The report presents the results of an analysis of the dynamics of individually rotating wheel systems for use on high speed rail systems such as the Tube Vehicle System (TVS). The objective of this system is to remove the hunting stability problems of conventional rail-wheel systems and thus improve the vehicle ride comfort and safety. The analysis indicates that the use of independently rotating wheel systems eliminates the standard hunting instability, but it introduces a lightly damped but stable oscillation of its own. However, by increasing the yaw stiffness, the frequency of this oscillation can be moved beyond the low point in the human vibration tolerance limit. When this is done, the ride response is improved over that for a conventional integral wheel system. (Author)
Dynamics of Independently Rotating Wheel Systems
1970
74 pages
Report
No indication
English
Pipeline Transportation , Railroad cars , Wheels , Dynamics , Rotation , Equations of motion , Law , Vibration , Stability , Safety , Stiffness , Damping , Mathematical models
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