Improved Method for Calculating the Gauge of Railway Vehicles Considering the Non-Linearity of Suspension Systems
An improved method for calculating the gauge of railway vehicles is proposed in this study, which can provide more reasonable results for vehicles with nonlinear springs in the suspension system. Typical mechanics models of nonlinear springs are built and then introduced into the calculation formulas described in the Chinese Gauge Standard CJJ 96-2018. The relative displacement equations for the primary and secondary suspensions are defined, based on the calculation formulas, and an iterative algorithm based on Taylor expansion is applied to solve these nonlinear equations. By solving the equations, the relative displacements of the control points of the suspension system are obtained and the parameters for gauge calculation are updated. The updated parameters are then used to calculate the transverse and vertical displacements of the car body, bogie, unsprung components, flange, and tread, and to determine the quantity of throw of the vehicle profile. Finally, a numerical example is given to verify the feasibility, accuracy, and applicability of the method, and the results are also compared with those calculated from European Standard EN 15273. The method is applicable to a wide range of railway vehicles with nonlinear suspension systems, giving more reasonable results compared with existing calculation methods.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
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Supplemental Notes:
- Chen Shuangxi https://orcid.org/0000-0001-7992-094X© National Academy of Sciences: Transportation Research Board 2023.
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Authors:
- Shuangxi, Chen
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0000-0001-7992-094X
- Publication Date: 2023-11
Language
- English
Media Info
- Media Type: Web
- Features: References;
- Pagination: pp 533-547
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Serial:
- Transportation Research Record: Journal of the Transportation Research Board
- Volume: 2677
- Issue Number: 11
- Publisher: Sage Publications, Incorporated
- ISSN: 0361-1981
- EISSN: 2169-4052
- Serial URL: http://journals.sagepub.com/home/trr
Subject/Index Terms
- TRT Terms: Calculation; Gage (Rails); Railroad transportation; Suspension systems; Train components
- Subject Areas: Planning and Forecasting; Railroads; Vehicles and Equipment;
Filing Info
- Accession Number: 01882612
- Record Type: Publication
- Files: TRIS, TRB, ATRI
- Created Date: May 23 2023 9:27AM