Lessons in the Design and Characterization Testing of the Semi-Span Super-Sonic Transport (S4T) Wind-Tunnel Model

Florance, James R.; Scott, Robert C.; Keller, Donald F.; Sanetrik, Mark D.; Silva, Walter; Perry, Boyd

doi:10.2514/6.2012-1553

Cited by 5 publications

(7 citation statements)

References 8 publications

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“…10) have not yet identified a clear transonic flutter dip. Prior experience 8 has indicated that supersonic configurations, by design, tend to have a very narrow transonic range which can lead to a very narrow ('chimney') transonic flutter dip.…”

Section: 19mentioning

confidence: 99%

“…10 Starting with the geometric and flight parameters for the TCA and then choosing the design condition in the tunnel, scale factors can be determined that would yield a model with aeroelastic characteristics easily scalable to the full-sized TCA. In order to ease the design, fabrication, and testing of the model, the maximum allowable size for the model in the TDT was determined by the TDT test section length limiting the model fuselage length to be 16 feet.…”

Section: Iia Designmentioning

confidence: 99%

“…Details regarding all other characterization tests can be found in the references. 10 Multiple GVTs were performed as an important component of each wind-tunnel test. Typically, one GVT was performed prior to every wind-tunnel test followed by another GVT at the end of the wind-tunnel test.…”

Section: Ground Vibration Testsmentioning

confidence: 99%

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An Overview of the Semi-Span Super-Sonic Transport (S4T) Wind-Tunnel Model Program

Silva

Perry²,

Florance³

et al. 2012

53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials ConferenceSelf Cite

14
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A summary of computational and experimental aeroelastic (AE) and aeroservoelastic (ASE) results for the Semi-Span Super-Sonic Transport (S 4 T) wind-tunnel model is presented. A broad range of analyses and multiple AE and ASE wind-tunnel tests of the S 4 T wind-tunnel model have been performed in support of the ASE element in the Supersonics Program, part of the NASA Fundamental Aeronautics Program. This paper is intended to be an overview of multiple papers that comprise a special S 4 T technical session. Along those lines, a brief description of the design and hardware of the S 4 T wind-tunnel model will be presented. Computational results presented include linear and nonlinear aeroelastic analyses, and rapid aeroelastic analyses using CFD-based reduced-order models (ROMs). A brief survey of some of the experimental results from two open-loop and two closed-loop wind-tunnel tests performed at the NASA Langley Transonic Dynamics Tunnel (TDT) will be presented as well.

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Section: 19mentioning
confidence: 99%

Section: Iia Designmentioning
confidence: 99%

See 1 more Smart Citation
An Overview of the Semi-Span Super-Sonic Transport (S4T) Wind-Tunnel Model Program
Silva
¹
,
Perry²,
Florance³
et al. 2012
53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials ConferenceSelf Cite
14
0
12
0
View full text Add to dashboard Cite
A summary of computational and experimental aeroelastic (AE) and aeroservoelastic (ASE) results for the Semi-Span Super-Sonic Transport (S 4 T) wind-tunnel model is presented. A broad range of analyses and multiple AE and ASE wind-tunnel tests of the S 4 T wind-tunnel model have been performed in support of the ASE element in the Supersonics Program, part of the NASA Fundamental Aeronautics Program. This paper is intended to be an overview of multiple papers that comprise a special S 4 T technical session. Along those lines, a brief description of the design and hardware of the S 4 T wind-tunnel model will be presented. Computational results presented include linear and nonlinear aeroelastic analyses, and rapid aeroelastic analyses using CFD-based reduced-order models (ROMs). A brief survey of some of the experimental results from two open-loop and two closed-loop wind-tunnel tests performed at the NASA Langley Transonic Dynamics Tunnel (TDT) will be presented as well.
show abstract

“…The FEM consists of 2866 points and 4530 elements. Figure 1 shows a view of the FEM; a complete description of the development of the FEM can be found in another paper to be presented as part of this special session 2 . This FEM was the basis of the modal and flutter analyses conducted using MSC Nastran.…”

Section: Modal Analysismentioning
confidence: 99%

“…The S 4 T project was conducted by the Aeroelasticity Branch at the NASA Langley Research Center under the auspices of the Supersonics Project of the NASA Fundamental Aerodynamics Program (FAP). Further detail of the S 4 T project and the FAP can be found in other papers to be presented as part of this special session 1,2 . The purpose of the windtunnel tests, conducted at NASA Langley's Transonic Dynamics Tunnel (TDT), was to supply data to design and test control laws designed to improve ride quality, alleviate gust loads and suppress flutter.…”

Section: Introductionmentioning
confidence: 99%

Computational Aeroelastic Analysis of the Semi-Span Super-Sonic Transport (S4T) Wind-Tunnel Model
Sanetrik¹,
Silva²,
Hur³
2012
53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials ConferenceSelf Cite
3
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4
0
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Robust Flutter Suppression and Wind-Tunnel Tests of a Three-Dimensional Wing
Qian
¹

2018
J. Aerosp. Eng.
2
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0
0
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Lessons in the Design and Characterization Testing of the Semi-Span Super-Sonic Transport (S4T) Wind-Tunnel Model

Cited by 5 publications

References 8 publications

An Overview of the Semi-Span Super-Sonic Transport (S4T) Wind-Tunnel Model Program

An Overview of the Semi-Span Super-Sonic Transport (S4T) Wind-Tunnel Model Program

Computational Aeroelastic Analysis of the Semi-Span Super-Sonic Transport (S4T) Wind-Tunnel Model

Robust Flutter Suppression and Wind-Tunnel Tests of a Three-Dimensional Wing

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