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Experimental Modal Analysis of High-Speed EMU Carbody Structure
2012Modal is the natural characteristic of structural vibration, each mode has a specific frequencies, damping and modal shape. Modal parameters reflect the dynamic properties of the structure. The dynamic characteristics of car-body structure play an important role to the stability and comfort of the High-speed EMU (Electric Multiple Unit).
Yanchuang Ding +3 more
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Mission reliability simulation of high-speed EMU service braking system
2009 8th International Conference on Reliability, Maintainability and Safety, 2009Logic reliability relation of the High-speed EMU service braking system was analyzed. The reliability diagram was set up. A general approach and the major steps were proposed to do reliability analysis of the High-speed EMU braking system. And the failure distribution of key components was confirmed through reliability test. The simulation result shows
Zuguo Cheng +3 more
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Electromagnetic Characteristics Analysis of High-Speed EMU with FEA Modeling
IEEE Transactions on Applied Superconductivity, 2016This paper presents analysis methods for improving the electromagnetic characteristics of a high-speed electrical multiple unit (EMU) train with a 1:1 finite-element analysis model. Both electromagnetic distribution diagrams and numerical field data have been analyzed.
Zhi H. Wu +6 more
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Safety Analysis for High Speed Bogie Technologies of CRH3 EMU
Advanced Materials Research, 2012The bogie technology of the 350km/h EMU train is one of the key parts for China high speed railways. Through analysis of the high speed bogy for CRH3 EMU train, the design conceptions and methodologies of the bogy structure and suspension systems are better understood. Technical procedures for the bogie design are carefully investigated, which includes
Shu Lin Liang, Ren Luo, Ping Bo Wu
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Strength and Modal Analysis of High Speed EMU Gearbox Housing
2019With the continuous increase of China’s high-speed railway and the improvement of passenger vehicle dynamics and static performance requirements, the gearbox housing of the core component of power transmission is facing a severe test. Based on theoretical mechanics and finite element method, this paper calculates the static strength and modal state of ...
Haijun Huang +3 more
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Optimization of high speed EMU suspension parameters for vibration reduction
Journal of Mechanical Science and Technology, 2013Various designs of high speed EMU (electric multiple units) operating at maximum speed of 400 km/h or above are under active development in many countries. Driving at such extreme high speed, the EMUs that are equipped with multiple power units and non articulated bogies normally experience severe level of vibration.
Seung-Guk Baek +5 more
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CR-Fuxing high-speed EMU series
Frontiers of Engineering Management, 2023Chunfang Lu, Bo Zhang, Hongwei Zhao
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Flexible vibration analysis for car body of high-speed EMU
Journal of Mechanical Science and Technology, 2016The resonance of the flexible vibration of car body, which has not been detected before on a passenger coach, occurred recently on a high-speed Electric multi units (EMU) when the train was running at 300 km/h on Beijing-Shanghai line. In this investigation, the force transmission from track to car body via suspensions is elaborated first with possibly
Huailong Shi, Pingbo Wu
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Reliability Distribution Law and Statistics Analysis for High-Speed EMU
Applied Mechanics and Materials, 2014The reliability design method is considered based on the EMU application in our country. It is verified that the vehicle reliability obeys the exponential distribution according to the statistical testing principles and practical data statistics of some high-speed EMU, in addition, the reliability after a period of time of operation, or to say, the ...
Zhi Guo Cui, Hao Dong
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Analysis on reliability model of high-speed EMU bogie system
2013 International Conference on Quality, Reliability, Risk, Maintenance, and Safety Engineering (QR2MSE), 2013In this paper, fault tree analysis method and Bayesian network are introduced briefly. To overcome the restriction that fault tree analysis assumes the condition of an event as two-state, according to the mapping relationship between fault tree and Bayesian network, an event in fault tree is transformed to a node in Bayesian network, which will be ...
Hengliang Wang +2 more
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