Equivalent conicity
The equivalent conicity can be calculated for each wheel-rail interface, in function of the lateral displacement of the hunting motion.
The contact geometry is a set of functions:
Difference of rolling radius right and left
Tangents of contact angles
Coordinates of right contact points
Coordinates of left contact points
Equivalent Conicity
Steering index
Data integration
The software can calculate all parameters of contact geometry for wheel-rail and wheelset-track coupling, knowing the profiles of the wheel and of the rail.
Contact 4.0 is interfaced with all DMA instruments for wheel and rail profile measurement, both manual and optical without Contact 4.0. It is possible to use data coming from third-party sources.
The most important commercial file structure formats are included in a file import module, but it is possible to develop customized import modules.
Options
The potential of having a large amount of data measured with the DMA instruments, allows for many calculation options.
The wheel-rail calculation possibilities are:
Single wheel-rail contact calculation
All possible combinations between a number M of wheelset profiles and a number N of tracks profiles (MxN single calculations)
Continuous diagram of equivalent conicity obtained by multiple calculations between a wheelset and all the sections measured on track section
Example of Contact 4.0 output
Download the Contact 4.0 Demo
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