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From FEM analysis, to vibration and shock tests

REO gives special attention to the technically verified functionality and durability of all components. Additionally, all components must operate reliably in a temperature range of -40 up to +70°C.

Testing methods - e.g. FEM analysis based on a 3D model generated in Solid Works - provide information about physical values such as static and dynamic linear & non-linear voltage conditions, natural frequency, bolt strength, strength of welded seams, etc.
Making use of three-dimensional finite-element methods (3D FEM) and using various simulation tools, comprehensive calculations about structure mechanics, electromagnetic and thermal properties can be done prior to manufacturing.

The 3D FEM magnetic-field calculation process
Enables detailed calculations about magnetic flux densities and energies, the extent of leakage fields, inductances and much more. This data gives information about the influence on neighboring equipment and leads to compliance with the required standards. Optimization procedures get right to the heart of the manufacturing process to ensure efficiency right through production.

3D thermal simulation
Further testing and simulation, such as 3D thermal simulation, add to the set of analysis available and provide insight into quality and potential for improvement of the components. Used in addition to three-dimensional electromagnetic field calculations, it is an important analysis tool because it enables us to see inside the material and gain important information about local hot spots that can, over time, influence the expected service life. On top of that, complete thermal sequences can be simulated, giving information about thermal behavior and help in making decisions about the required cooling system.

Shock and vibration testing
Ensures high component reliability. Three-dimensional loading tests are carried out in accordance with DIN EN 61373 and using different loading levels, providing a realistic basis for evaluation as well as giving insights into the mechanical properties of the material used.

Fire protection
In order to comply with fire protection regulations, the combustion behavior of all railway components is verified by accredited testing laboratories. All these procedures and simulations are carried out using the latest engineering programs, and are carried out with in-house supervision or in our partner laboratories. In this way, REO ensures that the product range is consistently optimized and high quality is maintained.

REO also produces equipment for external testing houses. An example of this would be modular test sets for the testing of inductive components up to 216 kW DC for railway technology. The test units are equipped with an energy feedback system to transfer the energy back into the circuit to reduce testing costs.