Proceedings of the KSME Conference (대한기계학회:학술대회논문집)

The Korean Society of Mechanical Engineers (대한기계학회)
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Analysis of the Dynamic Characteristics of the In-Arm Type Hydropneumatic Suspension Unit

암 내장형 유기압 현수장치의 동특성 해석

  • 이홍우 (부산대학교 대학원 기계설계공학과) ;
  • 조진래 (부산대학교 기계공학부) ;
  • 이진규 (동명중공업(주) 기술연구소) ;
  • 장문석 (동명중공업(주) 기술연구소) ;
  • 안동수 (동명중공업(주) 기술연구소)
  • Published : 2003.04.23
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Abstract

In this paper we discuss the dynamic characteristics of the in-arm 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.

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