The Whispering Train Program LLOYDS REGISTER RAIL EUROPE Developments in the Netherlands The Dutch...

The Whispering Train ProgramLLOYD’S REGISTER RAIL EUROPE

Developments in the Netherlands

The Dutch Whispering Train programme

Workshop on noise differentiated track access charges and other rail noise developments at the EU level

Brussels - 27 April 2010

Jasper Peen

[03-398516]


Content

The Whispering Train Program

Goal and approach

Results until now – equivalent conicity

Outlook



Whispering Trains Program

- Subsidized by Ministry of Transport

- In cooperation with ProRail, DB Schenker NL, AAE and other operators and wagon owners

- Project management, engineering, monitoring and analysis by Lloyd’s Register Rail

aims to contribute to a quick development and implementation of LL-blocks in Europe



Program Goal

LL-blocks

Determine Noise effect

Determine LCC

Optimise Maintainability

Contribute to homologation

Approach

In service tests started in 2006

200 wagons with LL blocks

4 different types of LL blocks

6 different types of wagons

Several fleetowners and operators, including transalpine

Extensive monitoring



Results

Noise effect: LL-blocks reduce noise satisfactorily

Wagons comply to TSI Noise levels (though testing not needed)

Durable noise reduction

LCC: many insights in wear and degradation patterns, no final conclusions

Equivalent Conicity issue

Focus activities in 2009

Determine influence blocks on Equivalent Conicity

Determine influence of Equivalent Conicity on:

Running stability

LCC

Reports are expected to be available end of May


Influence composite blocks on ECConclusions from analysis of more than 10.000 wheel profiles of 130 wagons

With composite-blocks increase of EC, with GG more/less stable

Huge differences

Type LL-block

Type of wagon/application

Especially the organic IB116* block has less influence on the EC, behaves comparable to other homologated organic brake blocks

Currently wagons with LL-blocks need to be inspected after 50.000 km

Results from in-service test throughout Europe will be collected and analyzed to extend current short inspection intervals of IB116*

0 0.5 1 1.5 2 2.5 3 3.5

x 105

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

km

EC

Development of EC on Sgns

Sgns C952 dataSgns C952 mean

Sgns C952 15% - 85%

Sgns IB116 data

Sgns IB116 meanSgns IB116 15% - 85%


Influence EC on running stability

• Measurements:Find relation equivalent conicity running stability

• Are the wagons within the pilots behaving within the applicable limit values?

• Acceleration measurements

• 20 wagons, 7 wagontypes

• Wheelset equivalent conicities: between 0.2 and 0.8


Influence EC on running stability

Current UIC statement Based on limited insights, max EC of 0.23 (unknown track quality) or 0.4 (known track

quality) allowed

Results of measurements Whispering Train

Up to EC of 0.6 no inadmissible running behaviour has been detected:

On wagon types considered

On track sections considered (mainly in NL, but also other countries)

With speeds considered (max 100 km/h!)

For these applications 0.6 could be used as limit


Influence Equivalent Conicity on LCC

Mileage before reprofiling is needed: Cast iron: 300.000 – 350.000 km LL-blocks in these applications:

Scenario for equivalent conicity limit

Block type ECmax = 0.23 ECmax = 0.6

A 50.000 – 100.000 170.000 – 250.000

B 50.000 – 100.000 170.000 – 250.000

C 150.000 – 200.000

> 250.000

Blocktype

Retrofitting costs Additional LCC costs per 1000 km

Min (2x Bg) Max (2x Bgu) Min (ECmax = 0.6) Max (ECmax = 0.23)

A € 1,200.00 € 2,160.00 € 3 € 31

B € 1,200.00 € 2,160.00 € 10 € 53

C € 800.00 € 1,360.00 € 4 € 17

Inspection costs wheelsets excludedCosts for homologation/brake tests excluded


Life Cycle Costs

0

2000

4000

6000

8000

10000

12000

14000

0 10 20 30 40Year

Ex

tra

co

sts

[N

PV

]

Limit value 0.60

Limit value 0.23

Influence Equivalent Conicity on LCC

Fits within Dutch funding system

Sgns Container wagon 2x Bgu, 100.000 km/yr, Block type C10% interest rate

Excluded extra costs for launch tests and special wheel monitoring

Max funding € 4800


Outlook further activities Whispering Train Program

Support UIC in solving technical issues Practical maintenance limits for the wheel profile to ensure safe running against

lowest costs

Extend inspection intervalls for wheels

Optimize brake block contour

Use of LL-blocks Based on the latest insights, some Dutch wagonkeepers are willing to apply LL-

blocks on freight wagons structurally

This decision has been supported by the Dutch NDTAC system

No final homologation: Temporarily needed measures (slip brake tests, wheel monitoring) will probably be funded by the Whispering Train Programme

Obstacle: how to get the bonus from the RU to the WK?


Conclusions

Positive experiences with LL-blocks, but influence on equivalent conicity

Equivalent conicity issue is hindering homologation and final LCC estimation of LL-blocks

Influence on safety limited in service for considered applications

Cost efficient use of LL-blocks is possible for considered applications

The Dutch cases show that LL blocks can be a safe and economical feasible solution. Wagonkeepers are willing to apply them, but…

……Equivalent conicity issue need to be solved; important is to investigate positive results further on the European scale

.…Solution needed on how to get the funding to the wagonkeeper

The Whispering Train Program LLOYD’S REGISTER RAIL EUROPE

The Lloyd’s Register Group works to enhance safety and approve assets and systems at sea, on land and in the air – because life matters.

For more information, please contact:

Lloyd’s Register Rail Europe B.V.P.O. Box 20163500GA UtrechtThe Netherlands

Tel +31 (0)30 7524 700Fax +31 (0)30 7524 800Email [email protected]

The Whispering Train Program LLOYDS REGISTER RAIL EUROPE Developments in the Netherlands The Dutch...

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