The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Through the development of measurement tool of rail and wheel profiles, it is much easier to acquire the precision data of the profiles. Although most of the digital data are used independently for the purposes of rail or wheel profile management at present, such data make it possible to analyze the contact status especially to identify the location of the contact point between rail and wheel tread...
Measurement of wheel–rail contact forces is very important, but it is not executed so often because of its difficulties. A new measuring method introduced in this paper can measure such contact forces without special wheelsets equipped with strain gauges and slip rings or telemeters. In this method the lateral contact force is measured from the lateral distortion of wheel measured directly by several...
In this paper we describe two new measuring methods of contact forces, derailment coefficient, and friction coefficient between wheel and rail. The new method from on-board side needs no special wheelset and can realize constant monitoring of derailment coefficient. The new method from track side can measure the change of contact forces continuously along the rail direction. The comparisons with conventional...
From full-scale stand tests, commercial line experiments and numerical simulation, we found that corrugation of rail in curve section of track is formatted by stick-slip vibration between wheel and rail, which is caused by the large creepage and vertical force fluctuation on wheel/rail contact surface. On the basis of this theory, we analyzed the growing process of corrugation by numerical simulation.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.