Fault Analysis and Solution of an Airplane Nose Landing Gear’s Emergency Lowering

Yin, Yin; Nie, Hong; Wei, Xiaohui; Chen, Heng; Zhang, Ming

doi:10.2514/1.c032351

Cited by 5 publications

(4 citation statements)

References 8 publications

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“…Landing gear design is an important and basic field in aircraft design. The landing gear with good cushioning performance can make the aircraft and landing gear have lower aircraft overload, better stability, comfort, and higher reliability during landing, taxiing, and ground control [1][2] . However, when modeling the landing gear system, it either ignores its internal characteristics [3] , which makes the model error [4] or considers all the characteristics [5] , increasing the design workload and reducing the simulation efficiency.…”

Section: Introductionmentioning

confidence: 99%

Analysis of landing gear simplified modeling and simulation based on amesim

Jia,

Li,

et al. 2024

J. Phys.: Conf. Ser.

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Aiming at the theoretical research of aircraft take-off and landing taxiing control characteristics and real-time interactive application scenarios, the simplified model modeling method of landing gear is studied. Through the reasonable simplification hypothesis of the landing gear pillar, a benchmarked, general, and pillar-type simplified model of the landing gear is formed. In the process of ground motion, based on the force analysis of aircraft taxiing, a six-degree-of-freedom mathematical model of ground taxiing is established. Based on the Amesim six-degree-of-freedom model, the aircraft is built, and the simulation test of aircraft taxiing turning and landing brake is carried out in combination with the simplified take-off and landing model. The results show that the general benchmarked pillar landing gear model formed in this paper is reasonable and feasible, and can quickly construct the aircraft landing gear model, which is convenient for subsequent optimization and design.

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Section: Introductionmentioning

confidence: 99%

Analysis of landing gear simplified modeling and simulation based on amesim

Jia,

Li,

et al. 2024

J. Phys.: Conf. Ser.

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“…As elucidated in [1][2][3][4][5], in modern civil aircraft, the landing gear system is the primary takeoff and landing device, and the landing gear's performance is critical for flight safety. Hydraulic retraction/extension (R/E) of the landing gear is one of the most crucial subsystems on the landing gear, and if it fails during the landing phase, it can easily to cause a serious accident in which the landing gear cannot launch, posing a serious threat to takeoff and landing safety.…”

Section: Introductionmentioning

confidence: 99%

Health Assessment of Landing Gear Retraction/Extension Hydraulic System Based on Improved Risk Coefficient and FCE Model

Duan¹,

Li²,

Cao³

et al. 2022

Applied Sciences

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The health of the landing gear retraction/extension(R/E) hydraulic system may be assessed using fuzzy comprehensive evaluation (FCE), however the traditional FCE method depends solely on human assessment by specialists, which is excessively subjective. To address the issue of excessive human subjective variables in the assessment, an improved FCE model based on enhanced risk coefficient is provided, which includes four consideration indexes: failure probability, failure severity, failure detection difficulty, and failure repair difficulty. To reduce subjective human judgment errors entirely due to expert experience, the improved FCE takes into account the likelihood of failure using a statistical method, the severity of failure using a fault simulation analysis based on the LMS Imagine.Lab AMESim simulation platform, and the difficulty of fault detection and repair using the aircraft manufacturer’s professional maintenance information. As part of the evaluation model, the range of health assessment values and accompanying treatment methods are included, making it easier to implement on a daily basis in aircraft maintenance. As a final step, the simulation is evaluated, and the simulated faults are calculated.

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“…As demonstrated in [1][2][3][4][5], in modern civil aircraft, the landing gear system is the primary takeoff and landing device, and the landing gear's performance is critical for flight safety. Hydraulic retraction and extension of the landing gear is one of the most crucial subsystems on the landing gear, and if it fails during the landing phase, it is easy to cause a serious accident in which the landing gear cannot launch, posing a serious threat to takeoff and landing safety.…”

Section: Introductionmentioning

confidence: 99%

Health Assessment of Landing Gear Retraction and Extension Hydraulic System based on Improved Risk Coefficient and FCE Model

Duan¹,

Li²,

Cao³

et al. 2022

Preprint

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The health of the landing gear retraction and extension hydraulic system may be assessed using fuzzy comprehensive evaluation (FCE), however the traditional FCE method depends solely on human assessment by specialists, which is excessively subjective. To address the issue of excessive human subjective variables in the assessment, an improved FCE model based on enhanced risk coefficient is provided, which includes four consideration indexes: failure probability, failure severity, failure detection difficulty, and failure repair difficulty. To reduce subjective human judgment errors entirely due to expert experience, the improved FCE takes into account the likelihood of failure using a statistical method, the severity of failure using a fault simulation analysis based on the LMS Imagine.Lab AMESim simulation platform, and the difficulty of fault detection and repair using the aircraft manufacturer's professional maintenance information. As part of the evaluation model, the range of health assessment values and accompanying treatment methods are included, making it easier to implement on a daily basis in aircraft maintenance. As a final step, the simulation is evaluated and the simulated faults are calculated.

show abstract

Fault Analysis and Solution of an Airplane Nose Landing Gear’s Emergency Lowering

Cited by 5 publications

References 8 publications

Analysis of landing gear simplified modeling and simulation based on amesim

Analysis of landing gear simplified modeling and simulation based on amesim

Health Assessment of Landing Gear Retraction/Extension Hydraulic System Based on Improved Risk Coefficient and FCE Model

Health Assessment of Landing Gear Retraction and Extension Hydraulic System based on Improved Risk Coefficient and FCE Model

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