Thesis Open Access
EXTENT OF ADHESION LOSSES IN THE WHEEL- RAIL CONTACT UNDER CONTAMINATED CONDITIONS
Mesfin G/Tsadik
Railway vehicles require a certain level of adhesion between wheel and rail to operate efficiently, reliably, and economically. Different levels of adhesion are needed depending on the vehicle running conditions. In the wheel tread–railhead contact, the dominant problem is low adhesion, as low adhesion on the railhead negatively affects railway operation: on one hand, the vehicle will lose traction resulting in delay when driving on low-adhesion tracks; on the other hand, low adhesion during deceleration will extend the braking distance, which is a safety issue. This thesis examines the influence of several contaminants, i.e., water, mud, leaves, oil and grease, on the adhesion in the wheel tread–railhead contact. This study will also improve our knowledge of the low-adhesion mechanism and of how various contaminants influence adhesion
| Name | Size | |
|---|---|---|
|
f1042664640.pdf
md5:d45cbd5fd89e1d88df48cadeabb670f7 |
647.9 kB | Download |
| All versions | This version | |
|---|---|---|
| Views | 0 | 0 |
| Downloads | 0 | 0 |
| Data volume | 0 Bytes | 0 Bytes |
| Unique views | 0 | 0 |
| Unique downloads | 0 | 0 |
- Publication date:
- December 1, 2014
- DOI:
-
- Communities:
- License (for files):
- Creative Commons Attribution