Design and technological optimization of overhead traveling cranes’ box girders
DOI:
https://doi.org/10.15587/2312-8372.2015.51821Keywords:
crane, box girder, welding, residual stress, structureAbstract
The residual stress-strain state of welded joints of cranes’ steel structures is understudied scientific and technical issue. Finite-element analysis of the post-weld residual stresses in longitudinal T-joints of overhead cranes’ box girders was applied to this study. Goldak’s moving heat source model based on double-ellipsoid heat flux distribution was used. Thermal and mechanical tasks were sequentially solved, wherein the phase transformation processes were taken into consideration. The effects of such factors as box girder geometry, welding speed, pre-heating technology on the residual stresses and phase distribution in longitudinal welds were further investigated.
The post-weld stress-strain state of the box girders’ T-joints was detailed. The recommendations to streamline the overhead cranes girders’ production technology intended to improve their quality and overall technological level were formulated. The necessity of taking into account the phase and structural transformations in the simulation is proved. The requirements for the finite-element modeling of longitudinal T-joints were established.
References
- Uhov, A. V., Dashchenko, A. F., Kolomiets, L. V. (1998). Raschet i proektirovanie metallokonstruktsii mobil'nyh mashin i mehanizmov. Book 3. Raschet metallicheskih konstruktsii mostovyh i konsol'nyh kranov. Odessa: Astroprint, 108.
- Srivastava, B., Prakash, J. (2010). A review on effect of arc welding parameters on mechanical behaviour of ferrous metals/alloys. International Journal of Engineering Science and Technology, Vol. 2, № 5, 1425–1432. doi:10.1.1.165.5291
- Juvinall, R. C., Marshek, K. M. (2006). Fundamentals of machine component design. New York: John Wiley & Sons, 929.
- Masubuchi, K. (1980). Analysis of welded structures: Residual stresses, distortion, and their consequences. Elsevier, 642.
- Nurguzhin, M. R., Katsaga, T. Ya., Danenova, G. T. (2002). Chislennoe modelirovanie vliianiia tehnologicheskih faktorov na prochnost' svarnyh metallokonstruktsii. Vychislitel'nye tehnologii i matematicheskie modeli v nauke, tehnike i obrazovanii. Alma-Ata, Kazahstan,18–20.
- Ponitaev, A. A. (2002). Razrabotka raschetnyh metodov opredeleniia napriazhenno-deformirovannogo sostoianiia kranovyh metallokonstruktsii s uchetom tehnologii izgotovleniia. Moscow, 247.
- Chernyshev, G. N., Popov, A. L., Kozintsev, V. M., Ponomarev, I. I. (1996). Ostatochnye napriazheniia v deformiruemyh tverdyh telah. Moscow: Nauka. Fizmatlit, 240.
- Teng, T.-L., Fung, C.-P., Chang, P.-H., Yang, W.-C. (2001, August). Analysis of residual stresses and distortions in T-joint fillet welds. International Journal of Pressure Vessels and Piping, Vol. 78, № 8, 523–538. doi:10.1016/s0308-0161(01)00074-6
- Leggatt, R. H. (2008). Residual stresses in welded structures. International Journal of Pressure Vessels and Piping, 3, 144–151.
- Goldak, J. A., Akhlaghi, M. (2006). Computational welding mechanics. Springer Science & Business Media, 325. doi:10.1007/b101137
- Gery, D., Long, H., Maropoulos, P. (2005, August). Effects of welding speed, energy input and heat source distribution on temperature variations in butt joint welding. Journal of Materials Processing Technology, Vol. 167, № 2-3, 393–401. doi:10.1016/j.jmatprotec.2005.06.018
- Lyaturinsky, V., Sidorenko, M. (2013). Modelirovanie poslesvarochnogo napriazhionno-deformirovannogo sostoianiia korobchatyh kranovyh balok s krivolineinymi shvami. Novi materialy i tekhnolohii v metalurhii ta mashynobuduvanni, 2, 130–138.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2016 Василь Олександрович Лятуринський, Михайло Володимирович Сидоренко
![Creative Commons License](http://i.creativecommons.org/l/by/4.0/88x31.png)
This work is licensed under a Creative Commons Attribution 4.0 International License.
The consolidation and conditions for the transfer of copyright (identification of authorship) is carried out in the License Agreement. In particular, the authors reserve the right to the authorship of their manuscript and transfer the first publication of this work to the journal under the terms of the Creative Commons CC BY license. At the same time, they have the right to conclude on their own additional agreements concerning the non-exclusive distribution of the work in the form in which it was published by this journal, but provided that the link to the first publication of the article in this journal is preserved.