The alteration of contact force of pantograph- catenary (CFPC) at the dropper points (DP) is amplified remarkably when the speed of train is enhanced, and the collecting current character of pantograph- catenary took a turn for the worse. The chain-catenary/pantograph simulation model was established by adopting the finite element method (FEM) in the research to probe optimizing method of CFPC, which is analyzed that is obtained by calculation. First, the CFPC ridge-line on both sides of the DP is located by using the wavelet-ridge method to analyze singularity of the CFPC used by the Lipschitz exponent (LE). The conclusion is drawn that the CFPC reduction- rate on the right hand of the DP is larger than the increasing-rate on the left hand. Then, Sobol method is used to quantitatively analyze the relation between the CFPC singularity index and catenary-parameter. The results show that the singularity of CFPC can be reduced by increasing the contact wire tension and decreasing messenger wire tension, and the effect of catenary tension on the singularity at the DP is greater than the linear density of contact wire and messenger wire.


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    Title :

    Research on Parameter Sensitivity About Singular Characteristics of Contact Force of High-Speed Railway


    Additional title:

    Lect. Notes Electrical Eng.


    Contributors:
    Qin, Yong (editor) / Jia, Limin (editor) / Yang, Jianwei (editor) / Diao, Lijun (editor) / Yao, Dechen (editor) / An, Min (editor) / Zhang, Jian (author) / Niu, RuiKai (author) / Liu, Wenzheng (author) / han, Qing (author)

    Conference:

    International Conference on Electrical and Information Technologies for Rail Transportation ; 2023 ; Beijing, China October 19, 2023 - October 21, 2023



    Publication date :

    2024-02-03


    Size :

    9 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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