Perception-based noise assessment of a future blended wing body aircraft concept using synthesized flyovers in an acoustic VR environment—The ARTEM study

Pieren, Reto; Le Griffon, Ingrid; Bertsch, Lothar; Heusser, Axel; Centracchio, Francesco; Weintraub, Daniel; Lavandier, Catherine; Schäffer, Beat

doi:10.1016/j.ast.2023.108767

Cited by 6 publications

(5 citation statements)

References 29 publications

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“…The general outcomes of this study indicate that the integration of high BPR turbofans on such a BWB configuration could lead to significant reductions in ground noise emissions, mainly due to the shielding effect. These indications are subsequently confirmed in the study proposed in [96], in which more detailed results are presented and commented on the same BWB configuration. The interesting analyses presented in [96] confirm the potential large benefits introduced by noise shielding on the perception of noise on the ground, especially when compared to aircraft of the same category with traditional tube-and-wing architecture.…”

Section: Unconventional Uhbr Turbofan-airframe Installationssupporting

confidence: 63%

“…These indications are subsequently confirmed in the study proposed in [96], in which more detailed results are presented and commented on the same BWB configuration. The interesting analyses presented in [96] confirm the potential large benefits introduced by noise shielding on the perception of noise on the ground, especially when compared to aircraft of the same category with traditional tube-and-wing architecture. Another general study on the coupling of UHBR turbofans and BWB architecture can be found in ref.…”

Section: Unconventional Uhbr Turbofan-airframe Installationssupporting

confidence: 63%

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A Review of Novel and Non-Conventional Propulsion Integrations for Next-Generation Aircraft

Abu Salem,

Palaia,

Bravo-Mosquera

et al. 2024

Designs

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The aim of this review paper is to collect and discuss the most relevant and updated contributions in the literature regarding studies on new or non-conventional technologies for propulsion–airframe integration. Specifically, the focus is given to both evolutionary technologies, such as ultra-high bypass ratio turbofan engines, and breakthrough propulsive concepts, represented in this frame by boundary layer ingestion engines and distributed propulsion architectures. The discussion focuses mainly on the integration effects of these propulsion technologies, with the aim of defining performance interactions with the overall aircraft, in terms of aerodynamic, propulsive, operating and mission performance. Hence, this work aims to analyse these technologies from a general perspective, related to the effects they have on overall aircraft design and performance, primarily considering the fuel consumption as a main metric. Potential advantages but also possible drawbacks or detected showstoppers are proposed and discussed with the aim of providing as broad a framework as possible for the aircraft design development roadmap for these emerging propulsive technologies.

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Section: Unconventional Uhbr Turbofan-airframe Installationssupporting

confidence: 63%

Section: Unconventional Uhbr Turbofan-airframe Installationssupporting

confidence: 63%

A Review of Novel and Non-Conventional Propulsion Integrations for Next-Generation Aircraft

Abu Salem,

Palaia,

Bravo-Mosquera

et al. 2024

Designs

View full text Add to dashboard Cite

show abstract

“…More recently, a perception-based noise study [89] investigated the flyover of a BWB variant. It has been shown that the blended designs are substantially less annoying than current tube-and-wing long-range aircraft of similar range and mission for take-offs as well as for landings.…”

Section: Noisementioning

confidence: 99%

The U.S Air Force Next-Generation Air-Refueling System: a Resurgence of the Blended wing Body?

Fernandes,

Maldonado

2024

Preprint

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The interest in flying wings dates as far the early years of the aviation age. Over the 20th century, numerous attempts were made to investigate the feasibility of the concept, which demonstrated numerous early benefits: increased aerodynamic efficiency, reduced fuel consumption and lower noise and pollutant emissions compared to conventional tube and wing aircraft. However, major technical challenges prevented that type of design from entering mass production, especially with regards to structural design and manufacturing, stability and control and ride quality. In the 1990’s, a new concept, the blended wing body (BWB), was created to alleviate some of the concerns of flying wings while maintaining increased efficiency. Despite the promise, technical hurdles once again proved to be a deal breaker, and as of 2024, the only flying wing to enter serial production is the B-2 Spirit, an extremely complex and expensive aircraft. Thirty years later, as the world is quickly transitioning towards cleaner energy, the interest in the blended wing body has been renewed. The latest technological advancements in the aerospace industry should make the development of the BWB more plausible, however passenger comfort issues remain. Surprisingly, the BWB development may come from an unexpected application: as a tanker aircraft. As the U.S. Air Force is seeking a replacement to hundreds of aging tankers, a startup company was recently funded to develop the concept and build a prototype. In this study, we explore the history of blended designs from its early days, highlighting its opportunities and challenges – and why the design is an intriguing fit for application as a tanker aircraft.

show abstract

“…More recently, a perception-based noise study [94] investigated the flyover of a BWB variant. It has been shown that the blended designs are substantially less annoying than current tube-and-wing long-range aircraft of similar range and mission for take-offs as well as for landings.…”

Section: Noisementioning

confidence: 99%

The U.S. Air Force Next-Generation Air-Refueling System: A Resurgence of the Blended Wing Body?

Fernandes,

Maldonado

2024

Aerospace

View full text Add to dashboard Cite

The interest in flying wings dates as far as the early years of the aviation age. Early investigations of the feasibility of the concept demonstrated increased aerodynamic efficiency and reduced fuel consumption. However, structural, engine integration, and stability and control issues prevented further development. In the 1990s, a new concept, the blended wing body (BWB), was created to alleviate some of the concerns of flying wings while maintaining increased efficiency and adding further benefits, such as reduced pollutant and noise emissions. Despite the promise, technical hurdles once again proved to be a deal breaker and, as of 2024, the only successful flying wing is the B-2 Spirit, an extremely complex and expensive aircraft. Nowadays, with the world quickly transitioning towards cleaner energy, the interest in the BWB has been renewed. The latest technological advancements in the aerospace industry should make its development more plausible; however, passenger comfort issues remain. Surprisingly, the BWB development may come from an unexpected application, as a tanker aircraft. As the U.S. Air Force is seeking a replacement to hundreds of aging tankers, a startup company was recently funded to develop the concept and build a prototype. In this study, we explore the history of blended designs from its early days, highlighting its opportunities and challenges—and why the design is an intriguing fit for application as a tanker aircraft.

show abstract

Perception-based noise assessment of a future blended wing body aircraft concept using synthesized flyovers in an acoustic VR environment—The ARTEM study

Cited by 6 publications

References 29 publications

A Review of Novel and Non-Conventional Propulsion Integrations for Next-Generation Aircraft

A Review of Novel and Non-Conventional Propulsion Integrations for Next-Generation Aircraft

The U.S Air Force Next-Generation Air-Refueling System: a Resurgence of the Blended wing Body?

The U.S. Air Force Next-Generation Air-Refueling System: A Resurgence of the Blended Wing Body?

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