Results 171 to 180 of about 310,977 (203)
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Failure analysis of nose landing gear assembly
Engineering Failure Analysis, 2003Abstract This paper analyses the causes of the incident of an F-4 which landed abnormally due to a crack in the nose landing gear hydraulic actuator cylinder. Striations, typical of a fatigue crack, were observed on the fracture surface and a large quantity of corrosive oxide was detected in the initial stage of the crack.
Hong-Chul Lee +2 more
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Cracking in an Aircraft Nose Landing Gear Strut
1993Abstract A crack was detected in one arm of the right-hand horizontal brace of the nose landing gear shock strut from a large military aircraft. The shock strut was manufactured from a 7049 aluminum alloy forging in the shape of a delta. A laboratory investigation was conducted to determine the cause of failure. It was concluded that the
S.A. Barter, N. Athiniotis, G. Clark
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Measuring of a Nose Landing Gear Load during Take-Off and Landing
Applied Mechanics and Materials, 2016This article provides information about in-flight measurement of a small sport aircraft. The strain gauges were used as sensors for load monitoring on the nose landing gear structure. To obtain overall forces it was necessary to do the calibration procedure. After the calculation of strain gauge coefficients the equations for calculating of total force,
Ivo Jebáček, Marek Horák
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Characterization of Boeing 777 Nose Landing Gear to Better Withstand Rough Landing
International Journal of Engineering Research in Africa, 2023An important role a landing gear plays is that it aids in the landing and takeoff of aircraft. The landing gear must be designed in such a way that it can take these stresses in static and dynamic situations. This is to accommodate both rough and smooth landings that result from various loads acting upon it, such as drag force, vertical load, and side ...
Abdulbaqi Jinadu +3 more
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Topology optimization of Nose Landing Gear of Aircraft for weight reduction
International Journal of Innovative Research in Engineering, 2023Design, Analysis, test and validation process of a NLG brace assembly of aircraft is mentioned in this study. The Nose Landing Gear is designed with for the purpose of attaching landing gear and wheel Moreover works on weight reduction, cost reduction. Key Word: ANSYS, NLG.
Nishanth S +2 more
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Design of a PMSM for the electric steering of the nose landing gear
2016 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), 2016This paper is focused on the design of a PMSM for the electric steering of a nose landing gear. The traditional hydraulic steering systems utilized in a nose landing gear are usually based on a rack and pinion solution with two hydraulic pistons at the external sides.
BRANDO, Gianluca +4 more
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Kinematics of Nose Landing Gear for RLGS Mechanism of MALE UAV
2021 International Bhurban Conference on Applied Sciences and Technologies (IBCAST), 2021Electrical linear actuators reduce the weight of landing gear retraction / extension mechanism which helps in keeping the gross takeoff weight of aircraft weight low. Reduction in weight of the aircraft has manifold advantages in which noticeable are increased endurance, range, climb performance, acceleration performance and fuel efficiency.
Taimur Ali Shams +5 more
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On the effectiveness of shimmy dampers in stabilizing nose landing gears
Aerospace Science and Technology, 2019Abstract The challenge of nose landing gear shimmy vibrations is largely addressed through adding passive shimmy suppression devices to the gear, known as shimmy dampers. Despite the wide treatment of the shimmy modeling in the literature using various approaches, little is known about shimmy dampers' performance and their influence on the dynamics ...
Mohsen Rahmani, Kamran Behdinan
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Hopf Bifurcation Analysis of a Nose Landing Gear System of Aircraft
International Journal of Bifurcation and ChaosThe Hopf bifurcation problem of a nose landing gear system is investigated. Taking the nearly smooth landing gear system with high-order nonlinear terms as the research object, the nose landing gear system is simplified to a plane dynamic system considering nonlinear factors by using the center manifold simplification method.
Yu Zhang, Wen Zhang, Yuan Yue
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On the analysis of passive vibration mitigation of nose landing gears
2019Shimmy is the self-excited rotational-lateral oscillation encountered in some wheeled structures. In landing gears, shimmy can lead to passenger discomfort, impairing pilot’s visibility, and even structural failure of the gear system. The challenge of nose landing gear shimmy vibrations is largely addressed through adding passive shimmy suppression ...
M. Rahmani, K. Behdinan
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