Results 1 to 10 of about 6,615 (259)

Nose Landing Gear Shimmy Analysis with Variable System Stiffness Under Time-Varying Load

open access: yesAerospace
Vertical load fluctuations alter nose landing gear (NLG) system stiffness and complicate shimmy dynamics. Based on the full-scale NLG static stiffness test data, the relationship between shock absorber stroke and system stiffness was fitted, and a ...
Yiyao Jiang   +3 more
doaj   +2 more sources

Active Shimmy Control Method for Driverless Electric Vehicle Considering Unknown Sensor Measurement Error via Sampled-Data Output Feedback

open access: yesIEEE Access
Compared with traditional vehicles, driverless electric vehicles equipped with electric wheels are more likely to generate the front wheel shimmy phenomenon, which affects driving comfort and safety. It is necessary to study an active control approach to
Qinghua Meng   +4 more
doaj   +2 more sources

Active Control of Shimmy in Articulated Single-Axle Straddle-Type Monorail Train

open access: yesMachines
The articulated single-axle straddle-type monorail train has many unique advantages, making it the preferred choice for medium-capacity urban rail transit. However, the issue of vehicle shimmy greatly restricts its promotion and application.
Jiachen Song   +3 more
doaj   +2 more sources

Stability analysis of nose gear shimmy with nonlinear characteristics of damper

open access: yesHangkong gongcheng jinzhan, 2023
The shimmy of the front landing gear of an aircraft usually occurs in the process of taking off or landing,which endangers the stability and maneuverability of the aircraft and is a serious aircraft fault.
HONG Yuqing   +3 more
doaj   +1 more source

Research on influence of tire stiffness characteristics on shimmy of large civil aircraft nose landing gear

open access: yesHangkong gongcheng jinzhan, 2023
Tire stiffness is one of the important parameters of tire dynamics model. The influence law of tire stiffness on the shimmy of large civil aircraft nose landing gear can provide reference for the anti-shimmy design of large civil aircraft nose landing ...
FENG Guang   +5 more
doaj   +1 more source

Effect of Multi-Joint Clearance Coupling on Shimmy of Nose Landing Gear

open access: yesAerospace, 2023
The existence of joint clearances in the nose landing gear (NLG) is inevitable and significantly affects shimmy. It was found that the interaction of each joint clearance is closely related to the analysis of shimmy stability.
Guang Feng, Bingyan Jiang, Yiyao Jiang
doaj   +1 more source

Simulation of Nose Landing Gear Shimmy with Flexible Airframe Considered [PDF]

open access: yesXibei Gongye Daxue Xuebao, 2018
Shimmy stability of the nose landing gear of an aircraft is studied in this paper. Firstly, Shimmy model was built considering the dynamic characteristics of the airframe. Then the critical damping, critical velocity and frequency range of the shimmy are

doaj   +1 more source

Evaluation of Joint Clearance Effects on the Shimmy of Nose Landing Gear

open access: yesAerospace, 2023
Through the establishment of a three-dimensional joint clearance model, the effects of joint clearances at different positions on shimmy stability are evaluated. In this paper, considering the radial, axial and coupling characteristics of joint clearance,
Yiyao Jiang   +5 more
doaj   +1 more source

Design and Simulation Analysis of an Electromagnetic Damper for Reducing Shimmy in Electrically Actuated Nose Wheel Steering Systems

open access: yesAerospace, 2022
Based on the technical platform of electrically actuated nose wheel steering systems, a new type of damping shimmy reduction technology is developed to break through the limitations of traditional hydraulic damping shimmy reduction methods, and an ...
Chenfei She   +5 more
doaj   +1 more source

Study on stiffness and shimmy stability of strut-type nose landing gear system

open access: yesHangkong gongcheng jinzhan, 2023
System stiffness (longitudinal, lateral, and torsional stiffness) is a meaningful index for strut nose landing gear design.It arises from profound significance to explore the influence law of system stiffness on shimmy stability for the anti-shimmy ...
FENG Guang   +5 more
doaj   +1 more source

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