암 내장형 유기압 현수장치의 동특성 해석

In this paper we discuss the dynamic characteristics of the in-am1 type hydropneumatic suspension unit(ISU). For this, two accurate models are introduced. The first one is the Benedict-Webb-Rubin equation which is adopted for the spring behavior of a real gas. This equation is applicable for the high pressure of the nitrogen gas which acts as a spring in ISU system. The second one describes the behavior of a damper. which is divided into four parts - jounce-loading. jounce-unloading. rebound-loading and rebound-unloading. This approach gives a good approximation of the real damper system. For the comparison purpose. the numerical results of the dynamic behavior of ISU system using a real gas and an ideal gas are given in the paper.