PD CEN/TR 17469:2020

What is PD CEN/TR 17469 about?  

PD CEN/TR 17469 describes the stage of knowledge resulting from the Euraxles project about the design of the axle and further steps to be taken. 

PD CEN/TR 17469 is the support: 

• To define the loads to be taken into account 
• To describe the stress calculation method using finite elements and the validation processes associated 
• To specify the maximum permissible stresses to be assumed in calculations and the safety factors to be used 

NOTE: This technical report is applicable for: 

• Wheelset Axles defined in EN 13261 as “pure wheelset” 
• Other axle designs such as those encountered in particular rolling stocks e.g. with independent wheels, variable gauges, urban rail 

Who is PD CEN/TR 17469 for? 

PD CEN/TR 17469 on railway axle design is useful for: 

• Railway engineers 
• Manufacturers of railway axle 
• Wheelset designers 

Why should you use PD CEN/TR 17469?  

The wheels on each side of a train vehicle are connected with a metal rod called an axle which helps keep the two train wheels moving together, both turning at the same speed when the train is moving. PD CEN/TR 17469 provides the methods to design these rail vehicle axles. 

PD CEN/TR 17469 also describes the reliability analysis based on the stress strength interference analysis method to ensure safety margins applied to the specified loads and the prescribed fatigue limits. 

PD CEN/TR 17469 covers the numerical modelling of axles and some recommendations for axle modelling and gives its calculation methods. 

Testing methods to evaluate the fatigue limit and fatigue damage calculations for railway axles giving safety factors are also described in PD CEN/TR 17469. 

PD CEN/TR 17469 assists you in designing railway vehicle axles to withstand a maximum axle load that is determined by train speeds, rail weight, sleeper and fixture density, amount and standard of ballast, and the strength of bridges and earthworks.