Results 61 to 70 of about 7,948 (233)

Mental Workload Measurement in Helicopter Maintenance: Comparing Virtual Reality Simulation and Real‐World Conditions

Human Factors and Ergonomics in Manufacturing &Service Industries, Volume 36, Issue 2, March 2026.
ABSTRACT Designing tomorrow's maintenance systems with a human‐centered approach is crucial to ensure optimal safety and performance. A key prerequisite for achieving this goal is to anticipate operators' cognitive behavior early in the design cycle. This study aims to determine whether the combination of mental workload measurement tools, including ...
Lorrys Berthon, Fabien Bernard, Sylvain Fleury, Raphaël Paquin, Simon Richir   +4 more
wiley   +1 more source

Interactional aerodynamics and acoustics of a hingeless coaxial helicopter with an auxiliary propeller in forward flight [PDF]

, 2008
The aerodynamics and acoustics of a generic coaxial helicopter with a stiff main rotor system and a tail- mounted propulsor are investigated using Brown's Vorticity Transport Model.
Brown, R.E., Kenyon, A.R., Kim, Hyo Wan, Kenyon, Adam R., Duraisamy, K., Kim, H.W., Duraisamy, Karthikeyan, Brown, Richard   +7 more
core  

Ellipsoid‐Based Interval‐Type Uncertainty Model Updating Based on Riemannian Manifold and Gaussian Process Model

International Journal of Mechanical System Dynamics, Volume 6, Issue 1, Page 140-152, March 2026.
ABSTRACT Modern engineering systems require advanced uncertainty‐aware model updating methods that address parameter correlations beyond conventional interval analysis. This paper proposes a novel framework integrating Riemannian manifold theory with Gaussian Process Regression (GPR) for systems governed by Symmetric Positive‐Definite (SPD) matrix ...
Yanhe Tao, Qintao Guo, Jin Zhou, Cheng Yi   +3 more
wiley   +1 more source

Drones: Emergence of a transformative technology for island rodent eradications

Conservation Science and Practice, Volume 8, Issue 3, March 2026.
Drones have emerged as a potentially powerful tool to address an ongoing need for alternative rodent eradication solutions on remote islands. This potential has now been demonstrated in a diverse set of operations across the Pacific. In the coming decades, this novel toolset also offers the possibility to step beyond existing paradigms and imagine a ...
Donal Smith, Rohan H. Clarke, Doug Gillings, David Will   +3 more
wiley   +1 more source

The flow field around a rotor in axial descent [PDF]

, 2005
Measurements of the flow field around a model rotor descending axially into its own vortex wake have been performed using particle image velocimetry (PIV). At low descent rates, the expected cylindrical down-flow structure below the rotor is observed. At
Brown, R.E., Gillies, E.A., Green, R.B.
core   +1 more source

Advanced Ceramics in Aerospace and Defense: The Interrelationship between Traditional and Additive Manufacturing Approaches

Advanced Materials Technologies, Volume 11, Issue 3, 5 February 2026.
Additive manufacturing revolutionizes production by enabling on‐demand, customized, and sustainable manufacturing with streamlined supply chains. While metal and polymer AM are well‐established, advanced ceramic AM is rapidly emerging, overcoming traditional material challenges.
Kateryna Oleksandrivna Shvydyuk, Senentxu Lanceros‐Mendez, Abílio Pereira Silva   +2 more
wiley   +1 more source

Wake dynamics and rotor-fuselage aerodynamic interactions

, 2009
The unsteady loads experienced by a helicopter are known to be strongly influenced by aerodynamic interactions between the rotor and fuselage; these unsteady loads can lead to deficiencies in handling qualities and unacceptable vibratory characteristics ...
Brown, R.E., Kenyon, A.R.
core   +1 more source

Time domain System Identification of Longitudinal Dynamics of Single Rotor Model Helicopter using SIDPAC [PDF]

Mehran University Research Journal of Engineering and Technology, 2015
This paper presents a time-domain approach for identification of longitudinal dynamics of single rotor model helicopter. A frequency sweep excitation input signal is applied for hover flying mode widely used for space state linearized model.
Arbab Nighat Khizer, Imtiaz Hussain, Wanod Kumar   +2 more
doaj  

Advances in Delamination Analysis and Damage Prediction: A Comprehensive Review on Polymer Composite Materials

Engineering Reports, Volume 8, Issue 2, February 2026.
This comprehensive study advances delamination analysis in composites through innovative computational methods, experimental validation techniques, and predictive algorithms, collectively enhancing damage progression prediction and structural health monitoring for improved integrity in high‐performance applications.
Dhivya Elumalai, Ananda Babu Arumugam, Yitbarek Gashaw Tadesse, Mesfin Kebede Kassa, Mohit Gupta   +4 more
wiley   +1 more source

Research of Wind–Wave–Ship Coupled Effects on Ship Airwake and Helicopter Aerodynamic Characteristics

Journal of Marine Science and Engineering
The oceanic wind and waves, as well as the resultant ship motions, significantly impact the ship airwake and the operation of shipborne helicopters. A numerical method coupling wind, wave, ship and helicopter is developed using multiphase flow, in which ...
Kun Zong, Luyao Qi, Yongjie Shi, Wei Han, Shan Ma   +4 more
doaj   +1 more source