舰载机前起落架突伸动力学分析及试验方法

doi:10.7527/S1000-6893.2013.0120

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2013, Vol. 34 ›› Issue (6): 1363-1369.doi: 10.7527/S1000-6893.2013.0120

• Solid Mechanics and Vehicle Conceptual Design • Previous Articles Next Articles

Dynamics and Test Method of Carrier-based Aircraft Nose Landing Gear Sudden Extension

WEI Xiaohui^1,2, LIU Chenglong², NIE Hong^1,2, ZHANG Ming², YIN Qiaozhi²

1. State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
2. Key Laboratory of Fundamental Science for National Defense-Advanced Design Technology of Flight Vehicles, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Received:2012-06-01 Revised:2013-01-28 Online:2013-06-25 Published:2013-02-18
Contact: 10.7527/S1000-6893.2013.0120 E-mail:wei_xiaohui@nuaa.edu.cn
Supported by:
National Natural Science Foundation of China (51105197, 51075203);Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions

Abstract

Abstract:

In order to understand the equivalent relationship of a landing gear's sudden-extension test and the real sudden-extension process of a carrier-based aircraft, a dynamics model of a certain carrier-based aircraft catapult-assisted takeoff process is established. The catapult-assisted takeoff dynamics is simulated and the nose landing gears dynamic response to the sudden-extension process is obtained. A test method is introduced to study the nose landing gear's sudden extension based on equivalent mass. Accordingly, a test program is presented for independent nose landing gear sudden-extension analysis. With simulated results of the models introduced above, the value range of relevant test parameters is studied. It is shown that the independent nose landing gear sudden-extension dynamic response is relatively consistent with the full-aircraft catapult-assisted takeoff dynamics when the equivalent mass coefficient is equal to 0.8.

Key words: carrier-based aircraft, catapult-assisted takeoff, nose landing gear, equivalent mass, sudden-extension test

CLC Number:

V226

WEI Xiaohui, LIU Chenglong, NIE Hong, ZHANG Ming, YIN Qiaozhi. Dynamics and Test Method of Carrier-based Aircraft Nose Landing Gear Sudden Extension[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2013, 34(6): 1363-1369.

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Dynamics and Test Method of Carrier-based Aircraft Nose Landing Gear Sudden Extension

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