Results 11 to 20 of about 1,840 (266)

Research Progress on the Effect of Structural Clearance of Aircraft Landing Gear on Shimmy Stability

open access: yesHangkong gongcheng jinzhan, 2022
As one of the main factors affecting the shimmy stability of aircraft in high speed rolling,the structural clearance of landing gear determines the safety and comfort of aircraft rolling.In this paper,the existing form of landing gear structural ...
XIANG Zongwei   +5 more
doaj   +1 more source

Inerter-Based Configurations for Main-Landing-Gear Shimmy Suppression [PDF]

open access: yesJournal of Aircraft, 2017
The work reported in this paper concentrates on the possibility of suppressing shimmy oscillations of landing gear more effectively using a linear passive suppression device incorporating inerter. The inerter is a one-port mechanical device with the property that the applied force is proportional to the relative acceleration between its terminals.
Li, Yuan   +2 more
openaire   +2 more sources

Optimisation of shimmy suppression device in an aircraft main landing gear [PDF]

open access: yesJournal of Physics: Conference Series, 2016
In earlier publications of landing gear shimmy analysis, efforts have concentrated on predicting the onset of shimmy instability and investigating how to stabilise shimmy-prone landing gears. Less attention has been given to the improvements of shimmy performance for a gear that is free from dynamic instability.
Li, Yuan   +2 more
openaire   +3 more sources

A Rational Numerical Method for Simulation of Drop-Impact Dynamics of Oleo-Pneumatic Landing Gear

open access: yesApplied Sciences, 2021
Oleo-pneumatic landing gear is a complex mechanical system conceived to efficiently absorb and dissipate an aircraft’s kinetic energy at touchdown, thus reducing the impact load and acceleration transmitted to the airframe.
Rosario Pecora
doaj   +1 more source

Study on Landing Gear’s Load for Airship Based on the Double-springs’ Vibration Model

open access: yesHangkong gongcheng jinzhan, 2020
The FAA-P-8110-2 Airship Design Criteria defines the airworthiness standard requirement. In order to make the design of landing gear to fulfill the requirements perfectly, a methodology of load calculation for landing gear is presented in this paper ...
HU Xiaojin, XIAO Peng, HE Wei
doaj   +1 more source

Shock and harmonic response analysis of UAV nose landing gear system with air damper

open access: yesCogent Engineering, 2021
This research presents a response analysis of a UAV nose landing gear system equipped with an air damper under shock and harmonic excitation. The study begins with dynamic modeling of the UAV landing gear system.
Lovely Son   +4 more
doaj   +1 more source

Semi-Active Control for a Helicopter with Multiple Landing Gears Equipped with Magnetorheological Dampers

open access: yesApplied Sciences, 2021
Due to their extensive use in various applications, helicopters need to be able to land in a variety of conditions. Typically, a helicopter landing gear system with skids or passive wheel-dampers is designed based on only one critical touchdown condition.
Quoc Viet Luong   +2 more
doaj   +1 more source

A Numerical Study of the Wind Speed Effect on the Flow and Acoustic Characteristics of the Minor Cavity Structures in a Two-Wheel Landing Gear

open access: yesApplied Sciences, 2021
The landing gear is widely concerned as the main noise source of airframe noise. The flow characteristics and aerodynamic noise characteristics of the landing gear were numerically simulated based on Large Eddy Simulation and Linearized Euler Equation ...
Longlong Huang   +5 more
doaj   +1 more source

Effect of Joint Clearance on Landing Gear Retraction Failure

open access: yesAerospace, 2021
A simple method of investigating the effect of joint clearances on landing gear retraction failure is presented and applied to the main landing gear with a single sidestay and a hydraulic actuator.
Sungjoon Cho, Hwanjeong Cho, Dooyoul Lee
doaj   +1 more source

Dynamic Fatigue Tests Of Landing Gears

open access: yesFatigue of Aircraft Structures, 2020
Landing gears are one of the main components of an aircraft. The landing gear is used not only during take-off and landing but also, in most cases, during ground manoeuvres.
Skorupka Zbigniew
doaj   +1 more source

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