VOCO
VOCO Software
VOitures en COurbe
Contact: Michel Sébès.
Software for modeling and simulating the dynamics of rail vehicles
Key features of VOCO:
- Input/output interfaces via MATLAB
- Selection of pre-existing multi-body vehicle models
- 3D representation of the vehicle, identification of connections between bodies, parameter verification
- Verification of symmetries and identical connections, automatic generation of a file listing the vehicle properties
- Selection of multi-Hertzian or semi-Hertzian wheel-rail contacts
- Linear elastic models, simplified plasticity option
- Selection of standard theoretical tracks, parameter graphs, track layout
- Selection of local defects or actual measured tracks
- Tracking of a speed profile, constant speed, or free-wheeling
- Modeling of new vehicles
- Modification of existing models
- Creation of contact files based on wheel-rail pairs
- Assignment of wheel-rail pairs by axle, right or left side
- Creation of theoretical track types
- Creation/superposition of analytical local defects
- Control of simulation parameters: duration, time step, initial speed…
- Real-time simulation of the vehicle on the track (echo in MATLAB window)
- Simulation of standard scenarios (UIC 518, EN 14363)
- Twist test simulation
- Linear critical speed simulation
- Modal analysis
- 3D animation of vehicle movements and contact forces
- Result graphs: all parameters of solid-to-solid connections, all DOFs of solids
- 3D animation of forces in selected connections
- 3D animation of contact stresses
- Result plots: forces, degrees of freedom, Y/Q, pressure, rolling contact trace…
- Analysis of contact stresses on and within the rail, T-Gamma criteria, Dang Van criterion
- Export of stresses to other ANSYS and STARAIL models, and to Excel format.