The design of suspension systems for high speed railway vehicles involves the simultaneous consideration of those requirements as suspension packaging, ride quality, stability, and cost. A design strategy is presented in this paper that enables an optimal design with respect to these competing requirements. The design strategy consists of four steps including the development of a lumped parameter vehicle model, the determination of vehicle parameters, the formulation of a design objective, and the minimization of the objective to optimize key suspension parameters. The design objective captures vehicle requirements including ride quality, suspension packaging, and wheel/rail holding. Power spectral densities (PSDs) are computed for the vertical vehicle body acceleration, suspension travel and dynamic wheel/rail interaction. The design objective function is calculated based on these PSDs and minimized to yield an optimum. An example suspension design is proposed that improves vehicle ride quality and wheel/rail holding without sacrificing other requirements.
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ASME/IEEE 2004 Joint Rail Conference
April 6–8, 2004
Baltimore, Maryland, USA
Conference Sponsors:
- Rail Transportation Division
ISBN:
0-7918-4163-4
PROCEEDINGS PAPER
Suspension Dynamics and Design Optimization of a High Speed Railway Vehicle
Kazuhiko Nishimura,
Kazuhiko Nishimura
University of Michigan, Ann Arbor, MI
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N. C. Perkins,
N. C. Perkins
University of Michigan, Ann Arbor, MI
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Weiming Zhang
Weiming Zhang
Osaka Institute of Technology, Osaka, Japan
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Kazuhiko Nishimura
University of Michigan, Ann Arbor, MI
N. C. Perkins
University of Michigan, Ann Arbor, MI
Weiming Zhang
Osaka Institute of Technology, Osaka, Japan
Paper No:
RTD2004-66029, pp. 129-139; 11 pages
Published Online:
November 17, 2008
Citation
Nishimura, K, Perkins, NC, & Zhang, W. "Suspension Dynamics and Design Optimization of a High Speed Railway Vehicle." Proceedings of the ASME/IEEE 2004 Joint Rail Conference. Joint Rail. Baltimore, Maryland, USA. April 6–8, 2004. pp. 129-139. ASME. https://doi.org/10.1115/RTD2004-66029
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