What is BS EN 14531-2 - Step by step calculations for train sets or single vehicles about?
BS EN 14531 is a European standard on methods for calculation of stopping and slowing distances and immobilization braking in railways. BS EN 14531-2 provides the best industry guidance on step-by-step calculations for train sets or single vehicles.
BS EN 14531-2 is the second part of a multi-part series that describes the step-by-step method for the calculation of brake performance utilizing time step integration which may be used for all types of train sets, units, or single vehicles, including high-speed, locomotive, and passenger coaches, conventional vehicles, and wagons.
BS EN 14531-2 enables the verification by calculation of the stopping and slowing performance for high-speed and conventional trains operating on high-speed and conventional infrastructure. It may also be used for the detailed investigation of stopping or slowing performance at any design/verification stage.
The proposed method of BS EN 14531-2 is based on a numerical time integration algorithm. The standard explains a simple numerical integration scheme to provide a useful straightforward example of the proposed method. Other numerical time integration algorithms exist, especially more accurate ones, but they are not in the scope of this standard.
When such methods have been used the order of accuracy that they achieve must be according to BS EN 14531-2.
BS EN 14531-2 also includes examples of distance and other dynamic calculations, see Annex B.
Note: BS EN 14531-2 does not specify the performance requirements. It enables the calculation of the various aspects of the performance: stopping or slowing distances, adhesion requirements, force calculations, etc.
Who is BS EN 14531-2 - Step by step calculations for train sets or single vehicles for?
BS EN 14531-2 on step-by-step calculations for train sets or single vehicles is useful for:
- Manufacturers of railways vehicles
- Test centres
- Regulatory bodies
Why should you use BS EN 14531-2 - Step by step calculations for train sets or single vehicles?
Brakes control is a very safety-relevant subsystem of the train since it must allow stopping of the train in all operating conditions. Optimal braking is reached if the use of a single lever by the driver results in an individual brakes force applied to each axle or bogie of the train.
BS EN 14531-2 guideline assists you with a general algorithm to conduct a step-by-step calculation, stopping distances calculation, slowing distances calculation, the accuracy of input values, brake equipment type characteristics, initial characteristics, operating characteristics, sharing, proportioning of the brake forces – achieved forces, total retarding force at train level, time step calculation, distance calculations, time calculations, and immobilization brake calculation for step by step calculations for train sets or single vehicles.
With compliance and obedience to BS EN 14531-2, you can efficiently assess step-by-step calculations for train sets or single vehicles for stopping and slowing distances and immobilization braking.
