Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 7 of 7 for “"Hybrid Wing Body (HWB)"”.
-
Design and acoustic shielding prediction of hybrid wing-body aircraft
… in aircraft design have focused on the growing concerns about the environment impact of aviation and the rising costs of fuel. Under NASA's N+2 subsonics fixed-wing project, hybrid-wing-body (HWB) aircraft are investigated with the goal to meet the N+2 noise, fuel burn, and emissions …
-
Control Power Optimization using Artificial Intelligence for Hybrid Wing Body Aircraft
… the control allocation optimization problem of Hybrid Wing Body (HWB) aircraft concepts for minimizing control power, hinge moments, and actuator forces, while keeping the system weights within acceptable limits. The main objective is to develop a proof-of-concept process suitable to demonstrate …
-
Impact of Liquefied Natural Gas usage and payload size on Hybrid Wing Body aircraft fuel efficiency
This work assessed Hybrid Wing Body (HWB) aircraft in the context of Liquefied Natural Gas (LNG) fuel usage and payload/range scalability at three scales: H1 (B737), H2 (B787) and H3 (B777). The aircraft were optimized for reduced fuel burn and airframe noise at approach, based on NASA N+3 goals …
-
The Analysis and Prediction of Jet Flow and Jet Noise about Airframe Surfaces
… used to demonstrate the shielding effects of the Hybrid Wing Body (HWB) aircraft. The validation assessment shows that the acoustic analogy and tailored Green's function provided by the ray tracing method are capable of capturing jet shielding characteristics for multiple configurations and jet …
-
Comprehensive Multi-Scale Progressive Failure Analysis for Damage Arresting Advanced Aerospace Hybrid Structures
… to be implemented, enabling the feasibility of Hybrid Wing Body (HWB) aircraft. In addition to its unique fabrication process, the through-thickness stitching utilized by PRSEUS overcomes the low post-damage strength present in typical composites. Although many proof-of-concept tests have been …
-
The power balance method For aerodynamic performance assessment
… and 3) performance quantification of a hybrid wing body (HWB) with BLI propulsion system. In the first application, an analytical expression for the form factor used in the wetted area method (a profile drag correlation employed in conceptual design, which is heavily based on empiricism) …
-
Hydrogen powered hybrid wing body freighter systems analysis and conceptual design using the ACS tool
… a result a higher aircraft volume was needed. A Hybrid Wing Body was approximated in ACS because of the excess volume in that particular configuration. That made a HWB an attractive candidate for hydrogen fuel. The hydrogen candidate was scaled down to two additional sized to accomplish the …