Results 51 to 60 of about 30,676 (232)

Aerodynamic and acoustic analysis of helicopter main rotor blade tips in hover [PDF]

, 2016
Purpose: The design of main rotor blade tips is of interest to helicopter manufactures since the tip details affect the performance and acoustics of the rotor. The paper aims to discuss this issue.
Barakos, George, Batrakov, Andrei Sergeevich, Garipova, Lyaysan Ildusovna, Kusyumov, Alexander Nikolaevich, Mikhailov, Sergey Anatolievich   +4 more
core   +1 more source

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

High-performance software control platform designed for the autonomous navigation of quad-rotor helicopter

Advances in Mechanical Engineering, 2016
In recent years, unmanned aerial vehicles have gained increasing popularity. They are employed in many applications due to its features in terms of flexibility, low cost, and small size.
Jialiang Wang, Jianli Ding, Guo Li, Weidong Cao, Chunbo Liu, Hai Zhao   +5 more
doaj   +1 more source

THE EFFECT OF DIFFERENT OPTIONS OF BLADES MAIN ROTOR ON THE X-SHAPED TAIL ROTOR OF THE MI-171 LL

Научный вестник МГТУ ГА, 2018
This paper describes the effect of different rotor blades on the X-shaped tail rotor of the Mi-171 LL, observed conducting flight tests. The tests were carried out on the same helicopter in the similar atmospheric conditions.The objective of the tests ...
V. A. Ivchin, V. A. Nikiforov, K. Yu. Samsonov   +2 more
doaj   +1 more source

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

Configuration Study of Electric Helicopters for Urban Air Mobility

Aerospace, 2021
There is currently interest in the design of small electric vertical take-off and landing aircraft to alleviate ground traffic and congestion in major urban areas.
Julia A. Cole, Lauren Rajauski, Andrew Loughran, Alexander Karpowicz, Stefanie Salinger   +4 more
doaj   +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

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

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

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