BEnefits: Reduce Noise

The high pitched squealing noise many trains make as they negotiate a curve can be intensely irritating to both passengers and local residents. As a result, noise control is a subject of considerable interest to many railway operators as well as to their stake holders. Squealing wheels can be unpleasant for passengers either in the car or on the station platform.

There are many different sources of noise from trains, such as engines / motors etc. There are two primary sources of noise from the interface of the rail and the wheels. These are so-called "rolling noise" present in tangent (straight) track, and wheel squeal, which is mainly present in curves. Although rolling noise receives a great deal of attention because the majority of track is straight, wheel squeal can be a particular problem because the high pitched noise is particularly irritating to the human ear.

Wheel squeal is related to frictional instability between the wheel tread and the top of the rail, as the fixed axles of the cars negotiate a curve. Although contact between the wheel flange and the rail can contribute to noise, it is not usually the source of wheel squeal, a fact that is often not understood by rail operators. The frictional instability is manifested as roll-slip oscillations between the wheel tread and the top of the rail. The web of the wheel in turn amplifies these oscillations. It is the vibrations of the wheel web that are actually heard by the human ear.

Rolling noise is to a large degree related to the roughness of the wheel and the rail.

Top-Of-Rail Friction Control

Trackside Noise SolutiONS

Transit
Intelligent Trackside/Wayside Top-Of-Rail Friction Control System

Kelsan® KELTRACK® Liquid Top-Of-Rail Friction Modifier

Portec Rail Protector® IV Trackside Top-Of-Rail Application System

Freight
Intelligent Trackside/Wayside Top-Of-Rail Friction Control System

Kelsan® KELTRACK® Liquid Top-Of-Rail Friction Modifier

Portec Rail Protector® IV Trackside Top-Of-Rail Application System



Onboard Noise SolutioNS

Transit
OnBoard Transit Top-Of-Rail Friction Control System

Kelsan® HPF (High Positive Friction) Solid Stick Top-Of-Rail Friction Modifier

hi-rail vehicle NOISE Solution

Hi-Rail Vehicle Mounted
Intelligent Hi-Rail TOR Friction Control System

Kelsan® KELTRACK® Liquid Top-Of-Rail Friction Modifier

Portec Rail Road-Runner® 361 Hi-Rail™ Top-Of-Rail Application System

Reduce Noise

Increase Rail Life

Increase Wheel Life

Fuel Efficiency/ Green House Gas Savings

Reduce Lateral Forces

Reduce Short Pitch Corrugations

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Meet the Kelsan® AutoPilot™ Car Based TOR Application System.

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Cut costs by substantially reducing Industrial Crane Wheel Flange and Tread Wear!
Meet Kelsan® SL & SFM Solid Sticks System. Designed specifically for Industrial Crane Wheel Applications.

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Presentations
See why Kelsan LCF is the best Solid Stick Lubricant.

• LCF Presentation (7.0MB)

See why Kelsan is the leader in Wheel/Rail Friction Control.

• Transit (5.2MB)
• Freight (4.7MB)
  

Noise Reduction
Watch KELTRACK® cut noise by more than half

• 56K Modem (1.0MB)
• Cable or DSL (4.7MB)
  

Read about KELTRACK® cutting noise by more than half.

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Extend Rail/Wheel Life
Class 2 railroad reduces planned rail replacement by 87% using KELTRACK® Hi-Rail.

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