Rail-Wheel Interaction
Rail carriage HVAC
Stress, Strain, Fatigue…
Contact, Links, Joints…
Vibrations
Gearboxes
Loading, unloading; hopper…
Next-generation / Hyperloop
Signalling, software certification
Simulation tools in rail industry
Optimising heating, ventilation and cooling (HVAC) of train carriages
Regulations and customer demands put pressure on rail designers to deliver passenger coaches with comfortable climates. In the past, Siemens engineers spent about four months testing passenger coaches in a climate wind tunnel to validate the design of the heating, ventilation and cooling (HVAC) system. Now they use ANSYS Fluent computational fluid dynamics (CFD) software to validate the design before building the first coach to reduce the testing time and cost by up to 50 percent. Read more
Hyperloop capsule aerodynamics
First proposed by the visionary entrepreneur Elon Musk, the hyperloop is a revolutionary high-speed mass transit system that will transport goods and people between cities at close to the speed of sound while seated in capsules that run inside long tubelines.
Before investing in massively expensive prototypes and test tracks, advanced engineering simulation software from ANSYS can precisely predict what will work and what will not, by letting engineers examine the physics of the hyperloop with real details, all inside a computer.
Overloading of a train bogie on a railway track
Material Handling
Ventilating giant railway tunnels
When designing a railroad tunnel, the ventilation system is a critical component. The ventilation units themselves consist of longitudinal jet fans that are placed at several positions along the tunnel.
Traditionally, 1-D or 2-D simulations have been satisfactory to predict the average pressure correctly inside the tunnel. Only by means of a complete 3-D simulation, though, is it possible to obtain an accurate estimate of the velocity components, magnitude and their distribution in the tunnel sections in order to allow for accurate fan sizing. Read more
Preventing traction problems in extreme weather
Simulation helps prevent traction problems for rail travel during extreme weather conditions. Read more
Model-based software development environment
Model-based development in the railway domain: Interlocking systems comprise thousands of controlled elements with life cycles lasting 30 years. For their design, Siemens decided on the SCADE Suite model-based development environment. Read more
ANSYS in Ground Transportation – Knorr Bremse
Problem
Knorr-Bremse is searching for new and innovative measures to improve the safety of trains, including advanced braking systems.
Solution
The company uses ANSYS structural mechanics simulation in conjunction with HPC for a wide variety of application including strength analysis of brake units, static and dynamic analysis of brake control units, fatigue analysis of multi-bolted joints and topology optimization of the parts of brake units.
“ANSYS tools help us improve the quality of our products, ensure the
satisfaction of our customers and be competitive in the market.” – Knorr-Bremse
