Journal article
Air Suspension System Model Coupled With Leveling and Differential Pressure Valves for Railroad Vehicle Dynamics Simulation
Journal of computational and nonlinear dynamics, Vol.9(3), pp.np-np
07/01/2014
DOI: 10.1115/1.4026275
Abstract
In this investigation, a nonlinear air suspension system model that accounts for the coupling between air springs, leveling valves, and differential pressure valves is developed and integrated into general-purpose multibody dynamics computer algorithms. It is demonstrated that the proposed model can capture highly nonlinear air suspension characteristics resulting from the coupling with leveling and differential pressure valves, and good agreements are obtained between the numerical and on-track test results. Furthermore, the effect of flow characteristics of leveling valves on the wheel load unbalance on spiral curve sections is discussed. The numerical results obtained by the proposed model clearly indicate the importance of modeling the nonlinear flow characteristics of the leveling and differential pressure valves for assessing the vehicle safety in low speed operations on a small radius curved track.
Details
- Title: Subtitle
- Air Suspension System Model Coupled With Leveling and Differential Pressure Valves for Railroad Vehicle Dynamics Simulation
- Creators
- Toshihisa Nakajima - Tokyo University of ScienceYoshiyuki Shimokawa - Nippon SteelMasaaki Mizuno - Nippon SteelHiroyuki Sugiyama - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Journal of computational and nonlinear dynamics, Vol.9(3), pp.np-np
- DOI
- 10.1115/1.4026275
- ISSN
- 1555-1415
- eISSN
- 1555-1423
- Language
- English
- Date published
- 07/01/2014
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984196500402771
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