Abstract
Railway wheels are safety-critical components with complex stress states that make parametric design difficult. Accordingly, this study evaluated a non-parametric shape optimization technique using the traction method for the fatigue design of railway wheel webs, considering design specifications or factors such as the position and size of the rim or hub as constraints. Reduced models were then employed to consider the influence of wheel wear on the stress state of the web to further inform design. The findings of this study indicate that the traction method can be successfully used to optimize the geometry of railway wheel webs according to stress, geometric, or mass constraints.
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