CAJ | 학술논문

为研究在周期性脉动流体作用下飞机液压管道的振动特性，分析周期性脉动流体引起管路系统振动机制，建立流体脉动压力影响液压管路振动特性的数学模型，利用有限元软件ANSYS建立某型飞机液压管路的三维模型。考虑不同管道材料和流体脉动因素对管路系统振动特性的影响。结果表明：周期性脉动流体容易引起液压管路剧烈的振动响应，管路材料刚度和管路长度直接影响液压管路振幅；液压管路在不同方向上的振动幅值存在差异，容易引起管路振动的不均匀性。
위연구재주기성맥동류체작용하비궤액압관도적진동특성，분석주기성맥동류체인기관로계통진동궤제，건립류체맥동압력영향액압관로진동특성적수학모형，이용유한원연건ANSYS건립모형비궤액압관로적삼유모형。고필불동관도재료화류체맥동인소대관로계통진동특성적영향。결과표명：주기성맥동류체용역인기액압관로극렬적진동향응，관로재료강도화관로장도직접영향액압관로진폭；액압관로재불동방향상적진동폭치존재차이，용역인기관로진동적불균균성。
In order to figure out the vibration characteristic of the airplane hydraulic pipe under the periodic pulse fluid effect, the vibration mechanism was analyzed,the mathematical model of the vibration characteristic of the airplane hydraulic pipe was estab-lished,and ANSYS was used to establish the 3D model of the hydraulic pipe of a certain type of airplane.Different pipe materials and fluid pulsation influences on pipeline system were considered.The results show that periodic pulse fluid can cause the hydraulic pipe’s severe vibration,piping material stiffness and the pipeline length directly affect the amplitude of the hydraulic pipe.The vibration am-plitudes of the hydraulic pipe are different in different directions,which can cause inhomogeneity of the pipe’s vibration.