Preliminary System Identification of the Blended Wing Body Flight Demonstrator VELA 2 from Flight Data

Trittler, Martin; Fichter, Walter; Voit-Nitschmann, R.; Schmoldt, Robert; Kittmann, Klaus

doi:10.2514/6.2008-6896

Cited by 6 publications

(5 citation statements)

References 3 publications

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“…In [26,107,108], subscale models are used to evaluate the characteristics of various unconventional configurations. In addition to NASA's experiments with the PTERA, research on unconventional and morphing structures has also been carried out in [109,110,111,112].…”

Section: Recent Examples Of Demonstrative Scalingmentioning

confidence: 99%

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On subscale flight testing : Cost-effective techniques for research and development

Rueda

2021

Linköping Studies in Science and Technology. Dissertations

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Section: Recent Examples Of Demonstrative Scalingmentioning

confidence: 99%

“…In most cases, the platforms used in these projects are derived from hobbyist R/C equipment and the models are usually not accurately scaled. Some examples of different implementations can be found in references [24,25,26,27,28,29,30].…”

Section: Introductionmentioning

confidence: 99%

On subscale flight testing : Cost-effective techniques for research and development

Rueda

2021

Linköping Studies in Science and Technology. Dissertations

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“…In [25,102,103], subscale models are used to evaluate the characteristics of various unconventional configurations. Furthermore, besides NASA's experiments with the PTERA, research on unconventional and morphing structures has also been carried out in [104,105,106,107].…”

Section: Recent Examples Of Demonstrative Scalingmentioning

confidence: 99%

“…The platforms used in these projects are in most cases derived from hobbyist R/C equipment and the models are usually not accurately scaled. Some examples of different implementations can be found in references [23,24,25,26,27,28,29].…”

Section: Introductionmentioning

confidence: 99%

On Subscale Flight Testing : Applications in Aircraft Conceptual Design

Sobron

2018

Linköping Studies in Science and Technology Thesis

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“…Numerous academic and research projects involving SFT have also been carried out recently by various universities, often using lower-cost platforms derived from hobbyist radio controlled (RC) equipment. Some examples of different implementations can be found in references (Seanor, 2002; Jung et al , 2005; Trittler et al , 2008; Murch et al , 2011; Arifianto, 2013; Dantsker et al , 2013; Ragheb et al , 2013; Ouellette et al , 2014; Pieper et al , 2018).…”

Section: Introductionmentioning

confidence: 99%

Estimation of lift characteristics of a subscale fighter using low-cost experimental methods

Nepomuceno

Silva

Sobron

et al. 2022

AEAT

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Purpose While computational methods are prevalent in aircraft conceptual design, recent advances in mechatronics and manufacturing are lowering the cost of practical experiments. Focussing on a relatively simple property, the lift curve, this study aims to increase understanding of how basic aerodynamic characteristics of a complex stealth configuration can be estimated experimentally using low-cost equipment, rapid prototyping methods and remotely piloted aircraft. Design/methodology/approach Lift curve estimates are obtained from a wind tunnel test of a three-dimensional-printed, 3.8%-scale model of a generic fighter and from flight testing a 14%-scale demonstrator using both a simple and a more advanced identification technique based on neural networks. These results are compared to a computational fluid dynamics study, a panel method and a straightforward, theoretical approach based on radical geometry simplifications. Findings Besides a good agreement in the linear region, discrepancies at high angles of attack reveal the shortcomings of each method. The remotely piloted model manages to provide consistent results beyond the physical limitations of the wind tunnel although it seems limited by instrumentation capabilities and unmodelled thrust effects. Practical implications Physical models can, even though low-cost experiments, expand the capabilities of other aerodynamic tools and contribute to reducing uncertainty when other estimations diverge. Originality/value This study highlights the limitations of commonly used aerodynamic methods and shows how low-cost prototyping and testing can complement or validate other estimations in the early study of a complex configuration.

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Preliminary System Identification of the Blended Wing Body Flight Demonstrator VELA 2 from Flight Data

Cited by 6 publications

References 3 publications

On subscale flight testing : Cost-effective techniques for research and development

On subscale flight testing : Cost-effective techniques for research and development

On Subscale Flight Testing : Applications in Aircraft Conceptual Design

Estimation of lift characteristics of a subscale fighter using low-cost experimental methods

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