基于SimHydraulics的某飞机起落架液压系统建模与故障仿真  

Modeling and Fault Simulation of Landing Gear Hydraulics System for Certain Aircraft Based on SimHydraulics

作　　者：王强 刘玉科 WANG Qiang;LIU Yu-ke(Key Laboratory of Helicopter Flight Technology and Safety Operation,Civil Aviation Flight University of China of Xinjin Branch,Xinjin,Sichuan 611431)

机构地区：[1]中国民用航空飞行学院新津分院直升机飞行技术与安全运行重点实验室,四川新津611431

出　　处：《液压与气动》2020年第4期123-129,共7页Chinese Hydraulics & Pneumatics

基　　金：中国民用航空飞行学院基金(CJ2019-06)。

摘　　要：采用SimHydraulics软件构建某飞机起落架液压系统工作仿真模型。通过设置模型中液压部件的参数,分析不同参数的变化对作动筒活塞杆位移动态特性的影响。仿真结果表明:构建的模型能够较好的反映某飞机起落架液压系统的工作状况,通过故障仿真,飞行员可直观认识到不同的液压系统故障对起落架收放运动的影响程度,提高了飞行员对起落架液压系统故障的应急处理能力。机务人员也可通过故障仿真清楚地了解液压系统故障发生的机理,为故障的诊断和预防提供参考依据。The simulation model of a certain aircraft landing gear hydraulic system is built using the software of SimHydraulics.The influence of parameters on the dynamic displacement characteristics of the piston rod of the actuating cylinder is analyzed by tuning the parameters of the hydraulic components in the model.The simulation results show that the model are in agreement with true working status of the landing gear hydraulic system of an aircraft.Through the simulation of the fault,the pilots can intuitively understand the impact of different hydraulic system faults on landing gear retractable motion,and get the ability handling the hydraulic system faults improved.The maintenance personnel could clearly understand the mechanism of hydraulic system fault by fault simulation,and the reference for fault diagnosis and prevention are provided.

关 键 词：起落架 液压系统 仿真 作动筒 故障 

分 类 号：TH137[机械工程—机械制造及自动化] V277[航空宇航科学与技术—飞行器设计]