Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 469-487 |
| Number of pages | 19 |
| Journal | Vehicle System Dynamics |
| Volume | 52 |
| Issue number | sup1 |
| Early online date | 23 May 2014 |
| DOIs | |
| Publication status | Published - 2014 |
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Wheel–rail contact : Experimental study of the creep forces–creepage relationships. / Alonso, A.; Guiral, A.; Baeza, L.; Iwnicki, Simon.
In: Vehicle System Dynamics, Vol. 52, No. sup1, 2014, p. 469-487.Research output: Contribution to journal › Article
TY - JOUR
T1 - Wheel–rail contact
T2 - Experimental study of the creep forces–creepage relationships
AU - Alonso, A.
AU - Guiral, A.
AU - Baeza, L.
AU - Iwnicki, Simon
PY - 2014
Y1 - 2014
N2 - The wheel–rail contact problem plays an important role in the simulation methods used to solve railway dynamics problems. As a consequence, many different mathematical models have been developed to calculate wheel–rail contact forces. However, most of them tackle this problem purely from a theoretical point of view and need to be experimentally validated. Such validation could also reveal the influence of certain parameters not taken into account in the mathematical developments. This paper presents the steps followed in building a scaled test-bench to experimentally characterise the wheel–rail contact problem. The results of the longitudinal contact force as a function of the longitudinal creepage are obtained and the divergences with respect to Kalker's simplified theory are analysed. The influence of lateral creepage, angular velocity and certain contaminants such as cutting fluid or high positive friction modifier is also discussed.
AB - The wheel–rail contact problem plays an important role in the simulation methods used to solve railway dynamics problems. As a consequence, many different mathematical models have been developed to calculate wheel–rail contact forces. However, most of them tackle this problem purely from a theoretical point of view and need to be experimentally validated. Such validation could also reveal the influence of certain parameters not taken into account in the mathematical developments. This paper presents the steps followed in building a scaled test-bench to experimentally characterise the wheel–rail contact problem. The results of the longitudinal contact force as a function of the longitudinal creepage are obtained and the divergences with respect to Kalker's simplified theory are analysed. The influence of lateral creepage, angular velocity and certain contaminants such as cutting fluid or high positive friction modifier is also discussed.
KW - wheel–rail contact
KW - experimental results
KW - creep forces
KW - sand
KW - oil
KW - Friction modifiers
U2 - 10.1080/00423114.2014.907923
DO - 10.1080/00423114.2014.907923
M3 - Article
VL - 52
SP - 469
EP - 487
JO - Vehicle System Dynamics
JF - Vehicle System Dynamics
SN - 0042-3114
IS - sup1
ER -