Lateral
forces are a result of curving resistance
to a fixed axle. They should not be
confused with centrifugal forces.
Lateral forces increase with increasing
angle of attack of the wheelset to
the rail.
They are also
the forces that tend to push rail
outwards as a train negotiates a curve,
which in extreme cases can result
in a type of derailment known as rail-rollover
derailment. These forces are widely
believed to be responsible to accelerated
failure of track structure components
such as spikes, ties, clips etc. They
are also associated with higher rail
and wheel wear.
Lateral forces
are usually proportional to vertical
load. So as railroads have increased
axle load, the tendency has been to
increasing lateral loads.
Lateral
forces are measured with specially
instrumented track, using strain gauges
mounted on the rail. Lateral forces
up to 30000 lbs have been measured
on sharp curves with loaded freight
trains. Some railroads consider that
typical track structure components
can withstand only up to 10000 lbs
force.
Lateral
Force Solutions
Top
of Rail Friction Control
 
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
 
Transit
OnBoard
Transit Top-Of-Rail Friction Control
System
Kelsan®
HPF (High Positive Friction) Solid
Stick Top-Of-Rail Friction Modifier
Freight
Locomotive Mounted
Intelligent
Freight
Locomotive Mounted Top-Of-Rail Friction
Control System
Kelsan®
KELTRACK® Liquid
Top-Of-Rail Friction Modifier
Lubriquip TrackMaster
LLIC ™ Locomotive
Mounted Top-Of-Rail Application System
Freight
Car Mounted
Intelligent
OnBoard Freight Car Top-Of-Rail Friction
Control System
Kelsan®
KELTRACK® Liquid
Top-Of-Rail Friction Modifier
Kelsan® AutoPilot™
Car Based Top-Of-Rail Application
System
 
Freight
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 |
