as aeroelastic divergence is the focus of this work. The analyses and experiment presented here show that divergence can occur without a structural dynamic mode losing its oscillatory nature. Aeroelastic divergence occurs when the structural restorative capability or stiffness of a structure is overwhelmed by the static aerodynamic moment. This static aeroelastic coupling does not require the structural dynamic system behavior to cease, however. Aeroelastic changes in the dynamic mode behavior are governed not only by the stiffness, but by damping and inertial properties. The work presented here supports these fundamental assertions by examining a simple system: a typical section airfoil with only a rotational structural degree of freedom.

Advances in Wind Power

Advances in Wind Power PDF Author: Rupp Carriveau
Publisher: BoD – Books on Demand
ISBN: 9535108638
Category : Technology & Engineering
Languages : en
Pages : 378

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Book Description
Today's wind energy industry is at a crossroads. Global economic instability has threatened or eliminated many financial incentives that have been important to the development of specific markets. Now more than ever, this essential element of the world energy mosaic will require innovative research and strategic collaborations to bolster the industry as it moves forward. This text details topics fundamental to the efficient operation of modern commercial farms and highlights advanced research that will enable next-generation wind energy technologies. The book is organized into three sections, Inflow and Wake Influences on Turbine Performance, Turbine Structural Response, and Power Conversion, Control and Integration. In addition to fundamental concepts, the reader will be exposed to comprehensive treatments of topics like wake dynamics, analysis of complex turbine blades, and power electronics in small-scale wind turbine systems.

NASA Technical Paper

NASA Technical Paper PDF Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 56

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Book Description


Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1460

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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Introduction to Aircraft Flight Mechanics

Introduction to Aircraft Flight Mechanics PDF Author: Thomas R. Yechout
Publisher: AIAA
ISBN: 9781600860782
Category : Aerodynamics
Languages : en
Pages : 666

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Book Description
Based on a 15-year successful approach to teaching aircraft flight mechanics at the US Air Force Academy, this text explains the concepts and derivations of equations for aircraft flight mechanics. It covers aircraft performance, static stability, aircraft dynamics stability and feedback control.

A Selected Listing of NASA Scientific and Technical Reports for ...

A Selected Listing of NASA Scientific and Technical Reports for ... PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 450

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Book Description


Index of NASA Technical Publications

Index of NASA Technical Publications PDF Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 448

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Book Description


NASA Technical Memorandum

NASA Technical Memorandum PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 340

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Book Description


NASA Langley Scientific and Technical Information Output 2000

NASA Langley Scientific and Technical Information Output 2000 PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 162

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Book Description


Wind Tunnels and Experimental Fluid Dynamics Research

Wind Tunnels and Experimental Fluid Dynamics Research PDF Author: Jorge Colman Lerner
Publisher: BoD – Books on Demand
ISBN: 9533076232
Category : Science
Languages : en
Pages : 728

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Book Description
The book "Wind Tunnels and Experimental Fluid Dynamics Research" is comprised of 33 chapters divided in five sections. The first 12 chapters discuss wind tunnel facilities and experiments in incompressible flow, while the next seven chapters deal with building dynamics, flow control and fluid mechanics. Third section of the book is dedicated to chapters discussing aerodynamic field measurements and real full scale analysis (chapters 20-22). Chapters in the last two sections deal with turbulent structure analysis (chapters 23-25) and wind tunnels in compressible flow (chapters 26-33). Contributions from a large number of international experts make this publication a highly valuable resource in wind tunnels and fluid dynamics field of research.