Results 151 to 160 of about 58,129 (202)

Yaw Card Influence on Stability and Yaw Growth for Spin-Stabilized Projectiles.

1997
Abstract : 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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A compensated yaw-moment-based vehicle stability controller

International Journal of Vehicle Design, 2008
This paper describes an ESP (electronic stability program) controller system which acts on the brake system to generate a corrective yaw moment that helps the vehicle to follow the course desired by the driver. The corrective yaw moment, referred to as compensated yaw moment, is based on the estimation of the desired yaw rate as well as the sideslip ...
null Chih-Keng Chen, null Trung-Kien Dao, null Min-Fang Lo   +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), 2013
We 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, Robert J, Dahlstrom, John P, Condon, Daniel S, Hedin   +3 more
openaire   +2 more sources

Yaw stability in gliding birds

Journal of Ornithology, 2005
A new concept for describing the yaw stability in gliding birds is presented. This concept introduces dynamic stiffness in yaw as an appropriate indication of stability. Other than the conventional metric of static yaw stability given by the gradient of the aerodynamic yawing moment with respect to the sideslip angle, the dynamic stiffness does not ...
openaire   +1 more source

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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Downwind wind turbine yaw stability and performance

Renewable Energy, 2015
Abstract 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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Tail effects on yaw stability in birds

Journal of Theoretical Biology, 2007
Bird 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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Yaw torque control of electric vehicle stability

2012 IEEE 6th International Conference on Information and Automation for Sustainability, 2012
The 7 degree of freedom (DOF) vehicle model and non-linear tire model were established based on the stability control of the electric vehicle with on-hub motors. Then the stability control strategy based on the yaw torque was presented. The idea sideslip angle at the center of gravity (COG) and idea yaw rate were calculated based on linear 2 DOF ...
null Hongtian Zhang, null Jinzhu Zhang
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Yaw Stability Control of Tractor Semi-Trailers

SAE Technical Paper Series, 2008
<div class="htmlview paragraph">Tractor semi-trailer stability during emergency braking and steering maneuvers has been an issue that was improved through implementation of Anti-lock Braking Systems (ABS). Although some improvements have been achieved, the need for new control methodologies is evident from the number of accidents reported by ...
Seyed Hossein Tamaddoni, Saied Taheri
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Vehicle yaw stability control and its integration with roll stability control

2008 Chinese Control and Decision Conference, 2008
The paper presents a vehicle yaw stability control (YSC) strategy devoted to prevent vehicles from spinning and drifting out. With yaw stability control system, counter braking was applied at individual wheels as needed until steering control and vehicle stability were regained. However, YSC system may not react properly to, or even deteriorate many on-
null Shuwen Zhou, null Lixin Guo, null Siqi Zhang   +2 more
openaire   +1 more source