Results 31 to 40 of about 58,908 (248)

An Investigation of Rotary Drone HERM Line Spectrum under Manoeuvering Conditions

Sensors, 2020
Detecting and identifying drones is of great interest due to the proliferation of highly manoeuverable drones with on-board sensors of increasing sensing capabilities. In this paper, we investigate the use of radars for tackling this problem.
Peter Klaer, Andi Huang, Pascale Sévigny, Sreeraman Rajan, Shashank Pant, Prakash Patnaik, Bhashyam Balaji   +6 more
doaj   +1 more source

Current Tracking Adaptive Control of Brushless DC Motors

International Journal of Adaptive Control and Signal Processing, EarlyView.
In this paper, the current tracking for Brushless Direct Current motors is approached considering uncertainty in the parameters of the motor's model. An adaptive control scheme to compensate electrical parameters uncertainty is proposed without requiring any knowledge of the mechanical parameters.
Fernanda Ramos‐García, Axel Coronado‐Andrade, Gerardo Espinosa‐Pérez, Luis Alvarez‐Icaza   +3 more
wiley   +1 more source

FEM structural analysis from UAV photogrammetry projects. Case study: Twenty Eyes Aqueduct in the Wadi of Carcauz (Almeria, Spain)

Conservation Science in Cultural Heritage
The Twenty Eyes Aqueduct stands as a monumental hydraulic structure with a rich history spanning several centuries, poised to be designated as a heritage asset of cultural interest (Bien de Interés Cultural, BIC).
José Manuel Casimiro-Bernárdez, Patricio Martínez-Carricondo, Francisco Agüera-Vega, Fernando Carvajal-Ramírez   +3 more
doaj   +1 more source

Optimal waypoint assignment for designing drone light show formations

Results in Control and Optimization, 2022
Advancements in technology and new drone policies have boosted the adoption of drones by various industries. With active research and development, ingenious applications using drones are being developed.
Dharna Nar, Radhika Kotecha
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Drones at Our Service [PDF]

Journal of Systemics, Cybernetics and Informatics, 2020
Drones have been of interest over the past several decades and the level of interest, including research interest, has been steadily growing. Drones are also known as unmanned aerial vehicles (UAVs). With the technological advances in hardware, software,
Mohammad Ilyas
doaj  

Asymmetric Arc Routing by Coordinating a Truck and Multiple Drones

Sensors, 2022
Unmanned Aerial Vehicles, commonly known as drones, have been widely used in transmission line inspection and traffic patrolling due to their flexibility and environmental adaptability.
Shuangxi Tian, Honghui Chen, Guohua Wu, Jiaqi Cheng   +3 more
doaj   +1 more source

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

Advanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice, Krzysztof S. Stopka, Michael D. Sangid   +2 more
wiley   +1 more source

Analysis of MAV Rotors Optimized for Low Noise and Aerodynamic Efficiency with Operational Constraints

Fluids
The rapid growth of drone use in urban areas has prompted authorities to review airspace regulations, forcing drone manufacturers to anticipate and reduce the noise emissions during the design stage.
Pietro Li Volsi, Gianluigi Brogna, Romain Gojon, Thierry Jardin, Hélène Parisot-Dupuis, Jean-Marc Moschetta   +5 more
doaj   +1 more source

Hybrid Auxetic Architectures: Integrating Curvature‐Driven Design for Enhanced Mechanical Tunability and Structural Performance

Advanced Engineering Materials, EarlyView.
Curvature‐tuned auxetic lattices are designed, fabricated, and mechanically characterized to reveal how geometric curvature governs stretchability, stress redistribution, and Poisson's ratio evolution. Photoelastic experiments visualize stress pathways, while hyperelastic simulations quantify deformation mechanics.
Shuvodeep De, Giovanni Meli, Meysam Khalighian, Anahita Emami   +3 more
wiley   +1 more source