Influence of Wheel Eccentricity on Vertical Vibration of Suspended Monorail Vehicle: Experiment and Simulation

Lv, Kaikai; Wang, Kaiyun; Chen, Zhihui; Cai, Chengbiao; Guo, Lirong

doi:10.1155/2017/1367683

Cited by 12 publications

(7 citation statements)

References 20 publications

(19 reference statements)

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“…The excitation frequency of the wheel eccentricity is generally less than 10 Hz for an ordinary-speed vehicle, which can easily transmit to the car body and lead to a decrease in ride comfort. Lv et al [43] and Jiang et al [44] reported the influence of wheel eccentricity on the vertical vibration of suspended monorail vehicles and straddle monorail vehicles, respectively. The abnormal vibration of the two types of monorail vehicle was mainly caused by wheel eccentricity, although they were equipped with a solid tire rather than a steel wheel.…”

Section: Effects Of Wheel Polygonisation On Vibrationmentioning

confidence: 99%

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: Effects Of Wheel Polygonisation On Vibrationmentioning

confidence: 99%

Polygonisation of railway wheels: a critical review

et al. 2020

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“…e MI-7008D portable data acquisition analyzer and two three-axis accelerometers were used to measure the acceleration [24,28]. e parameters of the double-bogie vehicle before the optimization are given in Table 5.…”

Section: Experimental Verificationmentioning

confidence: 99%

Analysis and Optimization of Driving Attitude and Oscillation Characteristics of Suspension-Type Small Rail Vehicles

Liu

Yue

Lin

et al. 2020

Shock and Vibration

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Suspension-type small rail personal rapid transit systems are widely concerned due to their high efficiency and reliability. The increasing demands for ride comfort have put forward higher requirements for vehicle stationarity. In the study, with a single-bogie vehicle as the research object, a dynamic equation and a simulation model are firstly established to calculate the attitude angle and lateral velocity of the vehicle. Then, with the small amplitude and fast attenuation of the attitude angle and lateral velocity in a straight line and a bend as optimization objectives, the simulation model is optimized in terms of a series of variables, including the bogie with or without the supporting wheel, the supporting wheel tread, the driving wheel tread, the guide wheel tread, and the changes of the center of mass of the vehicle. Then, the problem of severe vehicle pitch with the double-bogie structure is solved. Finally, the simulation results and the optimization scheme are experimentally verified. The above optimization measures can significantly improve the driving stationarity of suspension-type small rail vehicles and enhance ride comfort.

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“…Wheel out-of-roundness (OOR) widely occurs in all kinds of railway vehicle, such as locomotive, [1][2][3][4][5] highspeed train, [6][7][8][9][10] metro train, [11][12][13][14][15] as well as monorail. 16,17 The wheel OOR shows the fluctuation of wheel radius along the circumference. The radial run-out is generally less than 1 mm and the wavelength of wheel OOR ranges from 100 mm to approximately one wheel circumference, which can cause severe wheel-rail dynamic interaction, especially for high-order wheel OOR.…”

Section: Introductionmentioning

confidence: 99%

Wheel–rail dynamic interaction caused by wheel out-of-roundness and its transmission between wheelsets

Tao

Liu

Xie

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part F:

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High-order and low-order wheel out-of-roundness (OOR) often occur on metro train wheels, which can intensify the wheel–rail dynamic interaction. A vehicle–track rigid-flexible coupled dynamics model is built through combining the dynamics software SIMPACK with the finite element software ANSYS, which is validated by field vibration measurement results of vehicle and track. Two adjacent vehicles with two two-axle bogies for each one are considered in the model. The wheel–rail interactions caused by high-order and low-order wheel OOR are investigated. The influence of the wheel–rail interaction caused by wheel OOR on one wheelset on wheel–rail interactions at other 7 wheelsets is explored. The results show that the wheel OOR can excite the first bending vibration of the wheelset and the P2 resonance at a normal operating speed, which can result in a considerable increase of the wheel–rail dynamic interaction and wheelset vibration. The wheel–rail dynamic interaction can be transmitted from the polygonised wheelset to another wheelset of the same bogie through the rail. However, the transmission is negligible from the path of the bogie. The amplitude of wheel OOR has no effect on the transmission ratio of wheel–rail dynamic interaction, but the vertical stiffness and damping coefficient of fasteners greatly influence the transmission. The two wheelsets on the same bogie should be re-profiled simultaneously if the radial run-out for one wheelset exceeds the limit and for the other does not. The effects of vibration transmission between wheelsets and track flexibility need to be taken into account in a model for predicting the development of wheel OOR.

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Influence of Wheel Eccentricity on Vertical Vibration of Suspended Monorail Vehicle: Experiment and Simulation

Cited by 12 publications

References 20 publications

Polygonisation of railway wheels: a critical review

Polygonisation of railway wheels: a critical review

Analysis and Optimization of Driving Attitude and Oscillation Characteristics of Suspension-Type Small Rail Vehicles

Wheel–rail dynamic interaction caused by wheel out-of-roundness and its transmission between wheelsets

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