Sting Dynamics of Wind Tunnel Models PDF Download
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Author: James P. Billingsley
Publisher:
ISBN:
Category : Aerodynamic load
Languages : en
Pages : 64
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Book Description
Wind tunnel model support stings can be subjected to transient aerodynamic and inertial loads which will create oscillatory translations and angular deflections. These transient oscillations always impair steady-state data accuracy and can be large enough to cause structural failure. The primary result of this investigation has been the formulation of a mathematical analysis for the dynamic response of sting-balance combinations subjected to arbitrary transient load inputs. The analysis also provides for sting rigid body motion so that model to tunnel injection and continuous sting rotation can be simulated. A computer program was written to numerically solve the sting-model-balance notion equations.
Author: James P. Billingsley
Publisher:
ISBN:
Category : Aerodynamic load
Languages : en
Pages : 64
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Book Description
Wind tunnel model support stings can be subjected to transient aerodynamic and inertial loads which will create oscillatory translations and angular deflections. These transient oscillations always impair steady-state data accuracy and can be large enough to cause structural failure. The primary result of this investigation has been the formulation of a mathematical analysis for the dynamic response of sting-balance combinations subjected to arbitrary transient load inputs. The analysis also provides for sting rigid body motion so that model to tunnel injection and continuous sting rotation can be simulated. A computer program was written to numerically solve the sting-model-balance notion equations.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Wind tunnel model support stings can be subjected to transient aerodynamic and inertial loads which will create oscillatory translations and angular deflections. These transient oscillations always impair steady-state data accuracy and can be large enough to cause structural failure. The primary result of this investigation has been the formulation of a mathematical analysis for the dynamic response of sting-balance combinations subjected to arbitrary transient load inputs. The analysis also provides for sting rigid body motion so that model to tunnel injection and continuous sting rotation can be simulated. A computer program was written to numerically solve the sting-model-balance notion equations.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Wind tunnel model support stings can be subjected to transient aerodynamic and inertial loads which will create oscillatory translations and angular deflections. These transient oscillations always impair steady-state data accuracy and can be large enough to cause structural failure. The primary result of this investigation has been the formulation of a mathematical analysis for the dynamic response of sting-balance combinations subjected to arbitrary transient load inputs. The analysis also provides for sting rigid body motion so that model to tunnel injection and continuous sting rotation can be simulated. A computer program was written to numerically solve the sting-model-balance notion equations.
Author: N. Pollock
Publisher:
ISBN: 9780642976970
Category : Wind tunnel balances
Languages : en
Pages : 26
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 5
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Wind-off, bench tests on a wind tunnel model that had freedom to pitch, and yaw, but no freedom to roll indicated that the pitching and yawing motions were inertially coupled. An order of magnitude analysis showed that this coupling was due to the product of inertia term I sub YZ. The inertially coupled equations of motion are solved, and a method is presented for determining the magnitude and sign of L sub yz from recordings of the model motion. The method used to dynamically balance the model is described, and experimental results are presented that verify this method. (Author).
Author: Kevin E. Yelmgren
Publisher:
ISBN:
Category : Pitching (Aerodynamics)
Languages : en
Pages : 0
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Book Description
Wind-off, bench tests on a wind tunnel model that had freedom to pitch, and yaw, but no freedom to roll indicated that the pitching and yawing motions were inertially coupled. An order of magnitude analysis showed that this coupling was due to the product of inertia term I sub YZ. The inertially coupled equations of motion are solved, and a method is presented for determining the magnitude and sign of L sub yz from recordings of the model motion. The method used to dynamically balance the model is described, and experimental results are presented that verify this method.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 3
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Book Description
Author: Marie H. Tuttle
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 38
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Book Description
Author: Justin D. Pereira
Publisher: Nova Science Publishers
ISBN: 9781612092041
Category : Aerodynamics
Languages : en
Pages : 0
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Book Description
This book presents current research in the study of wind tunnels, including the design, execution and numerical rebuilding of a plasma wind tunnel with the aim to analyse shock wave boundary layer interaction phenomena; the Mainz vertical wind tunnel facility experimenting on cloud physics and chemistry; an air-conditioned wind tunnel environment for the study of mass and heat flux; using wind tunnel studies to evaluate the drag coefficient of the tree crown and Pre-X aerodynamic/aerothermal characterisation through computational fluid dynamics and wind tunnels.
