Wheel/rail contact geometry assessment to limit rolling contact fatigue initiation at high axle loads

Fröhling, Robert; Spangenberg, Ulrich; Hettasch, Georg

doi:10.1080/00423114.2012.665163

Cited by 15 publications

(18 citation statements)

References 3 publications

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“…The features used to describe the worn wheel and rail profile shape included hollow wear, gauge side false flange height, gauge side false flange gradient, hollow wear position relative to the taping line and the rail gauge corner deviation at -15° ( Figure 8). These features are consistent with those defined by Fröhling et al [5], except for the maximum hollow wear position. When a bogie is well aligned and runs true, with only small differences in wheel diameters, it will result in a maximum hollow wear position close to the taping line.…”

Section: Wheel and Rail Profile Shape Featuressupporting

confidence: 92%

“…It is known from [3][4][5] that hollow wear is an effective feature to monitor and limit the initiation and growth of RCF cracks. The hollow wear is compared to the DI and FI Surf values in Figure 10.…”

Section: Wheel Featuresmentioning

confidence: 99%

“…Fröhling et al [4] suggested that the impact of false flange contact could be restricted by means of limiting the wheels' hollow wear. The effect of the hollow worn wheel profile shape on the initiation of RCF was further investigated by Fröhling et al [5] and Karttunen et al [6]. Wu et al [7] noted that high energy in the wheel-rail contact patch leading to RCF initiation or wear is generally caused by poor vehicle curving performance and poor wheel-rail contact conditions.…”

Section: Introductionmentioning

confidence: 99%

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Influence of wheel and rail profile shape on the initiation of rolling contact fatigue cracks at high axle loads

Spangenberg

Fröhling

Schalk

2016

Vehicle System Dynamics

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The influence of wheel and rail profile shape features on the initiation of rolling contact fatigue (RCF) cracks is evaluated based on the results of multi-body vehicle dynamics simulations. The damage index and surface fatigue index are used as two damage parameters to assess the influence of the different features. The damage parameters showed good agreement to one another and to in-field observations. The wheel and rail profile shape features showed a correlation to the predicted RCF damage. The RCF damage proved to be most sensitive to the position of hollow wear and thus bogie tracking. RCF initiation and crack growth can be reduced by eliminating unwanted shape features through maintenance and design and by improving bogie tracking.

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Section: Wheel and Rail Profile Shape Featuressupporting

confidence: 92%

Section: Wheel Featuresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Influence of wheel and rail profile shape on the initiation of rolling contact fatigue cracks at high axle loads

Spangenberg

Fröhling

Schalk

2016

Vehicle System Dynamics

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show abstract

“…These features are consistent with those defined by Fröhling et al [5], except for the maximum hollow wear position. When a bogie is well aligned and runs true, with only small differences in wheel diameters, it will result in a maximum hollow wear position close to the taping line.…”

Section: Wheel and Rail Profile Shape Featuressupporting

confidence: 81%

“…Although Fröhling et al [5] were unable to prove any relationship between the gauge corner deviation and the amount of RCF damage, the gauge corner deviation at -15° was once again studied to determine its potential contribution to RCF initiation and crack growth.…”

Section: Rail Featuresmentioning

confidence: 99%