Equivalent Conicity

“Equivalent Conicity” allows for the precise analysis of the wheel rail interface. This measurement module provides the basis for determining of possible vibrations and irregularities in vehicle dynamics as well as critical speed of railway vehicles. The conicity value (EC), calculated according to UIC 519 norm and EN 15302 norm, describes the railway vehicle motion pattern, which in turn permits drawing conclusions on the driving comfort and safety. The equivalent conicity results from geometry and profile of the wheel and rail.

Calipri measurement devices are approved and used i.a. in Germany (DB), Austria (ÖBB), Switzerland (SBB), France (SNCF), China (Chengdu Railway Bureau) and the Czech Republic (SŽDC).