What is PD CEN/TR 17792 – Wheel-rail contact geometry parameters about?
PD CEN/TR 17792 is a standard that covers technical report and information about wheel-rail contact geometry parameters, ensuring stability, performance and efficiency in railway applications.
PD CEN/TR 17792 provides background information regarding the changes from EN 15302:2008+A1:2010 to the revised version dated 2021, including the reasons for decisions and additional explanation and guidance that is not appropriate in PD CEN/TR 17792.
The range of equivalent conicity results obtained with different software tools is described in PD CEN/TR 17792.
In PD CEN/TR 17792, guidance is given on fields of application of the wheel-rail contact parameters, on the selection of appropriate reference profiles (choice of reference rail profile and rail inclination for assessing wheel profiles and vice versa) and on handling special cases.
As some references in EN 14363 to wheel-rail contact test conditions have caused difficulties in understanding, clarifications issued by ERA are mentioned.
In PD CEN/TR 17792, the interpretation of equivalent conicity results, using tools such as conicity maps, is discussed and various approximations such as ‘quick conicity’ assessments are also described.
In PD CEN/TR 17792, information is included on possible additional wheel-rail contact parameters, not yet ready for standardization, but where further experience is needed.
Note: In PD CEN/TR 17792, the commonly used term “wheel-rail contact geometry” is used as a synonym for the more precise term “wheelset-track contact geometry”.
Who is PD CEN/TR 17792 – Wheel-rail contact geometry parameters for?
PD CEN/TR 17792 on the technical report about wheel-rail contact geometry parameters is useful for:
- Mechanical engineers and surveyors
- Research organization
- Railway authorities and organizations
- National and local authorities
- Quality control and testing agencies
- Transportation Industry
- Regulatory bodies
Why should you use PD CEN/TR 17792 – Wheel-rail contact geometry parameters?
The wheel-rail contact governs the dynamic performance of rail vehicles through the loads it transmits and as it is a high stress concentration zone, it is subjected to damage phenomena.
PD CEN/TR 17792 serves as a guide on railway wheel profile development on the base of the intended shape of the wheelset or track geometric characteristics.
PD CEN/TR 17792 provides you guidance on the importance of considering the complete measurement and calculation process, methods for plausibility checks, eliminating outliers and assessing the uncertainty and repeatability of measurements.
By adopting the guidance in PD CEN/TR 17792, you can promote better vehicle-track interaction, enabling safety, fuel efficiency and performance in railway applications.