A study of formation of high order wheel polygonalization

Wu, Xingwen; Rakheja, Subhash; Cai, Wubin; Chi, Maoru; Ahmed, A. K. W.; Qu, Sheng

doi:10.1016/j.wear.2019.01.099

Cited by 71 publications

(34 citation statements)

References 38 publications

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“…Kalousek and Johnson [8] (2) P2 resonance Nielsen et al [5], Johansson and Andersson [74], Tao et al [14], Li et al [17], and Cai et al [75] (3) Frictional self-excited vibration of a wheelset-track system Chen et al [76,77], Zhao et al [78], and Wu et al [79] (4) Lower bending or torsional modes of the wheelset Morys [20], Jin et al [80], Yang et al [15], Tao et al [16,[81][82][83], Fröhling et al [84], and Spangenberg [85] (5) Bending vibration modes of the rail or track Johansson and Andersson [74], Wu et al [86], Cai et al [87], Dai et al [88], and Qu et al [89] (6) Excited resonance of the bogie Wu et al [90] and Guo et al [91] (7) Vibration of other components of the bogie Ma et al [92], Liu et al [93], and Fu et al [94] 3. Thermoelastic instability Nielsen et al [5] (Summary) and Vernersson [95,96] with three harmonics.…”

Section: Induced By Initial Wheel Defectsmentioning

confidence: 99%

“…Johansson and Andersson [74] simulated the wear evolution of wheel polygonisation and pointed out that the vertical track anti-resonance at 165 Hz was the main reason for the increase in wheel OOR with orders 14-20. Wu et al [86] and Cai et al [87] studied the formation process of high-order wheel polygonal wear of high-speed trains through simulation and concluded that the third bending vibration mode of the rail segment between two wheels of the same bogie was the primary contributor to the formation of high-order wheel polygonal wear. Dai et al [88] summarized the wheel polygonisation passing frequencies of different types of high-speed trains running on different types of ballastless tracks in China and found that the passing frequencies mainly depended on the sleeper span and wheelbase of the bogie.…”

Section: Bending Vibration Modes Of the Rail Or Trackmentioning

confidence: 99%

“…Later, most of the wheel polygonal wear simulation research has been based on the idea of Johansson and Anderson [74]. For example, Wu et al [86] and Cai et al [87] carried out polygonal wear simulation of high-speed railway wheels, and a simulation study on the low-order polygonal wear of metro train wheels was conducted by Cai et al [75] and Fu et al [94].…”

Section: Simulation Of the Wheel Polygonisation Evolutionmentioning

confidence: 99%

See 2 more Smart Citations

Polygonisation of railway wheels: a critical review

et al. 2020

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Polygonisation is a common nonuniform wear phenomenon occurring in railway vehicle wheels and has a severe impact on the vehicle–track system, ride comfort, and lineside residents. This paper first summarizes periodic defects of the wheels, including wheel polygonisation and wheel corrugation, occurring in railways worldwide. Thereafter, the effects of wheel polygonisation on the wheel–rail interaction, noise and vibration, and fatigue failure of the vehicle and track components are reviewed. Based on the different causes, the formation mechanisms of periodic wheel defects are classified into three categories: (1) initial defects of wheels, (2) natural vibration of the vehicle–track system, and (3) thermoelastic instability. In addition, the simulation methods of wheel polygonisation evolution and countermeasures to mitigate wheel polygonisation are presented. Emphasis is given to the characteristics, effects, causes, and solutions of wheel polygonisation in metro vehicles, locomotives, and high-speed trains in China. Finally, the guidance is provided on further understanding the formation mechanisms, monitoring technology, and maintenance criterion of wheel polygonisation.

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Section: Induced By Initial Wheel Defectsmentioning

confidence: 99%

Section: Bending Vibration Modes Of the Rail Or Trackmentioning

confidence: 99%

Section: Simulation Of the Wheel Polygonisation Evolutionmentioning

confidence: 99%

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Polygonisation of railway wheels: a critical review

et al. 2020

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“…Model. Among many material wear hypotheses [34], the Archard model is widely used in the wheel/rail wear simulation due to its good accuracy [25,35,36], in which the volume of worn material V wear is defined as follows:…”

Section: Wearmentioning

confidence: 99%

“…Furthermore, the predicted polygonal wear is compared when using the flexible wheelset and rigid wheelset, the wear depth deviation after 25 iteration steps are plotted in Figure 20, and the result shows that the dominating order of the polygonal wear would not change when considering wheelset flexibility. However, the wheelset flexible vibration would accelerate the formation of P2 resonance-induced polygonal wear, and this is because the flexible mode leads to the larger wheel/rail creepage [27,35].…”

Section: Wheelset Flexibilitymentioning

confidence: 99%

Experimental and Numerical Investigation into Formation of Metro Wheel Polygonalization

Cai

Chi

Tao

et al. 2019

Shock and Vibration

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We present a detailed investigation of the mechanism of metro wheel polygonal wear using on-site experiments and numerical simulation. More than 70% of metro wheels exhibit 6th–8th harmonic-order polygonal wear; the excitation frequency of the polygonal wear is located in the 50–70 Hz interval at an operating speed of 65–75 km/h. To determine the root cause of the polygonal wear, a dynamic train behavior test is conducted immediately after wheel reprofiling. The results suggest a natural mode resonance in the vehicle/track system, whose frequency coincides with the passing frequency of the 6th–8th order polygonalization. The magnitude of the resonance increases significantly when the vehicle runs on a monolithic concrete bed with DTVI2 fasteners. Thus, a corresponding coupled vehicle/track dynamic model is established and validated by comparing the calculated frequency response functions (FRFs) of tracks and dynamic responses of axlebox acceleration with the measured values. Using multiple timescales, the dynamic model and Archard wear model are integrated in a closed loop for long-term polygonal wear prediction. The simulated and measured evolution of polygonal wear show good agreement. By combining simulation results and experimental data, we suggest that the P2 resonance is the main contributor to the high amplitude of wheel/rail contact forces in the 50–70 Hz frequency range and the reason for subsequent polygonal wear. Parametric studies show that the dominant order decreases as vehicle speeds increase, representing a “frequency-constant” mechanism. The wheelset flexibility, especially the bending mode, would aggravate the wheel/rail creepage and further accelerate the formation of polygonal wear. Higher rail pad stiffness will increase P2 resonance frequency and shift the dominant wheel to higher polygonal orders.

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The Formation Mechanism of High-Order Polygonal Wear of Metro Train Wheels

Yang

Tao

et al. 2020

Lecture Notes in Mechanical Engineering

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A study of formation of high order wheel polygonalization

Cited by 71 publications

References 38 publications

Polygonisation of railway wheels: a critical review

Polygonisation of railway wheels: a critical review

Experimental and Numerical Investigation into Formation of Metro Wheel Polygonalization

The Formation Mechanism of High-Order Polygonal Wear of Metro Train Wheels

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