Fatigue analysis of the gearbox housing in high-speed trains under wheel polygonization using a multibody dynamics algorithm

Wu, Hao; Wu, Pingbo; Li, Fansong; Shi, Huailong; Xu, Kai

doi:10.1016/j.engfailanal.2019.02.058

Cited by 64 publications

(24 citation statements)

References 18 publications

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“…The fatigue failure of high-speed EMU gearbox housings in China has also attracted large amounts of researchers to study this problem through numerical simulation. Wu et al [59] studied the fatigue damage of the gearbox housing of a high-speed train under wheel polygonisation through numerical simulation. However, they neglected the influence of the gear transmission system.…”

Section: Effects Of Wheel Polygonisation On Fatigue Reliability Of Vementioning

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 Fatigue Reliability Of Vementioning

confidence: 99%

Polygonisation of railway wheels: a critical review

et al. 2020

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“…In addition, vibration and noise reduction can be achieved by manipulating the dynamic characteristics of the housing with additional damping material (Wu et al, 2019;Hu et al, 2017;Weis et al, 2017). The results show that stiffness and mass are two factors that affect the actual attenuation of the locally resonant damping structural housing.…”

Section: Introductionmentioning

confidence: 99%

Vibroacoustic characteristics analysis of a planetary gear reducer considering the exterior housing structure

et al. 2021

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Abstract. Previous studies have attempted to identify weak links in the dynamic characteristics of the planetary gear reducer (PGR) exterior body structure (EBS). Through numerical simulation, these studies analyzed the mode and natural frequencies and the vibration types of each order of the EBS. However, these scholars have never focused on the main factors affecting the dynamic characteristics of the EBS of this subject. This study in the topic has analyzed the vibroacoustic characteristics of an EBS and optimized its design using numerical simulation. Herein, the contribution of the vibration transfer path from the excitation points on the exterior body to the machine foot is emphatically revealed, and the influences of the main structural parameters on the transfer characteristics are discussed. An optimal EBS for a PGR with lower acoustic vibrations is designed in detail, and a composite EBS with damping vibration attenuation and acoustic absorption is proposed. The radiation acoustic characteristics without acoustic protection and damping materials are analyzed. These research results are implemented in order to realize the dynamic characteristics, transmission, and radiation acoustic characteristics as objects of optimization, and the structural design parameters of the PGR exterior body are deeply optimized using dynamic modification and sensitivity analysis. This topic focuses on the vibroacoustic coupling of EBS in stationary fluid and average flow field. Based on the analysis method of theoretical modeling and numerical calculation, the EBS dynamic response and vibroacoustic characteristics under the action of frontal excitation external acoustic flow field are studied, which will be beneficial to explore the comprehensive optimization design of PGR dynamic and vibroacoustic properties.

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“…In addition, vibration and noise reduction can be achieved by manipulating the dynamic characteristics of the exterior body with additional damping material [12][13][14]. The results show that stiffness and mass are two factors that affect the actual attenuation of the locally resonant damping structural exterior body.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation analysis of a PGR exterior body structure considering vibroacoustic characteristics

Ji¹,

Wang²,

Wang³

et al. 2021

J. vibroeng.

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Previous studies have attempted to identify weak links in the dynamic characteristics of the planetary gear reducer (PGR) exterior body structure (EBS). Through numerical simulation, these studies analyzed the modals and natural frequencies and the vibration types of each order of the EBS. However, these scholars have never focused on the main factors affecting the dynamic characteristics of the EBS of this subject. This study in the topic has analyzed the vibroacoustic characteristics of an EBS and optimized its design using numerical simulation. Herein, the contribution of the vibration transfer path from the excitation points on the exterior body to the machine foot is emphatically revealed, and the influences of the main structural parameters on the transfer characteristics are discussed. An optimal EBS for a PGR with lower acoustic vibrations is designed in detail, and a composite EBS with damping vibration attenuation and acoustic absorption is proposed. The radiation acoustic characteristics without acoustic protection and damping materials are analyzed. These research results are implemented in order to realize the dynamic characteristics, transmission, and radiation acoustic characteristics as objects of optimization, and the structural design parameters of the PGR exterior body are deeply optimized using dynamic modification and sensitivity analysis. This topic focuses on the vibroacoustic coupling of EBS in stationary fluid and average flow field, based on the analysis method of theoretical modeling and numerical calculation, the EBS dynamic response and vibroacoustic characteristics under the action of frontal excitation external acoustic flow field are studied, which will be beneficial to explore the comprehensive optimization design of GPR dynamic and vibroacoustic properties.

show abstract

Fatigue analysis of the gearbox housing in high-speed trains under wheel polygonization using a multibody dynamics algorithm

Cited by 64 publications

References 18 publications

Polygonisation of railway wheels: a critical review

Polygonisation of railway wheels: a critical review

Vibroacoustic characteristics analysis of a planetary gear reducer considering the exterior housing structure

Numerical simulation analysis of a PGR exterior body structure considering vibroacoustic characteristics

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