Dynamic response analysis of nose landing gear in aircraft new towing and taxiing mode

LI Yueming; LI Xiaoyun; CHAI Yijun; YANG Xiongwei

doi:10.7527/S1000-6893.2022.26915

ACTA AERONAUTICAET ASTRONAUTICA SINICA >

2022 , Vol. 43 >Issue 6: 526915 - 526915

DOI: https://doi.org/10.7527/S1000-6893.2022.26915

Articles

Dynamic response analysis of nose landing gear in aircraft new towing and taxiing mode

LI Yueming ,
LI Xiaoyun ,
CHAI Yijun ,
YANG Xiongwei

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State Key Laboratory for Strength and Vibration of Mechanical Structures, Shaanxi Key Laboratory of Environment and Control for Flight Vehicle, School of Aerospace Engineering, Xi'an Jiaotong University, Xi'an 710049, China

Received date: 2022-01-07

Revised date: 2022-04-01

Online published: 2022-03-30

Supported by

Key Projects of the Civil Aviation Joint Fund of the National Natural Science Foundation of China (U2033208)

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Abstract

Nowadays, a civil aviation aircraft needs to be pushed out of the berth by a tractor before leaving the port, and then rely on its own engine power to enter the runway. In order to make the airport operate more safely and efficiently, a new aircraft taxiing mode-towing and taxiing is explored, which does not require engine power. This mode relies on external power for the aircraft to move from launching the berth to the runway waiting for take-off while pilot controls the movement of the tractor, which ultimately, helps the airport to achieve efficient, green and economic operation goals. The nose landing gear is a key component in carrying the weight of the aircraft and realizing ground towing and taxiing, and its dynamic characteristics directly determine the high-speed towing and taxiing safety of the aircraft, which affects the subsequent flight safety and full life cycle of the structure. Therefore, it is necessary to study the mechanical behavior of the nose landing gear under the new generation of towing and taxiing methods. Taking the nose landing gear of a certain type of civil aviation aircraft as the research object, the dynamic characteristics and dynamic response behavior of the nose landing gear under heavy load and high-speed traction are studied. Likewise, the cushioning performance of the shock absorber struts and tractor tires is considered. The influence of the random road irregularity excitation on the response of nose landing gear is studied, and the dynamic response characteristics under different loads and towing speeds are obtained. The results show that the traction load plays a leading role in the vibration of the resistance arm during high-speed taxiing with full load. An important reference for the design of the nose landing gear under the new towing mode and the safe operation guarantee of the current aircraft can be provided.

Key words： nose landing gear; full-loaded high-speed; towing and taxiing; random response; dynamic characteristics

Cite this article

LI Yueming , LI Xiaoyun , CHAI Yijun , YANG Xiongwei . Dynamic response analysis of nose landing gear in aircraft new towing and taxiing mode[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022 , 43(6) : 526915 -526915 . DOI: 10.7527/S1000-6893.2022.26915

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