Largest high speed turnout

For the first time, a complete turnout, including all signal, point machines and asset monitoring components as well as small parts, has been designed in 3D. The 3D model of the integrated turnout system of this geometry comprises a total of more than 150,000 parts. The entire workflow in the technical departments for this design is controlled via the Teamcenter PLM system. This enables cross-location collaboration between all five companies involved under optimum conditions, so that all quality aspects and potential interface issues can be identified and resolved at an early stage.

The complete design of a turnout in 3D has a number of other advantages:

• Multi-body simulation: Multi-body simulation is used to determine movement, acceleration and forces, taking
  various operating parameters into account.
• Finite element calculations: The finite element calculation is carried out to verify the operational stability of the
  relevant components in accordance with customer requirements and international standards.
• Digital twin: The so-called digital twin is an IFC format model for integration into the BIM customer model.

The high-speed turnout 60-25000/7350/∞-1:49.3 (T7350-49T) is designed as “double clothoid turnout” with clothoids at the entry and the exit of the branch track. Leading into the branch track the entry clothoid closes from a radius of 25,000 m to 7,350 m. This makes the turnout suitable for branching speeds up to 230 km/h. The clothoid at the exit opens from a radius of 7,350 m to the straight branch track. All limit values for jerk and acceleration are also strictly adhered to with this geometry. The jerk in this high-speed turnout is a sensational 152.4 mm/s. This corresponds to an impressive reduction of 88% compared to standard market values. The design speed for running on the main track is 400 km/h.