By contrast, detection of axle-box acceleration is a simple and economical method, whose advantage is that accelerometer can be easily installed on existing standard vehicles without limitation of running speed of vehicles .
As mentioned above, geometric gradient-dependent wheel-rail force and axle-box acceleration are feasible and reliable methods for assessing rail weld.
The wheelset in these models was generally considered as a rigid body, so that the response of axle-box acceleration, which oscillates as local vibration, cannot be obtained.
Relation of Geometric Gradient, Dynamic Wheel-Rail Force, and Axle-Box Acceleration
Quantitative Relation of Dynamic Wheel-Rail Force and Axle-Box Acceleration.
Taking into account the cases in Section 3, the relation of axle-box acceleration and maximum dynamic force is established, as shown in Figure 10.
The figure shows that the corresponding axle-box acceleration against the safety limit of 90 kN is 220 m/[s.sup.2].
Engineering Cases Study: Evaluation of Dynamic Force Based on Measured Rail Welds and Axle-Box Acceleration
Three methods treating relationship among geometrical gradient, wheel-rail force, and axle-box acceleration have been obtained.
NORDIC BUSINESS REPORT-14 June 2006-SKF receives new axle-boxes order from Bombardier Transportation in Germany(C)1994-2006 M2 COMMUNICATIONS LTD http://www.m2.com
The Swedish bearings and seals manufacturer SKF said on Wednesday (14 June) that it has received a new order for axle-boxes and roller bearing units from Bombardier Transportation in Germany.
The bearings will be manufactured in Germany while the axle-boxes will be manufactured in France.