CAJ | 학술논문

针对某轮式车辆车姿调节系统油气弹簧充放油口处的截止阀是否有必要的问题，建立了油气弹簧－截止阀－液压管路－液压锁局部系统的数学模型，并借助Simulink建立了仿真模型，重点就活塞杆不同运动速度下、液压管路内压力脉动情况进行仿真分析。仿真结果表明：活塞杆瞬间运动速度提高将会产生瞬间液压冲击，导致液压管路内有剧烈的压力脉动且脉动峰值较大，该压力脉动峰值会影响油气弹簧的性能及造成软管的爆裂损坏。因此车姿调节系统有必要保留此截止阀。
침대모륜식차량차자조절계통유기탄황충방유구처적절지벌시부유필요적문제，건립료유기탄황－절지벌－액압관로－액압쇄국부계통적수학모형，병차조Simulink건립료방진모형，중점취활새간불동운동속도하、액압관로내압력맥동정황진행방진분석。방진결과표명：활새간순간운동속도제고장회산생순간액압충격，도치액압관로내유극렬적압력맥동차맥동봉치교대，해압력맥동봉치회영향유기탄황적성능급조성연관적폭렬손배。인차차자조절계통유필요보류차절지벌。
Aiming at the necessity of cut?off valve in vehicle altitude adjusting system of a wheel vehicle, the mathematical model of oil and gas spring?cutoff valve?hydraulic line?hydraulic lock and the simulation model were established, mainly analyzing the pressure pulsation in the pipeline under different velocity of the piston rod. The simulation results show that the instantaneous velocity of the pis?ton rod will produce instantaneous hydraulic impact and cause severe pressure pulsation in the hydraulic pipeline, the pressure fluctua?tion peak will affect the performance of the oil?gas spring and cause hose bursting damage. So it is necessary to keep the cut?off valve.