ICR participates in the ambitious European project H2020 Shift2Rail TRANSIT
ICR participates in the European project TRANSIT (TRAin pass-by Noise Source characterization and separation Tools for cost-effective vehicle certification) by contributing its knowledge in the GTDT-ATPA method.
The TRANSIT project aims to provide the railway community with a set of innovative tools and proven methodologies to reduce the environmental impact and improve the interior acoustic comfort of railway vehicles.
Rail transport produces less CO2 and consumes less energy than other modes of land transport as well as air transport; furthermore, it also requires less space than road transport. However, noise and vibration (N&V) levels in the vicinity of rail infrastructure are a major environmental challenge for the sector.
To achieve greater acceptance in rail transport, it is necessary to be able to have a new generation of vehicles with a low noise profile, which will result in a lower environmental impact and therefore greater user comfort.
The aim of the European TRANSIT project is to achieve a breakthrough in virtual testing and virtual certification by developing validated source characterization, external noise simulation models and measurement based noise source separation techniques that can be incorporated into current test standards, such as the IST specifications.
The participation of ICR in this ambitious project consists of providing all the technological knowledge with respect to transmission path analysis methods. The specific analysis method of GTDT-ATPA allows obtaining the contribution of each subsystem as a decoupled element from the rest of the set.
The application of the method makes it possible to identify which part of the total noise comes from the track and which part comes from the wheels in order to prioritize interventions on particular components to reduce the levels of environmental noise impact. The method can also be applied in order to evaluate the individual contribution of each subsystem to the vibration propagated to the ground.
The project also aims to study and propose advanced acoustic solutions, including those based on metamaterials, with the goal of improving both the level of interior acoustic comfort and the acoustic impact of the railway infrastructure.
Among the expected results of this project are the reduction of costs and the effort in certification tests, a better comparability and reproduction of the test results, a deeper understanding of the contribution of different sources to the total pass-by noise, an improvement of the acoustic quality of trains, as well as the promotion of the competitiveness of the railway industry in the European Union (EU) and its social acceptance.
For more information about the project, you can visit the official website: http://transit-prj.eu