Out-of-round railway wheels and polygonisation

S Iwnicki, JCO Nielsen, G Tao - Vehicle system dynamics, 2023‏ - Taylor & Francis
Out-of-roundness in railway wheels, in particular polygonal wear resulting in regular, multi-
lobed, out-of-round wheels, has become a significant problem in recent years. It is of …

The effect of wheel polygonal wear on temperature and vibration characteristics of a high-speed train braking system

L Zhang, Z Wang, Q Wang, J Mo, J Feng… - Mechanical Systems and …, 2023‏ - Elsevier
To study the effect of wheel polygonal wear (WPW) on temperature and vibration behaviours
of a high-speed train braking system, a rigid-flexible coupled vehicle system dynamics …

Dynamics modelling and vibration characteristics of urban rail vehicle axle-box bearings with the cage crack

Y Yu, L Guo, Z Chen, H Gao, Z Shi, G Zhang - Mechanical systems and …, 2023‏ - Elsevier
The cage crack changes the structural stiffness on different components, and therefore
affects its relative contact forces. Furthermore, the crack may cause the fault characteristics …

Study on dynamic characteristics of urban rail transit vehicle considering faulty axle-box bearings under variable speeds

L Guo, Y Yu, Z Chen, Y Liu, H Gao - Mechanical Systems and Signal …, 2024‏ - Elsevier
Axle-box bearing is the key component of urban rail transit vehicles, and its performance
status seriously affects the operation safety and stability of the train. Therefore, analyzing the …

Evolution analysis of wheel polygon wear considering the effect of interharmonics in electrical traction drive system

B Lu, Y Song, Z Liu, G Tao, X Wang, Q Zhang… - Mechanism and Machine …, 2024‏ - Elsevier
The formation and development of wheel polygon wear (WPW) present significant
challenges to the safety of railway vehicle operations. It is widely accepted that WPW occurs …

High-order wheel polygonal wear growth and mitigation: A parametric study

W Cai, X Wu, M Chi, HZ Huang - Mechanical Systems and Signal …, 2023‏ - Elsevier
China's high-speed train experienced severe wheel polygonal wear during the last decade,
the rail localized bending modes (RLBM) were suspected to be the major contributors …

A long-term tracking test of high-speed train with wheel polygonal wear

W Cai, M Chi, X Wu, J Sun, Y Zhou, Z Wen… - Vehicle System …, 2021‏ - Taylor & Francis
A long-term tracking test was performed on a newly designed high-speed train with the
nominal speed of 250 km/h. The wheel roughness and structural vibration were both …

Dynamic response of the axle-box bearing of a high-speed train excited by wheel flat

Y Luo, F Zhang, Z Wang, W Zhang… - Vehicle System …, 2024‏ - Taylor & Francis
Axle-box bearings are directly affected by wheel–rail impacts as fixedly connected to
wheelset. As an inevitable wheel-failure, wheel flat can cause severe wheel-rail impact …

Quantitative detection of locomotive wheel polygonization under non-stationary conditions by adaptive chirp mode decomposition

S Chen, K Wang, Z Zhou, Y Yang, Z Chen… - Railway Engineering …, 2022‏ - Springer
Wheel polygonal wear is a common and severe defect, which seriously threatens the
running safety and reliability of a railway vehicle especially a locomotive. Due to non …

Dynamic behaviours of rack vehicle-track system considering rack flexibility under gear-rack mesh impact

J Ning, Z Chen, Z Chen, J Yang… - International Journal of …, 2024‏ - Taylor & Francis
There are complex and large gradients for the rack vehicle running on the large mountain
slope line. Under such a circumstance, the driving gear-rack interactions will be more …