CAJ | 학술논문

探究了非线性液压弹簧力对电液伺服系统动态特征的影响。根据非线性动力学原理，建立了系统的动力学模型。通过理论研究指出，非线性液压弹簧力作用可以用 Duffing 方程描述。通过数值分析揭示了系统内在的分岔现象及典型非线性动力学行为。通过对实测数据进行深入的分析，揭示了液压弹簧的软硬弹簧特性引起的“跳跃现象”。发现液压弹簧力的非线性作用会引发非线性振动，在系统建模与动态特性研究时应该将其非线性作用考虑在内。
탐구료비선성액압탄황력대전액사복계통동태특정적영향。근거비선성동역학원리，건립료계통적동역학모형。통과이론연구지출，비선성액압탄황력작용가이용 Duffing 방정묘술。통과수치분석게시료계통내재적분차현상급전형비선성동역학행위。통과대실측수거진행심입적분석，게시료액압탄황적연경탄황특성인기적“도약현상”。발현액압탄황력적비선성작용회인발비선성진동，재계통건모여동태특성연구시응해장기비선성작용고필재내。
With electro-hydraulic servo system as the research object,the influences of nonlinear HSF on system dynamic characteristics were explored.Based on the principles of the nonlinear dynam-ics,a dynamical model of the system was established.Then,a conclusion is indicated:the effects of nonlinear HSF can be described by Duffing equation.The bifurcation phenomenon and typical nonlin-ear dynamical behaviors which implied within system were revealed through numerical analyses.The measured dynamic data were thoroughly analyzed.The “jump phenomenon”caused by soft or hard spring property was revealed.The results indicate that the nonlinear effects of HSF can cause nonlin-ear vibration,and it should be taken into account in system modeling and dynamic characteristics re-search.