Математическая модель вибрационного стола для снятия остаточных напряжений в сварных трубах
Journal Title: Математичне моделювання - Year 2017, Vol 1, Issue 2
Abstract
MATHEMATICAL MODEL OF A VIBRATION TABLE FOR REMOVING RESIDUAL STRESSES IN WELDED PIPES Krivoruchko A.M., Kadilnikov S.V. Abstract At present, in connection with the intensive development of computer technology, it became possible to use more universal methods, characterized by the simplicity of setting the initial information and fundamentally new conditions for the widespread use of vibration processing in the production and operation of general-purpose welded structures. Each of the known methods for reducing residual stresses has a more or less limited area of rational use, so there is a need for both improving existing and searching for fundamentally new methods of post-welding treatment of pipes in order to remove residual stresses, as well as hardening, stabilizing the geometry, and changing the structural state. Vibration treatment is proposed to reduce residual stresses in welded pipes. A mathematical and constructional model of the vibration table has been developed. A rational choice is made of the electric vibrator and the location of the electric motor, which makes it possible to obtain in the test sample uniform vibrations along the entire length of the working zone. When manufacturing the vibration table, elements of its vibration isolation are calculated - spring and rubber shock absorbers, a suitable variant of vibration supports was chosen, which makes it possible to increase the economy of the process without producing unnecessary expenses for expensive and complex foundation manufacture. References [27] Medvedev A.Yu., Bychkov VM, Tarasenko EE, Izmailova NF, Dubin A.I. Investigation of residual stresses in compounds obtained by linear friction welding. Bulletin of the USATU. 2012. Vol. 16. No. 7 (52). Pp. 59–62. [28] Paul Colegrove, ChukwugozieIkeagu, Adam Thistlethwaite,Stewart Williams, Tamas Nagy, WojciechSuder, Axel Steuwer, ThiloPirling. The welding process impact on residual stress and distortion. Science and Technology of Welding and Joining. 2009. Vol. 14(8). pp. 717–725. [29] Makhnenko VI, Velikoyvanenko EA, Shekera VM, Rozinka GF, Pivtorak NI. Residual welding stresses in the zone of annular welded joints of austenitic steel pipes. Automatic welding. 1998. № 11. P. 32–39. [30] Fedoseeva EM, Ignatov MN, Letyagin I.Yu., Kazymov K.P. Modern methods for identifying nonmetallic inclusions in welded joints of pipe steels. Heavy engineering. 2011. № 1. C. 45–47. [31] Fedoseeva EM, Olshanskaya TV, Ignatov MN Modeling of non-stationary processes in a welded pipeline connection. Heavy engineering. 2011. № 3, p. 31–37. [32] Zarubin PE, Baranovsky M.Yu., Tarasov V.A. Teklastructures - innovation in the creation of structures. Construction of unique buildings and structures. 2013. № 5. P. 1–8. [33] Ignatiev AG, Pyzin GP Determination of residual stresses in the welding of pipes from steel 45. Welding issues: a collection of scientific papers. Chelyabinsk: ChSTU. 1994. pp. 31–35. [8] Antonov, A.A. Steklov, O.I. Investigation of technological residual stresses in welded joints of main pipelines. Blank production in mechanical engineering. –2012. – No. 3. – C.13–19. [9] Lavrov BP, LA Golodin Investigation of the synchronization of mechanical vibrators in the basic schemes of two-mass screens. Enrichment of the ore .– 1977.– №3.– P.27–31. [10] Blekhman II Synchronization of dynamic systems. M .: Nauka, 1971.– 986 pp.
Authors and Affiliations
А. М. Криворучко, С. В. Кадильников
Keywords
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