基于键合图的民机前轮转弯液压回路的研究  

Research on Nose Wheel Turning Hydraulic Circuit of Civil Aircraft Based on Bond Graph

作　　者：张鑫葵 李艳军[1] 曹愈远[1] 胡学文 ZHANG Xin-kui;LI Yan-jun;CAO Yu-yuan;HU Xue-wen(Nanjing University of Aeronautics and Astronautics,Nanjing 211000,China)

机构地区：[1]南京航空航天大学,江苏南京211000

出　　处：《航空计算技术》2021年第4期118-122,共5页Aeronautical Computing Technique

基　　金：国家自然科学基金项目资助(50705097);中国民航总局科技基金项目资助(MHRD07z38);国家航空产业基金(CAIF)计划项目资助(2020-YZ-011)。

摘　　要：民用飞机的前轮转弯系统是满足大型飞机在机场停机坪、跑道等地低速大转角以及大转弯力矩所必须的系统;而大型飞机的前轮转弯系统的动作一般是通过液压系统进行控制。以波音737-NG飞机为例,对其液压系统中双作动筒式前轮转弯系统的回路进行研究并分析其原理,并基于功率键合图建立其对应的模型,再依据其功率键合图模型以及对应的数学模型,通过AMESim软件进行仿真分析,从而验证模型的准确性,并得出结论模型与真实系统基本匹配。以此加强对液压系统前轮转弯回路内各个子系统、元件之间的能量功率的动态特性的理解,同时为将来液压系统的故障注入及诊断奠定基础。The nose wheel steering system of civil aircraft is a necessary system to meet the needs of large aircraft at airport aprons,runways and other places at low speeds,large turning angles and large turning moments,while the actions of the nose wheel steering system of large aircraft are generally controlled by hydraulic systems.Taking the Boeing 737-NG aircraft as an example,the circuit of the double-actuator nose wheel turning system in its hydraulic system is studied and its principle is analyzed,and establishes its corresponding model based on the power bond diagram,and then based on its power button,the combined drawing model and the corresponding mathematical model are simulated and analyzed by AMESim software to verify the accuracy of the model,and it is concluded that the model basically matches the real system.In this way,the understanding of the dynamic characteristics of the energy and power between the various subsystems and components in the nose wheel steering circuit of the hydraulic system is strengthened,and at the same time,it lays the foundation for the fault injection and diagnosis of the hydraulic system in the future.

关 键 词：前轮转弯 液压系统 功率键合图 建模与仿真 

分 类 号：V226[航空宇航科学与技术—飞行器设计]