Check that it is possible to fulfill required standards
Check that the customer's demands are reasonable
Calculate the price
Design of new vehicles
Make sure that the required standards are fulfilled:
safety, derailment, wheel unloading, track-shift forces,,, etc.
Make sure that the customer's demands are fulfilled:
comfort, wheel/rail wear, RCF,,, etc.
Considerations must be taken to the curve distribution of customers track
If customer requirements are not met, the manufacturer may suffer from delivery penalties
Calculate dynamic forces acting on the structure for estimation of fatigue
Calculate eigenvalues, to avoid that different eigenfrequencies coincide
Calculate critical speeds for different conicities
Calculate max dynamic motions of the vehicle (Gauging)
Writing purchase requests for suspension components
Test the suspension components at tolerance limits
Test what will happen if there is a failure in one or more of the suspension components
Test the vehicle under different wheel/rail-friction conditions
If the vehicle has friction dampers.
Test what will happen under very low and very high friction coefficients.
Re-building existing vehicles
Very similar to Design of new vehicles,
but the designer is not as free as in a design of a new vehicle.
However there is an advantage with modifying existing,
because in this case the vehicle designer has the possibilities to validate the model with the existing vehicle.
Study different shapes of transition curves
Choose the optimum length of a transition curve
Optimization of wheel and/or rail profiles
Test where to apply the controlling force and/or moment
Testing of different control strategies
Choose where to measure displacements, velocities, accelerations ,,,etc.