Results 41 to 50 of about 915,787 (243)

NUMERICAL SIMULATION RESEARCH ON THE ALUMINUM ALLOY THIN PLATE IMPACTED BY BLADE PROJECTILE

open access: yesJixie qiangdu, 2019
The simulation model of 2 mm thick 2 A12 aluminum alloy thin plate impacted by blade projectile was established by using the ABAQUS finite element software, including impact of yaw and oblique, and the yaw angle is 0-90° and the incidence angle is 0-60°.
ZHANG TieCun   +3 more
doaj  

Influence of yaw on propeller aerodynamic characteristics

open access: yesEPJ Web of Conferences, 2018
Between the propeller axis and free stream direction, it can still be a non-zero yaw angle. This paper introduces some propeller experiments, in which the propeller aerodynamic characteristics have been determined in various yaw angle and different ...
Nguyen Van Bang   +3 more
doaj   +1 more source

Task‐Oriented Path Planning Towards Autonomous Sensor Network Deployment in Rainforest Canopies

open access: yesAdvanced Robotics Research, EarlyView.
An informative path planner for drone‐based deployment of wireless sensor networks in rainforest canopies is presented, addressing key challenges in large‐scale biodiversity monitoring. By integrating canopy surface detection with connectivity‐aware sampling under strict flight constraints, the approach enables efficient and reliable aerial sensor ...
Rita Santos Raminhos, Salua Hamaza
wiley   +1 more source

The effect of rectangular synthetic jet to the flat plate boundary layer in low Reynolds number

open access: yesEPJ Web of Conferences, 2012
The objective of this study is investigating the impact of synthetic jet on the boundary layer and optimising the slot yaw angle (β). A rectangular synthetic jet with yaw angle relative to freestream is applied for flat plate boundary layer control ...
Kim Young-Hwan
doaj   +1 more source

Wind farm power optimization via yaw angle control: A wind tunnel study [PDF]

open access: yes, 2019
Yaw angle control is known nowadays as a promising and effective technique to mitigate wake effects in wind farms. In this paper, we perform wind tunnel experiments to study the performance of a model wind farm with five turbine rows under a wide variety
Fernando Porté-Agel   +3 more
core   +2 more sources

A Rigid–Foldable Kirigami‐Inspired Metamorphic Mechanism With Programmable Motion Modes and Self‐Locking

open access: yesAdvanced Science, EarlyView.
Geometric constraint reconfiguration enables a rigid–foldable kirigami‐inspired mechanism to switch between twisting, directional translation, and self‐locking states. By encoding multifunctionality directly into its architecture, the mechanism achieves multimodal motion and passive locking without reassembly, providing a compact platform for adaptive ...
Jianlin Wang, Zhongmin Song, Ketao Zhang
wiley   +1 more source

Performance Estimation and Ex Vivo Validation of Untethered Magnetic Robots in Soft Tissue

open access: yesAdvanced Science, EarlyView.
This study presents an empirical model that quantitatively predicts the step‐out frequency of screw‐type untethered magnetic robots (UMRs) in soft viscoelastic environments, including ex vivo brain tissue. By integrating key parameters into a dimensionless framework, the model enables estimation of robot performance across a range of biological ...
Leendert‐Jan W. Ligtenberg   +19 more
wiley   +1 more source

Optimization of wind farm performancebased on yaw angle control

open access: yes, 2014
Inside wind farms, the wakes of upwind turbines result in a significant reduction in power production. Yawing upwind turbines can be used to deflect the wakes away from turbines.
Dios Romero, Isabele   +2 more
core   +6 more sources

Additional Yaw Moment Control of a 4WIS and 4WID Agricultural Data Acquisition Vehicle

open access: yesInternational Journal of Advanced Robotic Systems, 2015
A four-wheel independent steering (4WIS) and a four-wheel independent driving (4WID) agricultural data acquisition vehicle (ADAV) system was designed to monitor and manage the growing status of bio-energy crops.
Dawei Jiang   +4 more
doaj   +1 more source

Numerical investigation on the aerodynamics of a simplified high-speed train under crosswinds

open access: yesTheoretical and Applied Mechanics Letters, 2015
The yaw effect of the side flow around a high-speed train is studied by means of large eddy simulation at two typical yaw angles of φ=30° and 60°, respectively.
Yueqing Zhuang, Xiyun Lu
doaj   +1 more source

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