A Study on the Safety of Carbody for Railway Vehicles

Abstract:

To check the structural strength of the carbody of the newly–made gondola car, load was added to the underframe of the gondola car. The objective of this study is to evaluate whether or not the underframe of a gondola car under the maximal strength is safe. A gondola car for transporting railroad freight is usually designed and made of SM490YA steel and SS400 steel. The carbody of rolling stock is a principal structure that supports major equipment of the underframe and the freight. Therefore, the strength evaluation of this structure is important. Both structural analysis and loading test were performed under the loading condition. Prior to the evaluation of structural strength, finite element method software was used for structural analyses on stress distribution in a carbody of a gondola car. The strain gauges were attached on the carbody based on FEM results. A vertical load test, compressive load test, measurement of deflection amount and a natural frequency measurement test were conducted.

• Periodical: Key Engineering Materials (Volume 627)
• Pages: 409-412
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.627.409
• Online since: September 2014
• Authors: Sung Cheol Yoon*, Yeon Su Kim
• Keywords: Load Test, Natural Frequency, Stress, Stress Analysis

References

[1] S.C. Yoon, C.S. Jeon, and J. Kim: Key Engineering Materials, Vols. 353-358 (2007), p.272

[2] S.C. Yoon, J. Kim, C.S. Jeon, and K.Y. Choe: Key Engineering Materials, Vols. 417-418 (2010), pp.181-184

[3] Japanese Industrial Standards, Test methods for static load of body structure of railway rolling stock, E 7105, 1989.

[4] The Load Conditions in accordance with The Laws of Railroad Safety and The Guideline of Safety Standards for Railroad Vehicles, the Ministry of Land, Transportation and Marine Affairs, 2005.