Method for determining modal parameters of road or rail vehicles and method for indirect characterization of road profiles or rail profiles

摘要

The movement or velocity or acceleration (at the assigned measuring point of the vehicle) of the polar (λ _n ) and modal vector (ψ _n ) of the road or rail vehicle in the operating state provided with at least two wheels A method of identification by analysis of the system), the pole and modal vectors fitting data on the output of the system based on a mathematical model that describes the interaction between a road or railway track and the vehicle Assuming that the vehicle travels at a constant speed on a curved portion having a straight track or a constant radius, and assuming that the vehicle travels on a uniform ergodic surface having a Gaussian distribution. , Said at least two wheels move on one profile or on a plurality of profiles parallel to one another Assuming that the inlets induced by the road surface or rail surface for the vehicle can not be traced back to a sequence of white noises, but are correlated with one another in time and / or space. , Characterized, how. [Selected figure] Figure 2