PD CEN/TR 17792:2022 Railway Applications. Wheel-rail contact geometry parameters. Technical report and background information about EN 15302

Standard number: PD CEN/TR 17792:2022

Pages: 90

Released: 2022-03-08

ISBN: 978 0 539 15052 0

Name: Railway Applications. Wheel-rail contact geometry parameters. Technical report and background information about EN 15302

Status: Standard

Overview

The PD CEN/TR 17792:2022 is an essential technical report that delves into the intricate details of wheel-rail contact geometry parameters. This comprehensive document provides critical background information about the EN 15302 standard, making it an indispensable resource for professionals in the railway industry.

Key Features

• Comprehensive Coverage: Spanning 90 pages, this report offers an in-depth analysis of wheel-rail contact geometry parameters, ensuring that you have all the information you need at your fingertips.
• Up-to-Date Information: Released on March 8, 2022, this report contains the latest data and insights, reflecting the most current standards and practices in the railway industry.
• Technical Expertise: Authored by experts in the field, this report provides authoritative guidance and detailed explanations, making it a reliable reference for engineers, designers, and other professionals.
• ISBN: 978 0 539 15052 0 - Easily identifiable and accessible through its unique ISBN number.

Why This Report is Essential

Understanding the wheel-rail contact geometry is crucial for the safe and efficient operation of railway systems. This report provides a thorough examination of the parameters that influence this contact, offering valuable insights that can help improve the design, maintenance, and performance of railway vehicles and tracks.

By adhering to the guidelines and recommendations outlined in this report, railway professionals can ensure that their systems meet the highest standards of safety and reliability. The detailed background information about EN 15302 further enhances the report's value, providing a solid foundation for understanding and implementing this important standard.

Who Should Read This Report?

This report is a must-read for a wide range of professionals in the railway industry, including:

• Engineers: Gain a deeper understanding of the technical aspects of wheel-rail contact geometry and how to apply this knowledge in your work.
• Designers: Use the insights provided in this report to create more efficient and reliable railway vehicles and tracks.
• Maintenance Personnel: Learn about the key parameters that affect wheel-rail contact and how to monitor and maintain them effectively.
• Regulatory Authorities: Ensure that your standards and regulations are based on the most current and comprehensive information available.

Detailed Content

The PD CEN/TR 17792:2022 report is meticulously structured to provide a logical and coherent flow of information. Each section is designed to build on the previous one, ensuring that readers can easily follow the progression of ideas and concepts. The report includes:

• Introduction: An overview of the importance of wheel-rail contact geometry and the objectives of the report.
• Technical Background: Detailed explanations of the key parameters and their significance in the context of railway applications.
• Analysis and Discussion: In-depth analysis of the data and findings, with a focus on practical applications and implications.
• Conclusions and Recommendations: Summarized insights and actionable recommendations for industry professionals.
• Appendices: Additional resources and references to support further research and exploration.

Conclusion

The PD CEN/TR 17792:2022 report is an invaluable resource for anyone involved in the railway industry. Its comprehensive coverage, up-to-date information, and expert insights make it a must-have reference for ensuring the safety, efficiency, and reliability of railway systems. Whether you are an engineer, designer, maintenance professional, or regulatory authority, this report will provide you with the knowledge and guidance you need to excel in your field.

PD CEN/TR 17792:2022

This standard PD CEN/TR 17792:2022 Railway Applications. Wheel-rail contact geometry parameters. Technical report and background information about EN 15302 is classified in these ICS categories:

• 17.040.20 Properties of surfaces
• 45.060.01 Railway rolling stock in general

This document 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 the standard. The range of equivalent conicity results obtained with different software tools is described. The additional wheel-rail contact parameters, rolling radii coefficient and nonlinearity parameter, are explained. More information is also provided on the different calculation methods and the updated reference profiles for the assessment. The influence of simplifications used in determination of equivalent conicity is discussed. To provide more information 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 are included as well as assessments of the smoothing process. 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. Interpretation of equivalent conicity results, using tools such as conicity maps, is discussed and various approximations such as ‘quick conicity’ assessments are also described. Information is included on possible additional wheel-rail contact parameters, not yet ready for standardization, but where further experience is needed. NOTE In this document the commonly used term “wheel-rail contact geometry” is used as a synonym for the more precise term “wheelset-track contact geometry”.