CAJ | 학술논문

研究制退机唇形橡胶圈在火炮高速发射时的动密封性能。分析唇形密封圈的工作原理，利用微观组织分析方法研究密封圈失效机制；通过橡胶力学性能试验和拟合寻优，确定橡胶超弹性本构模型，利用ABAQUS建立密封圈轴对称有限元模型；通过ADAMS仿真求解得到不同装药条件下制退机后坐速度、变化油压等参数，并综合考虑初始过盈量、摩擦因数、动密封速度等因素，分别对密封圈的安装、静密封和动密封等工况进行模拟；根据密封圈失效准则，研究变化油压冲击作用下的唇形橡胶圈动密封性能，对研究和掌握火炮发射状态下唇形密封圈的寿命规律具有一定参考价值。
연구제퇴궤진형상효권재화포고속발사시적동밀봉성능。분석진형밀봉권적공작원리，이용미관조직분석방법연구밀봉권실효궤제；통과상효역학성능시험화의합심우，학정상효초탄성본구모형，이용ABAQUS건립밀봉권축대칭유한원모형；통과ADAMS방진구해득도불동장약조건하제퇴궤후좌속도、변화유압등삼수，병종합고필초시과영량、마찰인수、동밀봉속도등인소，분별대밀봉권적안장、정밀봉화동밀봉등공황진행모의；근거밀봉권실효준칙，연구변화유압충격작용하적진형상효권동밀봉성능，대연구화장악화포발사상태하진형밀봉권적수명규률구유일정삼고개치。
The dynamic seal performance of lip seal of artillery recoil brake when artillery firing at high speed was studied. The work-ing principle of lip seal was analyzed,and the seal failure mechanism was studied by using the microstructure analysis method. Through the rubber mechanical properties testing and fitting optimization,the hyperelastic constitutive model of rubber was identified,and the sealing ring axisymmetric finite element model was established based on ABAQUS. The recoil brake parameters such as recoil displacement,recoil velocity and hydraulic pressure under the condition of different charge were solved by using the simulation software of ADAMS. The seal ring installation,static seal and dynamic seal condition were simulated by considering the effect of the initial amount of interference,the friction coefficient,the changing oil pressure and the relative velocity of dynamic seal. According to the seal failure criterion,the lip seal dynamic sealing performance was researched under two typical changeable hydraulic shock. This study result has certain reference value for mastering the law of sealing ring life under artillery firing condition.