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.
Suspension dynamics and design optimization of a high speed railway vehicle
2004-01-01
727768 byte
Conference paper
Electronic Resource
English
RTD2004-66029 Suspension Dynamics and Design Optimization of a High Speed Railway Vehicle
British Library Conference Proceedings | 2004
|POWER CONVERTER FOR HIGH SPEED RAILWAY VEHICLE AND HIGH SPEED RAILWAY VEHICLE
European Patent Office | 2019
|