摘要
大型飞机多泵并联液压系统的壳体回流油液相互干扰问题直接影响飞机液压系统的性能和飞行安全。首先,基于对大型飞机液压系统和多泵并联能源系统的分析,建立考虑压力、流量和温度等因素的并联柱塞泵的壳体回油理论模型;然后,在理论研究的基础上建立柱塞泵和液压系统的仿真模型,并分析柱塞泵壳体回油压力—流量特性和多泵并联壳体回油干扰现象;最后,结合实例探究多泵并联系统壳体回油干扰对泵体温升的影响,并对壳体回油干扰提出相应的改善方案。结果表明:回油干扰的影响程度随着流量偏差的增加而增大,回油干扰与流量偏差和管路直径密切相关。
The mutual interference of drain oil of pump housing in the multi-pump parallel hydraulic system of large aircraft directly affects the performance of the aircraft hydraulic system and the flight safety.Firstly,based on the analysis of large aircraft hydraulic system and multi-pump parallel energy system,a theoretical model of drain oil of piston pump considering pressure,flow and temperature is established.Then,the simulation model of piston pump and hydraulic system is built.Based on the model,the drain oil pressure-flow characteristics of piston pump and the drain oil interference phenomenon of multi-pump parallel system are analyzed.Finally,the influence of the drain oil interference of the multi-pump parallel system on the temperature rise of the pump is explored with an example,and the corresponding improvement scheme is proposed for the drain oil interference.The results show that the degree of interference caused by oil return is increased with the increase of flow deviation,and the drain oil interference is closely related to the flow deviation and pipeline diameter.
作者
郭团辉
肖文键
刘继
付永领
GUO Tuanhui;XIAO Wenjian;LIU Ji;FU Yongling(School of Mechanical Engineering and Automation,Beihang University,Beijing 100191,China;Beijing Aeronautical Technology Research Center,Beijing 100076,China;Shanghai Aircraft Design and Research Institute,Commercial Aircraft Corporation of China,Ltd.,Shanghai 201210,China)
出处
《航空工程进展》
2025年第4期188-199,共12页
Advances in Aeronautical Science and Engineering
关键词
大型飞机
液压系统
柱塞泵
多泵并联系统
壳体回油干扰
large aircraft
hydraulic system
piston pump
multi-pump parallel system
drain oil interference
