NDLI: Suspension dynamics and design optimization of a high speed railway vehicle

Content Provider	IEEE Xplore Digital Library
Author	Nishimura, K. Perkins, N.C. Weiming Zhang
Copyright Year	2004
Description	Author affiliation: Dept. of Mechanical Eng., Michigan Univ., Ann Arbor, MI, USA (Nishimura, K.; Perkins, N.C.)
Abstract	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.
Sponsorship	Rail Transportation Div., ASME Land Transportation Div., IEEE Vehicular Technol. Soc
Starting Page	129
Ending Page	139
File Size	727768
Page Count	11
File Format	PDF
ISBN	0791841634
DOI	10.1115/RTD2004-66029
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-04-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	ASME
Subject Keyword	Vehicle dynamics Design optimization Rail transportation Vehicles Cost function Acceleration Frequency Transfer functions Mechanical engineering Wheels
Content Type	Text
Resource Type	Article

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