During road cycling the cyclists can evaluate the behavior of a wheelset in terms of several performance requirements: among all, the wheels reactivity, defined as the wheels quickness in transforming cyclist actions into bicycle acceleration, resulted to be one of the main performance requirements perceived by the cyclists.
Behavior of the vehicle when riding along track curve is influenced by the wheelset guidance design.
The collision speed of the wheelset is the most important factor affecting impact derailment.
Several intersection points of 'forward' and 'backward' modes of wheelset modes with multiplicity 2 are shown in Fig. 4, which indicates wheelset resonances are affected by the rotation of the wheelset.
The rotating flexibility of the wheelset produces a higher longitudinal force when compared with a non-rotating flexible wheelset, while the vertical and lateral forces show little difference between the two wheelset models.
The flexible wheelset had many mode shapes which might affect the wear of the wheel profile, and thus the flexibility of the wheelset could not be ignored.
This is due to a compensation of the wheelset flexibility to the contact forces.
The paper studies the non-linearity of the wheelset caused by profiled wheel-rail contact surfaces and develops a recursive non-linear Kalman filter to provide reliable and accurate estimations of the wheelset state.
Figure 3 shows the vertical receptance of the contact point of the wheelset.
