Aerodynamic characteristics, database development and flight simulation of the X-34 vehicle

Pamadi, Bandu N.; Brauckmann, Gregory J.; Ruth, Michael; Fuhrmann, Henri D.

doi:10.2514/6.2000-900

Cited by 26 publications

(17 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is very stable to Mach 2 and unstable at all Mach numbers above Mach 2 23 . Those stability characteristics are, to a large part, influenced by the choice of wing configuration; see also the stability and control problems experienced with SpaceShipOne 24 .…”

Section: Flight Mechanicsmentioning

confidence: 97%

Conceptual Design Assessment of a Suborbital Tourist Space Access Vehicle (SAV)

Chudoba

Coleman

Huang

et al. 2006

44th AIAA Aerospace Sciences Meeting and Exhibit

View full text Add to dashboard Cite

Space transportation remains in the pioneering stages. What might this century bring if we had a 'railroad to space' that embodied the characteristics of the transcontinental undertaking? The X-33 and Venture Star projects were one attempt to achieve the characteristics of that transcontinental railroad. There are others, here and in other countries, but perhaps we need to begin with a smaller first step, a small, commercial reusable vertical rocket with ballistic ascent to space altitude with a hypersonic glider return? Our challenge in space today is to develop vehicles that are in continuous use, maintained and operated on a fixed schedule despite weather or environmental hazards, that move payloads not only into space but back again. The X PRIZE was a $10 million prize awarded to Scaled Composites as the first privately financed spaceship that launched the equivalent of three persons to an altitude of at least 100 kilometers on two consecutive flights within two weeks. What about an analogous vehicle that flies two or three times a week, every week for a number of years? A major difference is that this challenge is to be accomplished without government support or government developed vehicles. The Aerospace Vehicle Design (AVD) Laboratory team at the University of Texas at Arlington is developing a generic space access vehicle (SAV) design synthesis environment with focus on the conceptual design phase. The AVD Lab has applied elements of this toolbox to the study of a tourist aerospace vehicle under a grant from Rocketplane Limited, Inc. The application of a hands-on methodology to develop a low-cost tourist vehicle based on the adaptation of a Learjet 25/35/45 series aircraft is the focus of this paper. Nomenclature AVD = Aerospace Vehicle Design CD = Conceptual Design DBS = Data Base System FAA = Federal Aviation Administration FAR = Federal Aviation Requirements GE = General Electric KB = Knowledge-Base LEO = Low-Earth Orbit OU = University of Oklahoma SAV = Space Access Vehicle SBA = Simulation-Based Acquisition SBA-SE = Simulation-Based Acquisition Synthesis Environment SSTO = Single Stage To Orbit

show abstract

Section: Flight Mechanicsmentioning

confidence: 97%

Conceptual Design Assessment of a Suborbital Tourist Space Access Vehicle (SAV)

Chudoba

Coleman

Huang

et al. 2006

44th AIAA Aerospace Sciences Meeting and Exhibit

View full text Add to dashboard Cite

show abstract

“…Brauckmann 40 provides details of the aerodynamic data and analysis. Pamadi, et al 41 discusses the ADB development work that was performed in support of guidance and control of the vehicle in flight. While the X--34 was cancelled prior to flight, this effort does highlight an approach whereby only Langley facilities were used to generate the flight aerodynamic database across the speed regime (including the LAL for hypersonics).…”

Section: X--34 Aerothermodynamics (1995--2002)mentioning

confidence: 99%

NASA Langley Experimental Aerothermodynamic Contributions to Slender and Winged Hypersonic Vehicles

Berry

Berger

Brauckmann³

et al. 2015

53rd AIAA Aerospace Sciences Meeting

View full text Add to dashboard Cite

A review of recent NASA Langley Research Center experimental aerothermodynamic contributions to slender and winged hypersonic flight programs is presented. Significant findings and lessons learned are highlighted and discussed for a range of high profile national flight programs. In many cases, the experimental results are shown to be crucial to the success of these programs. To assure success with future hypersonic flight programs, experimental aerothermodynamic facilities will be required to provide invaluable support both pre--and post--flight.

show abstract

“…The aerodynamic parameters and the descriptions of the rapid changes of the center of gravity, mass and moment of inertia are all from refs. [1,2]. The rotation of the earth has to be taken into account in modeling vehicles at speeds higher than Mach 3.…”

Section: The Trans-aerosphere Vehicle X-34mentioning

confidence: 99%

“…When the altitude is higher than 40 km, the third term D/m on the right hand side of (1) can be neglected and, according to refs [1,2], the angle of attack α is between 5 • and 10 • , for which cos α approximately equals 1. Therefore, eq.…”

Section: Design Of the Tracking Curves Of The Altitude And The Flightmentioning

confidence: 99%

“…[1,2], the X-34 is an unmanned sub-orbital vehicle designed to be used as a flight test bed to demonstrate key vehicle and operational technologies applicable to future reusable launch vehicles. The X-34 is to be airlaunched from an L-1011 carrier aircraft at approximately Mach 0.7 and an altitude of 11 km, where an onboard engine will accelerate the vehicle to speeds above Mach 8 and an altitude of 80 km.…”

Section: The Trans-aerosphere Vehicle X-34mentioning

confidence: 99%

See 1 more Smart Citation

Characteristic model based control of the X-34 reusable launch vehicle in its climbing phase

Meng

Lin

et al. 2009

Sci. China Ser. F-Inf. Sci.

View full text Add to dashboard Cite

In this paper, a characteristic model based longitudinal control design for the trans-aerosphere vehicle X-34 in its transonic and hypersonic climbing phase is proposed. The design is based on the dynamic characteristics of the vehicle and the curves it is to track in this climbing phase. Through a detailed analysis of the aerodynamics and vehicle dynamics during this climbing phase, an explicit description of the tracking curve for the flight path angle is derived. On the basis of this tracking curve, the tracking curves for the two short-period variables, the angle of attack and the pitch rate, are designed. An all-coefficient adaptive controller is then designed, based on the characteristic modeling, to cause these two short-period variables to follow their respective tracking curves. The proposed design does not require multiple working points, making the design procedure simple. Numerical simulation is performed to validate the performance of the controller. The simulation results indicate that the resulting control law ensures that the vehicle climbs up successfully under the restrictions on the pitch angle and overloading.trans-aerosphere vehicle X-34, climbing phase, characteristic modeling, adaptive control, robustness

show abstract

Aerodynamic characteristics, database development and flight simulation of the X-34 vehicle

Cited by 26 publications

References 0 publications

Conceptual Design Assessment of a Suborbital Tourist Space Access Vehicle (SAV)

Conceptual Design Assessment of a Suborbital Tourist Space Access Vehicle (SAV)

NASA Langley Experimental Aerothermodynamic Contributions to Slender and Winged Hypersonic Vehicles

Characteristic model based control of the X-34 reusable launch vehicle in its climbing phase

Contact Info

Product

Resources

About