Abstract
This paper reports fundamental research on the general conditions for railway wheel polygonal wear to evolve. A common workflow for prediction of railway wheel polygonization is presented including assumptions, simulation scheme, and wear models. Based on this workflow, some rules for the evolution of railway wheel polygonization are proposed providing innovative perspectives to understand the basic mechanism of railway wheel polygonization. After summarising these rules, the general conditions for railway wheel polygonal wear to evolve are established. The phase between the instantaneous wear depth and the excitation is the key indicator determining the wheel OOR (Out-Of-Roundness) evolution direction (to grow or to diminish). The evolution tendency curve obtained from the instantaneous wear FRF (Frequency Response Function) is a useful tool to predict the OOR evolution, especially for predicting the OOR order that would grow predominantly at a given speed. If one or more structural modes can dominate the evolution tendency curve, and the energy distribution of track excitation allows this/these structural modes to be excited effectively, corresponding OOR orders can occur dominantly.
| Original language | English |
|---|---|
| Journal | Vehicle System Dynamics |
| Early online date | 1 Dec 2019 |
| DOIs | |
| Publication status | E-pub ahead of print - 1 Dec 2019 |
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General conditions for railway wheel polygonal wear to evolve. / Peng, Bo; Iwnicki, Simon; Shackleton, Philip; Song, Yang.
In: Vehicle System Dynamics, 01.12.2019.Research output: Contribution to journal › Article
TY - JOUR
T1 - General conditions for railway wheel polygonal wear to evolve
AU - Peng, Bo
AU - Iwnicki, Simon
AU - Shackleton, Philip
AU - Song, Yang
PY - 2019/12/1
Y1 - 2019/12/1
N2 - This paper reports fundamental research on the general conditions for railway wheel polygonal wear to evolve. A common workflow for prediction of railway wheel polygonization is presented including assumptions, simulation scheme, and wear models. Based on this workflow, some rules for the evolution of railway wheel polygonization are proposed providing innovative perspectives to understand the basic mechanism of railway wheel polygonization. After summarising these rules, the general conditions for railway wheel polygonal wear to evolve are established. The phase between the instantaneous wear depth and the excitation is the key indicator determining the wheel OOR (Out-Of-Roundness) evolution direction (to grow or to diminish). The evolution tendency curve obtained from the instantaneous wear FRF (Frequency Response Function) is a useful tool to predict the OOR evolution, especially for predicting the OOR order that would grow predominantly at a given speed. If one or more structural modes can dominate the evolution tendency curve, and the energy distribution of track excitation allows this/these structural modes to be excited effectively, corresponding OOR orders can occur dominantly.
AB - This paper reports fundamental research on the general conditions for railway wheel polygonal wear to evolve. A common workflow for prediction of railway wheel polygonization is presented including assumptions, simulation scheme, and wear models. Based on this workflow, some rules for the evolution of railway wheel polygonization are proposed providing innovative perspectives to understand the basic mechanism of railway wheel polygonization. After summarising these rules, the general conditions for railway wheel polygonal wear to evolve are established. The phase between the instantaneous wear depth and the excitation is the key indicator determining the wheel OOR (Out-Of-Roundness) evolution direction (to grow or to diminish). The evolution tendency curve obtained from the instantaneous wear FRF (Frequency Response Function) is a useful tool to predict the OOR evolution, especially for predicting the OOR order that would grow predominantly at a given speed. If one or more structural modes can dominate the evolution tendency curve, and the energy distribution of track excitation allows this/these structural modes to be excited effectively, corresponding OOR orders can occur dominantly.
KW - Railway wheel polygonization
KW - polygonal wear
KW - general conditions
KW - evolution mechanism
UR - http://www.scopus.com/inward/record.url?scp=85076142335&partnerID=8YFLogxK
U2 - 10.1080/00423114.2019.1697458
DO - 10.1080/00423114.2019.1697458
M3 - Article
JO - Vehicle System Dynamics
JF - Vehicle System Dynamics
SN - 0042-3114
ER -