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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 Xiaohui1,2, LIU Chenglong2, NIE Hong1,2, ZHANG Ming2, YIN Qiaozhi2   

  1. 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:

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: