| This paper mainly researches the dynamic and static analysis of the aircraft landing gear gas-hydraulic buffer. By studying the structure and principle of aircraft landing gear, the mathematical model describing the landing gear landing impact is established, with the application of AMESIM and LMS Virtual.Lab Motion, the mechanical models of landing gear and hydraulic models of buffer are constructed. The above models are used to co-simulate the dropping test of the landing gear, the dynamic and static curves of buffer are gained, the main structre size of buffer is determined. On this basis, the correction results of friction is gained by using the ABAQUS to simulate, that is used to co-simulate again, through dynamic curve obtained and the actual drop results are compared, indicating that this method is more accurated. |
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