Results 11 to 20 of about 893 (226)

Dual-Boundary Mechanism of Shimmy over the Full Speed Range in Nose Landing Gear and Inerter-Based Shimmy Suppression Design

open access: yesAerospace
To overcome the limitation of conventional nose landing gear shimmy damper design, which is mainly based on the critical damping for torsional shimmy while neglecting the high-damping-side instability boundary, this study establishes a nonlinear shimmy ...
Jian Wei   +5 more
doaj   +2 more sources

Study on the Modeling of Vehicle Self- excited Shimmy

open access: yesJixie chuandong, 2015
Aiming at the current situation of existing vehicle dynamics model does not have the ability to accurate simulate the dynamic process of vehicle shimmy,a vehicle model is developed for simulation of the dynamics process of vehicle self- excited shimmy ...
Tang Wang, Hai Chenguang
doaj   +2 more sources

Shimmy: Gymnasium and PettingZoo Wrappers for Commonly Used Environments

open access: yes, 2023
Shimmy is an API conversion tool providing Gymnasium and PettingZoo bindings for popular external reinforcement learning environments.If you use this software, please cite it using the metadata from this ...
Terry, Jordan K   +3 more
core   +2 more sources

Empowering and conquering infirmity of visually impaired using AI‐technology equipped with object detection and real‐time voice feedback system in healthcare application

open access: yesCAAI Transactions on Intelligence Technology, EarlyView., 2023
Abstract The Internet of Things is emerging as a crucial technology in aiding humans and making their lives easier. Among the human population, a large percentage of people suffer from disabilities resulting in challenges in everyday life particularly people with visual disabilities.
Hania Tarik   +8 more
wiley   +1 more source

Active Control of Shimmy Vibration in Aircraft Nose Landing Gear using Fuzzy and NARMA-L2 Controllers [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2023
In this paper, control of shimmy vibration of aircraft nose landing gear is presented. In this regard, the NARMA-L2 neural controller and a robust controller using a fuzzy method are designed and compared. The efficiency of these controllers was measured
Milad Yazdanpanah   +2 more
doaj   +1 more source

Bifurcation analysis of nose landing gear shimmy with lateral and longitudinal bending [PDF]

open access: yes, 2009
We develop and study a model of an aircraft nose landing gear with torsional, lateral and longitudinal degrees of freedom. The corresponding three modes are coupled in a nonlinear fashion via the geometry of the landing gear in the presence of a nonzero ...
Thota, P   +5 more
core   +1 more source

Influence of Nose Landing Gear Torsional Damping on the Stability of Aircraft Taxiing Direction

open access: yesAerospace, 2022
The design of the nose landing gear (NLG) torsional damping is very important to avoid the taxiing vibration of the aircraft. On the one hand, increasing the torsional damping can suppress the nose wheel shimmy.
Yiyao Jiang   +5 more
doaj   +1 more source

Influence of Variable Side-Stay Geometry on the Shimmy Dynamics of an Aircraft Dual-Wheel Main Landing Gear [PDF]

open access: yes, 2013
Commercial aircraft are designed to fly but also need to operate safely and efficiently as vehicles on the ground. During taxiing, take-off, and landing the landing gear must operate reliably over a wide range of forward velocities and vertical loads ...
Howcroft, Chris   +3 more
core   +1 more source

[CODE] Farama-Foundation/Shimmy: Shimmy 1.3.0

open access: yes, 2023
Shimmy 1.3.0 Release Notes This release updates Shimmy's Melting Pot wrapper to use Melting Pot's pypi release, and includes a minor rendering bugfix for dm_control, Note: Melting Pot requires python version >= 3.10, please upgrade your python ...
Cao, Yunhao   +11 more
core   +1 more source

Modeling and Analysis of Vehicle Shimmy with Consideration of the Coupling Effects of Vehicle Body

open access: yesShock and Vibration, 2019
Based on the Lagrange equation, a 9-degrees-of-freedom shimmy model with consideration of the coupling effects between the motions of vehicle body and the shimmy of front wheels and a 5-degrees-of-freedom shimmy model ignoring these coupling effects for ...
Xiaogao Li   +3 more
doaj   +1 more source

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