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Aircraft Landing Gear Parameter Estimation and Simulation using Elimination Method

机译：消除方法的飞机起落架参数估算与仿真

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In this paper, an elimination method has been developed and applied for identification of an aircraft’s landing gear properties. A nonlinear simulation model of the Grumman A-6 Intruder main landing gear has been developed, simulated and validated against static and dynamic test data, obtained by the engineers at the Aircraft Landing Dynamics facilities at NASA Langley Research Centre. This mathematical model has been proven to generate realistic responses of the landing gear during taxiing along an undulating surface under various configurations. By using the simulated data, an elimination method has been applied to deduce the nonlinear variables of the landing gear model via a developed searching algorithm. It is capable of identifying the aircraft landing gear properties, such as spring stiffness, damping coefficients, frictional constants and tyre deflection force, for the parameter estimation process in Matlab/Simulink.
机译：本文研究了一种消除方法，并将其应用于飞机起落架特性的识别。已经开发了Grumman A-6入侵者主起落架的非线性仿真模型，并针对静态和动态测试数据进行了仿真和验证，这些数据是由NASA兰利研究中心飞机着陆动力学设施的工程师获得的。实践证明，该数学模型可以在各种配置下沿起伏表面滑行时产生起落架的实际响应。通过使用模拟数据，已采用一种消除方法，通过一种改进的搜索算法来推断起落架模型的非线性变量。它能够识别飞机起落架的特性，例如弹簧刚度，阻尼系数，摩擦常数和轮胎挠曲力，以便在Matlab / Simulink中进行参数估计过程。

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