TY - JOUR
T1 - Experimental study on the development mechanism of short pitch corrugation using a downscale V-Track test rig
AU - Zhang, Pan
AU - Li, Zili
PY - 2023
Y1 - 2023
N2 - This paper presents an experimental study on the development mechanism of short pitch corrugation using an innovative downscale V-Track test rig. Rail corrugation is reproduced in the V-Track with two wavelengths of 6.4 mm and 8.9 mm. Based on the measured wheel-rail contact forces, track dynamic behaviors, and observations, the consistent development mechanisms of short pitch corrugation are identified. It is found the longitudinal mode at 574 Hz and the induced longitudinal dynamic force are dominant for corrugation formation at the major wavelength of 6.4 mm. This paper provides the first experimental evidence indicating that rail longitudinal vibration mode and its induced longitudinal force contribute to the consistent development of short pitch corrugation.
AB - This paper presents an experimental study on the development mechanism of short pitch corrugation using an innovative downscale V-Track test rig. Rail corrugation is reproduced in the V-Track with two wavelengths of 6.4 mm and 8.9 mm. Based on the measured wheel-rail contact forces, track dynamic behaviors, and observations, the consistent development mechanisms of short pitch corrugation are identified. It is found the longitudinal mode at 574 Hz and the induced longitudinal dynamic force are dominant for corrugation formation at the major wavelength of 6.4 mm. This paper provides the first experimental evidence indicating that rail longitudinal vibration mode and its induced longitudinal force contribute to the consistent development of short pitch corrugation.
KW - Rail vibration modes
KW - Short pitch corrugation
KW - V-Track test rig
KW - Wheel-rail dynamic contact forces
UR - http://www.scopus.com/inward/record.url?scp=85147264131&partnerID=8YFLogxK
U2 - 10.1016/j.triboint.2023.108293
DO - 10.1016/j.triboint.2023.108293
M3 - Article
AN - SCOPUS:85147264131
SN - 0301-679X
VL - 180
JO - Tribology International
JF - Tribology International
M1 - 108293
ER -