VZLU cooperates on the development of land transport vehicles such as cars, buses, trains and trams contributing by specific activities. VZLU´s competency in aerodynamics and strength of structures can be utilized for transport vehicles development. Customers from the automotive industry and other segments of surface transport exploit testing infrastructure of VZLU and its affiliate VZLU TEST.
Theoretical and experimental work is linked to the reduction of aerodynamic drag of a car body and its elements like spoilers, rear-view mirrors, air and cooling inlets and the interaction with the road. Calculations and flow simulations are based on commercial and in-house CFD codes. Flow calculations and CFD simulations are often validated by experiments in the wind tunnel. Aerodynamic studies are required when placing railway corridors and assessing the safety of passengers standing on platforms. Wind tunnels in VZLU are used for testing scaled models of vehicles or for testing of vehicles parts in full size.
For manufacturers of ground vehicles VZLU also provides FEM structural analyses and strength tests relating to the lifetime of chassis, vehicle frames and other extremely loaded parts of vehicles. In some cases, impact tests are performed to simulate the impact of bodies on a fast-moving vehicle and examine the extent of damage.
Some developmental and qualification tests for the systems and components of ground vehicles are carried out in the subsidiary VZLU TEST. Namely, it concerns climatic and mechanical (vibration) resistance tests for the automotive sector. VZLU TEST also provides the pressure vessels tests and components tests of LPG / CNG systems.
See the following links for more information:
- Low-speed wind tunnel measurements
- CFD calculations and simulations
- Research on active flow control
- Development and application of optimization methods
- Aerodynamic work for railway industry
- FEM calculations, structure analyses and simulations
- Structural tests, experimental evaluation of structures
- Determination of material properties and experimental stress analysis
- Metallography and materialographic analyses
- Structure resistance to high velocity impacts, incl. “bird strikes“