Theoretical and experimental evaluation of strength indices of bogie frame transoms for trailing cars of electric trains ER9M, ER9E
DOI:
https://doi.org/10.15802/stp2013/19759Keywords:
computational models, theoretical calculations, electric trains of series ER9M and ER9E, bogie, strength indices, trailing carsAbstract
Purpose. The article objectives are to identify the factors, which can contribute to the formation of cracks and to develop the measures on improving the strength indices of bogie frame transoms of trailing cars. Methodology. In order to achieve these objectives, in performing the work it was conducted the inspection of the technical condition of supporting structures for bogie frames of trailing cars; measured the Brіnell hardness numbers and estimated the endurance limits of transom material; tested on determination of the levels of efforts and stresses being created in the specified transoms under operation; developed the computational models for the theoretical determination of stress levels in the transom by simulating both normal and abnormal conditions of operating loading. Findings. Based on the analysis of results obtained: the situations with the highest stress levels were found; the measures on improving the strength indices of bogie frame transoms of trailing cars were developed. Originality. Based on the experimental and theoretical studies, the scientific monitoring of works to develop the measures on improving the strength indices of bogie frame transoms of trailing cars was carried out. Practical value. The developed measures on improving the strength indices were passed to professionals of Ukrzaliznytsia to introduce the proposed activities during the repairs of electric trains of specified series.
References
Kuzmich L.D. Vagony: Proyektirovaniye, ustroystvo i metody ispytaniy [Cars: Designing, device and test methods]. Moscow, Mashinostroeniye Publ., 1978. 376 p.
Gorobets V.L., Bondarev A.M., Skoblenko V.M. Analiz ekspluatatsionnoy narabotki nesushchikh konstruktsiy podvizhnogo sostava v zadachakh prodleniya srokov yego ekspluatatsii [Analysis of operational developments bearing structures of the rolling stock in the problems of extension of its operation]. Visnyk Dnipropetrovskoho natsionalnoho universytetu zaliznychnoho transportu imeni akademika V. Lazariana [Bulletin of Dniproperovsk National University of Railway Transport named after Academician V. Lazaryan], 2010, issue 35, pp. 10-16.
Khokhlov A.A. Dinamika passazhirskogo vagona i puti modernizatsii telezhki KVZ-TsNII [The dynamics of a passenger car and the ways of a bogie KVZ-TsNII modernization]. Moscow, MIIT Publ., 2001. 160 p.
Zenkevich O. Metod konechnykh elementov v tekhnike [Finite elements method in engineering]. Moscow, Mir Publ., 1975. 542 p.
Metodika otsenki ostatochnogo resursa nesushchikh konstruktsiy tyagovogo podvizhnogo sostava [Procedure of assessing the residual life of supporting structures of the traction rolling stock]. Kyiv, State Administration of Ukrainian Railway Transport, DIIT Publ., 1998. 51 p.
Normy rascheta i otsenki prochnosti nesushchikh elementov i dinamicheskikh kachestv ekipazhnoy chasti motorvagonnogo podvizhnogo sostava zheleznykh dorog MPS RF kolei 1520 mm [Rules for calculating and assessing the strength of supporting elements and dynamic qualities of the vehicle part of the motorized railcar rolling stock in Russian Federation, Ministry of Railways, wheel gauge 1,520 mm]. Moscow, VNIIZhT (RF) Publ., 1997. 147p.
Potemkin A.Tverdotelnoye modelirovaniye v sisteme KOMPAS – 3D [Solid modeling in the KOMPAS-3D package]. Saint Petersburg, BKhV Publ., 2004. 512 p.
Pulariya A.L., Serdyuk M.Ye. Primeneniye metodov kompyuternoy grafiki pri tekhnicheskoy diagnostike podvizhnogo sostava zheleznykh dorog [The application of computer graphics methods in technical diagnostics of railway rolling stock]. Visnyk Dnipropetrovskoho natsionalnoho universytetu zaliznychnoho transportu imeni akademika V. Lazariana [Bulletin of Dniproperovsk National University of Railway Transport named after Academician V. Lazaryan], 2010, issue 34, pp. 61-64.
Vershinskiy S.V. Raschet vagonov na prochnost [Strength calculation of rail cars]. Moscow, Mashinostroeniye Publ., 1971. 432 p.
Rukovodstvo po ustroystvu elektropoyezdov serii YeD9M, YeD9T, YeR9P [Manual on design of electric trains of series ED9M, ED9T, ER9P]. Moscow, Tsentr Kommercheskikh Razrabotok Publ., 2005. 128 p.
Carlson, В. Image interpolation and filtering. IEEE Transaction on ASSP, 2000, vol. 26, no. 4, pp. 257-261.
Li X., Orchard T. New edge directed interpolation. IEEE Transaction on Image Processing, 2001, vol. 10, no. 10, pp. 1521-1527.
Huber R., Gratzer J. Berechnen hochleistungsfähiger Schraubenfedern. Maschinenwelt und Electronik, 1964, no. 1, pp. 8-14.
Downloads
Published
How to Cite
Issue
Section
License
Copyright and Licensing
This journal provides open access to all of its content.
As such, copyright for articles published in this journal is retained by the authors, under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0). The CC BY license permits commercial and non-commercial reuse. Such access is associated with increased readership and increased citation of an author's work. For more information on this approach, see the Public Knowledge Project, the Directory of Open Access Journals, or the Budapest Open Access Initiative.
The CC BY 4.0 license allows users to copy, distribute and adapt the work in any way, provided that they properly point to the author. Therefore, the editorial board of the journal does not prevent from placing published materials in third-party repositories. In order to protect manuscripts from misappropriation by unscrupulous authors, reference should be made to the original version of the work.
