Results 31 to 40 of about 21,160 (284)

Recursive least squares for online dynamic identification on gas turbine engines [PDF]

, 2016
Online identification for a gas turbine engine is vital for health monitoring and control decisions because the engine electronic control system uses the identified model to analyze the performance for optimization of fuel consumption, a response to ...
Nalianda, Devaiah, Nikolaidis, Theoklis, Zhou, Li   +2 more
core   +1 more source

Deep Reinforcement Learning‐Based Control for Real‐Time Hybrid Simulation of Civil Structures

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Real‐time Hybrid Simulation (RTHS) is a cyber‐physical technique that studies the dynamic behavior of a system by combining physical and numerical components that are coupled through a boundary condition enforcer. In structural engineering, the numerical components are subjected to environmental loads that become dynamic displacements of the ...
Andrés Felipe Niño, Alejandro Palacio‐Betancur, Piedad Miranda‐Chiquito, Juan David Amaya, Christian E. Silva, Mariantonieta Gutierrez Soto, Luis Felipe Giraldo   +6 more
wiley   +1 more source

DLR TAU-Code uRANS Turbofan Modeling for Aircraft Aerodynamics Investigations

Aerospace, 2019
In the context of an increased focus on fuel efficiency and environmental impact, turbofan engine developments continue towards larger bypass ratio engine designs, with Ultra-High Bypass Ratio (UHBR) engines becoming a likely power plant option for ...
Arne Stuermer
doaj   +1 more source

Energy Optimization Analysis of Turbofan Engine for More-Electric Civil Aircraft

IEEE Access, 2020
The civil aviation industry is moving into the more-electric environment where the civil aircraft uses electricity to meet the multiple energy demands of the associated aircraft subsystems.
Yuanchao Yang, Hao Li, Chen Yu
doaj   +1 more source

Resource reallocation across successive systemic innovations: How Rolls‐Royce shaped the evolution of the turbojet, turboprop, and turbofan

Strategic Management Journal, EarlyView.
Abstract Research Summary Despite the importance of resource reallocation in shaping a variety of strategic outcomes, strategy scholars have paid only limited attention to the processes by which firms reallocate their resources across successive systemic innovations.
Gino Cattani, Mariano Mastrogiorgio, Giuseppe Carignani   +2 more
wiley   +1 more source

Identification of Missing Knowledge in MBSE System Models Using Graph‐Based Machine Learning

Systems Engineering, EarlyView.
ABSTRACT The design and development of complex aerospace systems pose significant challenges due to their growing complexity. Iterative design processes, guided by formal specifications, strive to refine initially vague characteristics through multiple stages.
Esma Karagoz, Olivia J. Pinon Fischer, Dimitri Mavris   +2 more
wiley   +1 more source

Status of advanced turboprop technology [PDF]

, 1978
Research is reviewed in the following areas: turboprop powered transport aircraft; wind tunnel aerodynamic and acoustics tests of model propellers; turboprop maintenance; and wind tunnel tests on airframe-turboprop interactions.
Dugan, J. F., Miller, B. A., Sagerser, D. A.   +2 more
core   +1 more source

A Visualization Verification Method for Startup Risk of Substation Equipment Based on Multidimensional Graph Models

Engineering Reports, Volume 7, Issue 11, November 2025.
Based on a multi‐dimensional diagram model, a technique for visual verification of the risk of starting substation equipment is studied. This method can effectively and precisely verify the possible risks during the substation equipment startup and enhance the power system's operational safety.
Lifan Mao, Huang Chen, Yongqi He, Chuanpu Zhu, Chao Chen   +4 more
wiley   +1 more source

Adaptive Neuro‐Fuzzy Inference System‐Based Sliding Mode Control in the Presence of External Disturbances and Parameter Variation for Quadcopter UAV

Engineering Reports, Volume 7, Issue 10, October 2025.
The helical trajectory of a quadcopter is a three‐dimensional path in the presence of disturbance. ABSTRACT Quadrotor unmanned aerial vehicles (UAVs) are increasingly becoming essential tools in applications such as surveillance, military operations, crop monitoring, search and rescue, and inspection of hazardous terrain.
Daniel Fikadu Assefa, Elisabeth Andarge Gedefaw, Chala Merga Abdissa, Lebsework Negash Lemma   +3 more
wiley   +1 more source

Technologies for jet noise reduction in turbofan engines

Aviation, 2012
Turbofan engines are commonly used for commercial transport due to their advantages of higher performance and lower noise. Jet noise is one of the principal noise sources of turbofan aeroplane engines and remains an acute environmental problem that ...
Mofid Gorji-Bandpy, Mohammadreza Azimi
doaj   +1 more source