Natural frequency evaluation of a composite train carbody with length of 23m
Source abstract
Abstract
This paper explains numerical and experimental studies to evaluate the natural frequencies of a composite carbody of the Korean tilting train. The composite carbody with a length of 23 m was manufactured as a sandwich structure composed of 40-mm thick aluminum honeycomb core and 5-mm thick woven fabric carbon/epoxy face. From the finite element analysis, the composite carbody had a first bending natural frequency of 11.67 Hz and a first torsional natural frequency of 14.4 Hz. In order to verify the numerical results, the natural frequency measuring tests were performed. The measured first bending and torsional natural frequencies of the composite carbody were 10.25 and 11.0 Hz, respectively. Both of these results satisfied the design requirement.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Railway Engineering and Dynamics · Mechanical Engineering and Vibrations Research · Engineering Applied Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (11)
Show source-provided references
1. Wennhage P. Structural-acoustic optimization of sandwich panels. Royal Institute of Technology of Sweden; 2001. [Report 2001–05].
2. A study on the structural analysis and test of an electric carbody
3. Kim YS, Park SH, Beak NU, Kim DS, Development on the aluminum carbody for rubber-tired agt vehicle. In: Proceedings of the 2003 spring conference & annual meeting of Korean Society of Mechanical Engineering; 2003. p. 1118–23 [in Korean].
4. Yoon SC, Baik KS, Kwon ST, Kim MY, Structure analysis of body structure for electric multiple unit. In: Proceedings of the 2004 autumn conference & annual meeting of Korean Society of Precision Engineering; 2004. p. 1335–38 [in Korean].
5. Chung JD, Kim JK, Yoon SC, Pyun JS, A safety evaluation on the loading test of emu’s carbody having stainless and aluminum. In: Proceedings of the 2004 autumn conference & annual meeting of Korean Society of Precision Engineering; 2004. p. 1525–28 [in Korean].
6. Chung JD, Kim JK, Pyun JS, Kim WK, Hong YK, On study the safety assessment of accident electric multiple unit. In: Proceedings of the 2004 autumn conference & annual meeting of Korean Society of Precision Engineering; 2004. p. 1105–08 [in Korean].
7. A study the application of 3d sandwich composite structures to the double-deck light train carbody
8. Material characterization of a composite-foam sandwich for the front structure of a high speed train10.1016/S0263-8223(03)00028-X ↗
9. A multilevel approach to the optimization of a composite light rail vehicle bodyshell10.1016/S0263-8223(03)00193-4 ↗
10. Japanese Industrial Standard (JIS) E 7105. Test methods for static load of body structures of railway rolling stock; 1994.
11. Urban transit rolling stock performance and safety standard. Korean Ministry of Construction and Transportation; 2000.