Results 21 to 30 of about 106,651 (339)

Research on Low Frequency Coupled Brake-induced Vibration of Telescopic Landing Gear with Two Wheels

open access: yesHangkong gongcheng jinzhan, 2022
Currently,the research on the low frequency vibration coupled with brake problem of landing gear is focused on longitudinal single-degree-of-freedom coupling vibration.By establishing the multi-body dynamics model of multi-degree-of-freedom low-frequency
CHEN Shuai   +4 more
doaj   +1 more source

Influence of Cabin Doors on the Flow Field and Aerodynamic Noise of Landing Gear

open access: yesHangkong gongcheng jinzhan, 2021
The front landing gear generally has a bilateral symmetrical doors,which is different from the main landing gear.The opened landing gear door can interfere with the flow field and noise of the landing gear and reflect when the civil aircraft enters the ...
MU Yongfei, LI Jie
doaj   +1 more source

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

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

A Novel Safe Life Extension Method for Aircraft Main Landing Gear Based on Statistical Inference of Test Life Data and Outfield Life Data

open access: yesSymmetry, 2023
Safe life extension work is demanded on an aircraft’s main landing gear (MLG) when the outfield MLG reaches the predetermined safe life. Traditional methods generally require costly and time-consuming fatigue tests, whereas they ignore the outfield data ...
Yueshuai Fu, Huimin Fu, Shenmin Zhang
semanticscholar   +1 more source

Structural Optimization of the Lower Door of the Main Landing Gear of an Aircraft

open access: yesJournal of Physics: Conference Series, 2023
In this paper, the topology optimization algorithm is used to optimize the main structure of the main landing gear lower door of an aircraft by combining the structural strength, structural stiffness, and processing technology [1-2].
Guiqiang Yang   +3 more
semanticscholar   +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

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