shaping the railway of the 21st century rail freight noise abatement in europe j. gräber, db ag, 25...

Shaping the railway of the 21st century

Rail Freight Noise Abatement in Europe

J. Gräber, DB AG, 25 October 2005, Paris

UIC/UIP/CER Action Programme

Noise Reduction

- Composite Brake Block Technology -(a project of UIC SG 5)




Introduction

Status of Product Homologation andTechnological Development

Status on proposed Life Cycle Cost (LCC)

Contents:




For effective and efficient Noise Reduction it needs

Smooth Wheels on smooth track!!

Smooth Wheels ==> Composite Brake Blocks

Smooth Track ==> Special Grinding




Actually there are 3 types of brake blocks by different manufactures available for the wagon equipment:

Cosid 810 approved since October 2003

Becorit 929-1 SG approved since July 2005 substitute to Becorit 929-1

Jurid 816 M approved since July 2005 substitute to Jurid 816

Details see document:“Design Rules for Composite (K) Brake Blocks” on UIC Website

Progress on expanding K block product portfolio




Actually there are 3 types of provisionally approved brake blocks by different manufactures available for the wagon equipment:

ICER Becorit IB116 provisionally approved since February 2005

CoFren C952 provisionally approved since February/July 2005

Jurid PM 132 provisionally approved since July 2005

Details see document:“Usage Guidelines for Composite (LL) Brake Blocks” on UIC Website

Progress on expanding LL block product portfolio




Development of efficient test procedures:

1. Winter Testing Conditions

2. Brake Failure Simulation

3. Wear Behaviour Simulation (brake block and wheel)

4. Shunt capability (famously known as “Shuntage”)

Inclusion of these efficient test procedures in UIC-Leaflet and EN:

5. Revision of UIC Leaflet 541-4 and transfer to EN

Technical / in-service work item:

6. Stopping force of the hand/parking brake

General fundamentals – Overview of open work items




Detailed report available (UIC DT 400)

==> Rough conclusions:On the basis of economic evaluations the LCC of the couple “Composite Brake Block (CBB) / wheel” are comparable to that of “cast iron / wheel” if

• the service life of the Composite Brake Blocks is more than tripled compared to cast iron and

• the rate of wear of the wheel is less than doubled• Materials are available, that meet these requirement!

The LCC can be influenced very positively, if the maintenance concept is adapted to the reduced wear rate of the brake blocks.

Overview on LCC activities K-blocks




Report will be available by end of 2007 after the actually running in-service tests

==> Rough estimation:• Materials will be available to reach cost neutrality

Overview on LCC activities LL-blocks




Thank you for your attention!

shaping the railway of the 21st century rail freight noise abatement in europe j. gräber, db ag, 25...

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