Analysis of vibration and temperature on the axle box bearing of a high-speed train

Wang, Zhiwei; Cheng, Yao; Allen, Paul; Yin, Zhonghui; Zou, Dong; Zhang, Weihua

doi:10.1080/00423114.2019.1645340

Cited by 40 publications

(16 citation statements)

References 25 publications

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“…The high-speed vehicle vibration environment imposes an additional force on the bearing, which accelerates the vibration of bearings. 16 Wang Zhiwei [17][18][19] studied the effect of high-speed vehicle vibration environment on axle bearing dynamics. However, the researches of thermal characteristics of bearings considering the vehicle vibration environment of high-speed train have not been found until now.…”

Section: Ta Harris Calculated the Frictionmentioning

confidence: 99%

“…In the analysis step, the whole model is given an initial temperature field of 14 C. The friction heat generated on the bearing raceway conducts heat conduction within the inner ring and outer ring, and is transferred to the lubricant by the bearing in the form of heat convection, and then is transferred to the other parts of the bearing by the lubricant. The convection BCs for the bearing were acquired from the results of equations (11) to (18). The natural heat convection coefficient between the outer surface of the bearing outer ring and the air is 6:3 Â 10 À3 mw=mm 2 Á C. The rest of surface of outer ring exchange heat with the lubricant by heat convection, and the heat convection coefficient is 1 Â 10 À1 =mm 2 Á C. The rotating inner ring and ball exchange heat with lubricant in the form of heat h v3 ¼ 2:3 Â 10 À5 ðT À T a Þ 0:25 , Natural heat convection, when the air is still convection, and the heat convection coefficients are 1:5 Â 10 À1 mw=mm 2 Á C and 3:2Â 10 À1 mw=mm 2 Á C.…”

Section: A ¼ 2ad ð8þmentioning

confidence: 99%

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Effect of track irregularities of high-speed railways on the thermal characteristics of the traction motor bearing

Wang

Song

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part F:

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The operating temperature plays a key role in the service reliability of ball bearings used in the traction motor of high-speed trains. Studies on the heat generation and temperature distributions of the bearing under the vehicle vibration environment are critical for designing the high-speed train traction motor bearing and to monitor its operation. In this paper, an SKF friction torque model that considers the inlet shear heating reduction and kinematic replenishment/starvation reduction was used to calculate the power loss of the bearing operating in a high-speed train. A thermal analysis model of the bearing, which takes into account the vehicle vibration due to track irregularities, was developed to study the thermal characteristics of the bearing operating in a high-speed train. Experiments were conducted on a service high-speed train (i.e. CRH380B) to validate the proposed bearing thermal analysis model. The thermal characteristics of the bearing and the influence of key factors on the operating temperature of the bearing under vehicle vibration due to track irregularities were studied with the proposed bearing thermal analysis model. The results show that the thermal failure of the bearing subassemblies most likely occurs at the balls region owing to the highest temperature in that region, compared to the inner and outer raceway of the bearing. The method of applying grease with appropriate kinematic viscosity should be adopted to reduce the power loss of bearing while meeting the lubrication requirement. The vehicle vibration due to track irregularities significantly influences the thermal characteristics of high-speed train motor bearings, which cannot be ignored in the thermal analysis of bearings operating in a high-speed train.

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Section: Ta Harris Calculated the Frictionmentioning

confidence: 99%

Section: A ¼ 2ad ð8þmentioning

confidence: 99%

Effect of track irregularities of high-speed railways on the thermal characteristics of the traction motor bearing

Wang

Song

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part F:

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“…18,19 Xu et al 20,21 also studied the vibrations of the gear transmission system cause by the faults. Wang et al 22,23 introduced a comprehensive three-dimensional vehicle-track-coupled dynamics model considering the traction drive system and axle bearings. Although some studies investigated the vibrations of high-speed train system including the axle bearings, they did not consider the manufacturing errors, such as the roundness and waviness errors, in the axle-bearing elements.…”

Section: Introductionmentioning

confidence: 99%

Vibration analysis of the axle bearings considering the combined errors for a high-speed train

Liu

2020

Proceedings of the Institution of Mechanical Engineers, Part K:

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Axle bearings are critical elements of high-speed trains. Although the quality and precision of axle bearings have been significantly improved, the manufacturing errors, such as the roundness and waviness errors, cannot be eliminated during their manufacturing processes. The axle bearings with the roundness and waviness errors have great influences on vibration performances of the high-speed trains. To obtain an in-depth understanding of the vibrations caused by the axle bearing with the combined errors considering both the roundness and waviness errors. This work conducts an improved analytical model for a high-speed train considering the axle bearings with the combined errors, which cannot be formulated by the previous train model considering single roundness or waviness errors. The combined errors are defined to include both the roundness and waviness errors. A new multiple cosine function is presented to model the combined errors. The time-depended force excitations produced by the combined errors are also considered in the dynamic model. A track irregularities model is utilized to formulate the road spectrum displacement excitations from the rail and roadbed. The influences of the error amplitude and order on the vibrations of high-speed train are analyzed. The results for the single roundness error model, single waviness error model, and combined errors model are compared to represent the superiority of proposed model. It depicts that this work can provide a more reasonable analytical method for understanding the vibrations of high-speed train considering the axle bearings with the combined manufacturing errors compared to the reported single error models.

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“…Recently, Chen [ 29 ] investigated the dynamic performance of a locomotive in the traction/braking process via a vertical locomotive-track coupled dynamics model. Furthermore, ouang [1] studied the effects of gear transmission systems on the vibration of vehicle systems, whereas Wang et al [30][31][32] investigated the dynamic interactions of the axle box bearing in the vehicle-track coupled system. These studies indicate that the coupling effects between the transmission system and the vehicle-track system are intense and cannot be neglected.…”

Section: Introductionmentioning

confidence: 99%

Dynamic characteristics of a high-speed train gearbox in the vehicle–track coupled system excited by wheel defects

Wang

Allen

Mei

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part F:

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To analyse and simulate the dynamic responses of the gearbox in a vehicle–track system, a three-dimensional vehicle–track coupled dynamics model for high-speed trains has been developed in this study with a comprehensive consideration of the transmission system. Using this dynamics model, the coupling effects between the gearbox housing and its connected components were analysed. Based on the dynamic results, the dynamic stress field of the gearbox housing can be obtained using the finite element methods. The model outputs were successfully validated through comparisons with field test data. Following model validation, the dynamic stress and its distribution throughout the gearbox housing were further investigated under different excitations, including track irregularities, wheel polygonal wear and flatness. The results demonstrate a significant increase in the stress levels of the oil level window aperture and the bottom face of the housing, which coincides with the location of cracks that are formed in the gearbox housing during frequent vehicle operation. While a specific case has been studied here, the proposed dynamics model can be applied to related dynamic assessments, such as vibration or suspension parameter analyses, as well as to stress analyses of any rail vehicle transmission system to guide the maintenance and design.

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Analysis of vibration and temperature on the axle box bearing of a high-speed train

Cited by 40 publications

References 25 publications

Effect of track irregularities of high-speed railways on the thermal characteristics of the traction motor bearing

Effect of track irregularities of high-speed railways on the thermal characteristics of the traction motor bearing

Vibration analysis of the axle bearings considering the combined errors for a high-speed train

Dynamic characteristics of a high-speed train gearbox in the vehicle–track coupled system excited by wheel defects

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