1 / 14

Noise reduction in Railway Traffics

Noise reduction in Railway Traffics. Noise reduction in Railway Traffics. Problem: „Wheel squealing“ when travelling through curves high-frequent, disturbing noises Noise problem for the neighborhood high costs for noise preventing measures. Reasons:

shafira-alexander
Download Presentation

Noise reduction in Railway Traffics

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Noise reduction in Railway Traffics TRAM-SILENCE / 1

  2. Noise reduction in Railway Traffics Problem: • „Wheel squealing“ when travelling through curves • high-frequent, disturbing noises • Noise problem for the neighborhood • high costs for noise preventing measures TRAM-SILENCE / 2

  3. Reasons: • different distances for outer and inner wheel in curves • differential slip • torsion of the axles • Stick-slip-Effects, normally on the low rail TRAM-SILENCE / 3

  4. Remedy: • steered wheel sets: better adaptation of the axles to the curve radius • Disadvantage: high costs, reduces only wheel flange wear TRAM-SILENCE / 4

  5. Remedy: • Rail Head Treatment with intermediate agents TRAM-SILENCE TRAM-SILENCE 00 TRAM-SILENCE / 5

  6. Remedy: • TRAM-SILENCE is applied manually onto the rail head • Consumption as low as possible • Application on the low rail is normally sufficient • Beginning some meters before the curve starts • End normally some meters behind the starting point of the curve • Bidirectional traffic: Application from the center of the curve in both directions TRAM-SILENCE / 6

  7. Remedy: • Recently, we had a lot of inquiries for a product which can be applied automatically • This can be done with TRAM-SILENCE at „normal“ temperatures, e.g. with REBS-lubricators • TRAM-SILENCE is not sprayable at low temperaturs • Therefore: Modification TRAM-SILENCE 00 TRAM-SILENCE / 7

  8. Composition:TRAM-SILENCE TRAM-SILENCE 00 Base oil: native synthetic Thickener: Ca-Seife inorganic Solids: Metal powder, Graphite Properties: First results of spray tests with TRAM-SILENCE 00: Sprayability down to -20°C possible • BEKA Fluilub • Vogel SP 9 • REBS (-15°C) TRAM-SILENCE / 8

  9. Customers: • several local tramway operators in Germany Jena, Frankfurt/Oder, Leipzig, Gera, Dresden etc. • Deutsche Bahn AG (pre-trials) • Dutch Railway NS (Practical trial) • Spanish Railway RENFE and some local operators • several Australian operators • Several swiss operators TRAM-SILENCE / 9

  10. Customers: TRAM-SILENCE / 10

  11. Consumption rates and results • Consumption rate is dependent from local conditions e.g. Curve radius, Rail- and Wheel condition, Weather etc. • Slogan: as much as necessary, as few as possible • Braking, traction and signalling must not be affected • Friction coefficient with TRAM-SILENCE is not worse than on wet rails • Rough estimation of consumption: ca. 0,1 g/m on the low rail TRAM-SILENCE / 11

  12. Future aspects • Demand for these products will increase because the problem awareness is increasing • Application changes over more and more to automatic lubricators • We shoul actively discuss these problems with our customers. Their problems are waiting for solutions. • We should not talk about Rail Head Lubrication, but about Rail Head Treatment. • There is a huge potential for these products. TRAM-SILENCE / 12

  13. TRAM-SILENCE / 13

  14. Noise reduction in Railway Traffics TRAM-SILENCE / 14

More Related