升降式起落架油气缓冲器性能仿真分析  

Performance Simulation Analysis of Oil-gas Buffer for Lifting Landing Gear

作　　者：张帅[1] 曹泽宇 邱华[1,2] 史国昭 俞滨 ZHANG Shuai;CAO Zeyu;QIU Hua;SHI Guozhao;YU Bin(School of Mechanical Engineering,Yanshan University,Qinhuangdao,Hebei 066004;Avic Xinxiang Aviation Industry(GROUP)Co.,Ltd.,Xinxiang,Henan 453000)

机构地区：[1]燕山大学机械工程学院,河北秦皇岛066004 [2]新乡航空工业(集团)有限公司,河南新乡453000

出　　处：《液压与气动》2025年第3期18-25,共8页Chinese Hydraulics & Pneumatics

基　　金：国家自然科学基金(52122503);河北省自然科学基金(E2023203258)。

摘　　要：提出了一种具备升降功能的新型油气缓冲器结构,既能满足缓冲功能,又能满足飞机装卸货物需求,通过虚拟仿真技术对该结构进行了性能参数分析。基于该新型升降式油气缓冲器的工作原理,搭建了其数学模型与仿真模型。结果表明:在一定范围内,该油气缓冲器的升降、缓冲性能与气腔初始压力呈正相关,与气腔初始容积呈负相关,但当气腔初始压力增至7.5 MPa或气腔初始容积减小至0.01 m3时,系统会出现抖动现象。研究结果为工程应用升降式起落架油气缓冲器的结构设计提供了参考,提高了设计效率和设计质量。This paper proposes a new type of lifting oil-gas buffer structure which meets both the buffering function and the demands of aircraft loading and unloading cargoes,and the performance parameters of this structure are analyzed through virtual simulation technology.Based on the working principle of this new type of lifting oil-gas buffer,its mathematical model and simulation model are constructed.The results show that,within a certain range,the lifting and buffering performance of this oil-gas buffer is positively correlated with the initial pressure of the air cavity and negatively correlated with the initial volume of the air cavity,however,when the initial pressure of the air cavity increases to 7.5 MPa or the initial volume of the air cavity decreases to 0.01 m^(3),the system will appear a jitter phenomenon.The results provide a reference for the structural design of oil-gas buffers for lifting landing gear in engineering applications,enhancing both design efficiency and quality.

关 键 词：飞机升降式起落架 油气缓冲器 性能分析 仿真分析 

分 类 号：TH137[机械工程—机械制造及自动化] TH138TH134