Hydropneumatic Modeling and Dynamic Characteristic Analysis of a Heavy Truck Semi-active Cabin Air Suspension System

대형 트럭 반능동형 캐빈 공기 현가시스템의 유공압 모델링 및 동특성 해석

  • Lee, Kwang-Heon (School of Mechanical Engineering, Kunsan National University) ;
  • Jeong, Heon-Sul (School of Mechanical Engineering, Kunsan National University)
  • Received : 2010.03.17
  • Accepted : 2010.08.16
  • Published : 2011.03.01

Abstract

In this paper, a hydropneumatic modeling and dynamic analysis of a heavy truck semi-active cabin air suspension system is presented. Semi-active cabin air suspension system improves driver's ride comfort by controlling the damping characteristics in accordance with driving situation. So it can reduce vibration between truck frame and cabin. Semi-active cabin air suspension system is consist of air spring, leveling valve and CDC shock absorber, and full cabin system are mathematically modelled using AMESim software. Simulation results of components and full cabin system are compared with experimental data of components and test results of a cabin using 6 axis simulation table. It is found that the simulation results are in good agreements with test results, and the hydropneumatic model can be used well to predict dynamic characterics of heavy truck semi-active cabin air suspension system.

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