Results 101 to 110 of about 185,594 (366)

Aerodynamics of aero-engine installation [PDF]

, 2016
This paper describes current progress in the development of methods to assess aero-engine airframe installation effects. The aerodynamic characteristics of isolated intakes, a typical transonic transport aircraft as well as a combination of a through ...
Advisory Group for Aerospace Research and Development (AGARD), Baumert W., Carlson J. R., Christie R., ESDU, Frink N. T., Frink N. T., Geyr H., Kiock R., Kulfan B., Lee E. E., Ministry-Industry Drag Analysis Panel (MIDAP) Study Group, Rivers M. B., Rossow C-C., Stańkowski T.P., Tinoco E. N., Vassberg J. C., Voulgaris I.   +17 more
core   +2 more sources

In‐Wheel Piezoelectric DC Power Generator With Zero Resistive Torque

Advanced Science, EarlyView.
In this paper, we present a wheel‐shaped direct‐current piezoelectric generator (DC‐PG) that fundamentally overcomes these constraints by producing phase‐stable DC electricity directly from rolling motion. By embedding this system into suitcase wheels, we demonstrated a fully integrated real‐time location tracking system powered solely by mechanical ...
Hyun Soo Kim, Hyunseok Song, In Woo Oh, Dong‐Gyu Lee, Tae Kyoung Yoon, Jeyeon Lee, Byoung Jin Yoon, So‐Min Song, Iman M. Imani, Seohyun Cho, Seong Jin Kim, Chong‐Yun Kang, Sahn Nahm, Yong Seok Park, Kyung‐Hoon Cho, Jungho Ryu, Jeong Min Baik, Jun Chen, Sunghoon Hur, Hyun‐Cheol Song   +19 more
wiley   +1 more source

Auto-updating model-based control for thrust variation mitigation and acceleration performance enhancement of gas turbine aero-engines

Propulsion and Power Research
Model-based control shows promising potential for engine performance improvement and future aero-propulsion requirements. In this paper, an auto-updating thrust variation mitigation (AuTVM) control approach using on-board model strategies is proposed for
Zhiyuan Wei, Shuguang Zhang
doaj   +1 more source

Energy, exergy, thermoecologic, environmental, enviroeconomic and sustainability analyses and assessments of the aircraft engine fueled with biofuel and jet fuel. [PDF]

J Therm Anal Calorim, 2023
Akdeniz HY, Balli O, Caliskan H.
europepmc   +1 more source

Broadband Achromatic Programmable Electromagnetic Camouflage via Fluidic‐Accessible Metasurface

Advanced Science, EarlyView.
A fluidic access metasurface enables dynamic, broadband electromagnetic illusions. By physically reconstructing conductive patterns with liquid metal, the metasurface achieves real‐time, pixel‐level control over phase dispersion. This allows for the programmable generation of arbitrary strong scattering point arrays, effectively deceiving high ...
Shipeng Liu, Jiahao Zhang, Jiale Wang, Zeyao Chen, Zhaotong Yu, Jinhong Luo, Jiabao Luo, Rujia Cao, Shuxi Gong, Qingxin Guo, Ping Li, Rujiang Li, Ke Chen, Yongtao Jia, Ying Liu   +14 more
wiley   +1 more source

An enhanced CNN-LSTM remaining useful life prediction model for aircraft engine with attention mechanism. [PDF]

PeerJ Comput Sci, 2022
Li H, Wang Z, Li Z.
europepmc   +1 more source

Jet aircraft emissions during cruise: Present and future [PDF]

Forecasts of engine exhaust emissions that may be practicably achievable for future commercial aircraft operating at high altitude cruise conditions are compared to cruise emission for present day aircraft.
Grobman, J. S.
core   +1 more source

Thermally Programmable Two‐Port Non‐Hermitian Acoustic Metastructure for Broadband and Direction‐Dependent Absorption

Advanced Science, EarlyView.
A thermally programmable two‐port non‐Hermitian acoustic metastructure is presented, where temperature acts as a non‐geometric tuning variable. Thermal modulation reconfigures impedance matching and loss‐leakage coupling, enabling exceptional‐point driven, broadband, and direction‐dependent sound absorption without requiring geometric reconfiguration ...
Zichao Guo, Zhendong Li, Ziping Lei, Zirui Yang, Kexin Zeng, Zheng Fan, Zhonggang Wang   +6 more
wiley   +1 more source

Assessment of the Effect of Cleanliness on the Visual Inspection of Aircraft Engine Blades: An Eye Tracking Study. [PDF]

Sensors (Basel), 2021
Aust J, Mitrovic A, Pons D.
europepmc   +1 more source

Multi-fuel rotary engine for general aviation aircraft [PDF]

Design studies of advanced multifuel general aviation and commuter aircraft rotary stratified charge engines are summarized. Conceptual design studies were performed at two levels of technology, on advanced general aviation engines sized to provide 186 ...
Ellis, D. R., Jones, C., Meng, P. R.
core   +1 more source