综合考虑某型飞机前起落架收起过程的影响因素,通过多体动力学分析软件ADAMS、液压控制仿真软件AMESim和Matlab/Simulink软件等建立了机电液一体化系统模型,通过运动学和动力学的联合仿真分析,验证了模型的可靠性.基于该模型,对前起落架系统收起功能运动精度的可靠性进行了分析,获得了系统运动精度可靠度.通过可靠性灵敏度分析,得到了各主要设计参数(包括液压油黏度,液压油压、收放作动筒内径等)对运动精度可靠性的影响程度.基于机电液联合仿真模型的可靠性分析方法可为复杂机电液系统的可靠性分析提供参考,得到的分析结果可为飞机起落架可靠性评估和维护保养提供依据.%Considering the factors which influence the front landing gear of a certain training plane during the retraction process,this paper aims to build an analysis model of mechanical-electrical-hydraulic integrated system on Simulink with multibody dynamics analysis software ADAMS,hydraulic system software AMESim and Matlab,and to valid.ate the reliability of this model through co-simulation analysis on kinematics and dynamics.Based on this model,the performance reliability of motion accuracy can be obtained by analyzing the retraction process of the front landing gear system.Then the analysis of the sensitivity can obtain the influence degree of the major design parameters (including the hydraulic oil viscosity,the hydraulic oil pressure,and the diameter of actuating cylinder,etc.) to the performance reliability of motion accuracy.The method of reliability analysis based on the co-simulation model of mechanical-electrical-hydraulic integrated system in this paper provide reference to reliability analysis of the complex mechanical-electrical-hydraulic integrated system and the conclusion can provide evidence of the reliability evaluation and the repair for the aircraft landing gear.
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