Results 211 to 220 of about 6,933 (263)
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Downwind wind turbine yaw stability and performance
Renewable Energy, 2015Abstract In this experimental work, the yaw stability and performance of three different downwind rotors are measured and compared to those of the corresponding upwind rotors. A modular scale-model wind turbine that allows for either upwind or downwind operation, with a range of rotor cone and yaw angles, is used. The measurements, at near full-scale
C. Kress, N. Chokani, R.S. Abhari
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A Direct Yaw Control Algorithm for On- and Off-Road Yaw Stability
SAE International Journal of Materials and Manufacturing, 2011<div class="section abstract"><div class="htmlview paragraph">Models for off-road vehicles, such as farm equipment and military vehicles, require an off-road tire model in order to properly understand their dynamic behavior on off-road driving surfaces.
Brad Hopkins, Saied Taheri
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Vehicle yaw dynamics modelling and analyzing for yaw stability control
Proceedings of 2011 International Conference on Modelling, Identification and Control, 2011Some vehicle yaw dynamics modelling methods are analyzed and a new control-oriented model is proposed in the paper. These vehicle yaw dynamics models are all obtained through simplifying vehicle original physical dynamics, and they all have strong and weak points.
null Hongliang Zhou, null Zhiyuan Liu
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Yaw Card Influence on Stability and Yaw Growth for Spin-Stabilized Projectiles.
1997Abstract : Using an impulse or Dirac delta approach, the stability and growth of yaw for a spin-stabilized projectile as it transits a yaw card range is investigated. The card-induced changes in the complex yaw arm amplitudes and phases are expressed as difference equations.
Kevin S. Fansler, Gene R. Cooper
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An Advanced Yaw Stability Control System
SAE Technical Paper Series, 2017<div class="section abstract"><div class="htmlview paragraph">This paper presents an advanced yaw stability control system that uses a sensor set including an inertial measurement unit to sense the 6 degrees-of-freedom motions of a vehicle.
Jianbo Lu +5 more
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Tail effects on yaw stability in birds
Journal of Theoretical Biology, 2007Bird tails, which are an aerodynamic surface in the horizontal plane, are treated with regard to their effects on yaw stability. Reference is made to wings of very small aspect ratio similar to the values of bird tails in order to identify features which are significant for the aerodynamic yawing moment characteristics due to sideslip. It is shown that
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Development of Vehicle Yaw Stability Controller
SAE Technical Paper Series, 2013<div class="section abstract"><div class="htmlview paragraph">Electronics is widely used for improving the vehicle safety due to its characteristics like fast response, multi sensor interface and implementation of complex control strategy. Already a majority of vehicles are fitted with some kind of Electronic Stability Program (ESP) system ...
Ramanathan Annamalai +5 more
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Hardware-in-the-loop (HIL) results on yaw stability control
2007 IEEE 22nd International Symposium on Intelligent Control, 2007In this work a Vehicle Dynamics Control (VDC) system for tracking desired vehicle behavior is developed. A two degrees of freedom control structure is proposed to prevent vehicle skidding during critical maneuvers through the application of differential braking between right and left wheels in order to control yaw motion.
CERONE, Vito +2 more
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Yaw rate and linear velocity stabilized manual wheelchair
2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2013We present the development of a prototype novel low-power, inexpensive stability control system for manual wheelchairs. Manual wheelchairs, while providing the ability to maneuver in relatively small indoor spaces, have a high center of gravity making them prone to tipping.
Sara J. Seifert +3 more
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Influence of Yaw Cards on the Yaw Growth of Spin-Stabilized Projectiles
Journal of Aircraft, 2001A simple extension of the standard linear theory, describing the free-flight motion of a projectile, now includes the influences due to the projectile impacting yaw cards. The card impacts are modeled as ideal delta function impulses that are shown to alter the usual yawing motion of a spin-stabilized projectile passing through a yaw card range.
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