Variable Time Step Simulation and Analysis of Hydraulic Control Systems using Transmission Line Modeling

전달관로 모델링을 이용한 유압제어 시스템의 가변 시간스텝 시뮬레이션 및 해석

  • Hwang, Un-Gyu (Dept. of Mechanical Engineering, Graduate school of Hongik University) ;
  • Jo, Seung-Ho (Department of Mechanical and System Design Engineering, Hongik University)
  • 황운규 (홍익대학교 대학원 기게공학과) ;
  • 조승호 (홍익대학교 기계시스템디자인공학과)
  • Published : 2002.05.01


This paper presents a simulation method using the transmission line modeling to reduce simulation runtime of hydraulic control systems. This method is based on separating the system components each other using the transmission line elements prior to simulation, which leads to divide the simulated system into several subsystems suitable for an even more efficient integration. It can also handle nonlinearities and discontinuities without flag signal when restarting integration. By applying variable integration timestep to parallel hydraulic circuits via parallel processing, it is shown that simulation run-time can be reduced significantly compared with that of Runge Kutta method.


Transmission Line Modeling;Characteristic Impedance;Characteristic Pressure;Parallel Processing;Variable Time step Size


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