Welded joint fatigue reliability analysis on bogie frame of high-speed electric multiple unit

Li, Yong Hua; Qin, Qiang; Wang, Yuedong; Hu, Mingguang

doi:10.1007/s12204-017-1845-1

Cited by 6 publications

(4 citation statements)

References 4 publications

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“…In fact, the current high-speed railway ticket prices cannot fully reflect the market demand and competition, and the lack of a flexible price-adjusted mechanism makes it impossible for transportation enterprises to make timely adjustments according to market changes. This affects not only passenger flow, but also the realization of income [36]. Therefore, it is necessary to construct a pricing model that can reflect the market information and passenger service and also guarantee the operating efficiency of high-speed railroad transportation enterprises.…”

Section: The Effect Of the Mechanism Of Ticket Price On Financial Sus...mentioning

confidence: 99%

Research on High-Speed Railway Pricing and Financial Sustainability

Duan

2022

Sustainability

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With the steady increase of corporate system reform in the railway transportation industry, high-speed railways have accelerated their steps toward marketization, and the market competition they face has become increasingly fierce. In this context, enterprises need to make quick adjustments to new changes in order to seize the market share, obtain stable ticket income, and eventually, achieve financial sustainability while ensuring the healthy development of high-speed railways. Thus, it is particularly important to determine a reasonable ticket price. While considering supply and demand, market competition, and passenger utility, this study constructs a model of the passenger flow sharing rate and applies it to modeling the optimal ticket price for high-speed railways, taking the Beijing–Shanghai High-speed Railway as an example for calculating this model. Using the results calculated, this study analyzes the influence of the optimal ticket price on the financial sustainability of the enterprise through use of the evaluation system of financial sustainability established above. The results show that the existing price for a train ticket from of Beijing to Shanghai is not the optimal one, and there is still room for a price increase; the ticket price has an impact on financial sustainability by affecting corporate operating income and cash flow. The study provides a method for formulating the optimal ticket price for high-speed railway travel and enriches the research on the financial sustainability of high-speed railways.

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Section: The Effect Of the Mechanism Of Ticket Price On Financial Sus...mentioning

confidence: 99%

Research on High-Speed Railway Pricing and Financial Sustainability

Duan

2022

Sustainability

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“…Swing bars are the most crucial load‐carrying components to connect the car body and the levitation frames. It has been identified as the critical safety component, 13,15,16 and many failures of the swing bar were reported during the operation of the Shanghai high‐speed maglev trains 17 . In this paper, the swing bar is chosen as an example to demonstrate the critical mediating role of vehicle dynamics to integrate service conditions with structural strength and fatigue life.…”

Section: Introductionmentioning

confidence: 99%

“…However, these dynamic characteristics cannot be described accurately by the conventional static structural strength-based 11 or quasi-static fatigue-based 12,13 analysis methods in the case of highspeed vehicles. For such vehicles, the dynamic strength analysis and vibration fatigue assessment approach have not yet been integrated.…”

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confidence: 99%

“…Based on the maglev vehicle/viaduct coupled dynamics and numerical models, Gao et al 14 as the critical safety component, 13,15,16 and many failures of the swing bar were reported during the operation of the Shanghai high-speed maglev trains. 17 The sliding surface of the track girder is selected as the reference plane to establish the vehicle coordinate system.…”

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System dynamics in structural strength and vibration fatigue life assessment of the swing bar for high‐speed maglev train

Guo

et al. 2022

Int Journal of Mech Sys Dyn

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High-speed maglev trains are subjected to severe dynamic loads, thus posing a failure hazard. It is necessary to account for the vehicle dynamics to improve the structural strength and fatigue life assessment approach under harsh routes and super highspeed grades. As the most critical load-carrying part between the vehicle body and levitation frames, the swing bar was taken as an example to demonstrate the significance of vehicle dynamics to integrate classical structural strength and fatigue life with the service conditions. A multiphysics-coupled dynamic model of an alpha improvement scheme for an electromagnetic suspension maglev train capable of 600 km/h was established to investigate the complex dynamic loads and fatigue spectra. Using this model, the structural strength and fatigue life of the wrought swing

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Fatigue Reliability Analysis of a Turbine Blade Under CCF Load

Jiang

et al. 2020

J Fail. Anal. and Preven.

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Welded joint fatigue reliability analysis on bogie frame of high-speed electric multiple unit

Cited by 6 publications

References 4 publications

Research on High-Speed Railway Pricing and Financial Sustainability

Research on High-Speed Railway Pricing and Financial Sustainability

System dynamics in structural strength and vibration fatigue life assessment of the swing bar for high‐speed maglev train

Fatigue Reliability Analysis of a Turbine Blade Under CCF Load

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