Obrabotka Metallov 2014 No. 1

ОБРАБОТКА МЕТАЛЛОВ № 1 (62) 2014 80 ОБОРУДОВАНИЕ OBRABOTKAMETALLOV (METAL WORKING • MATERIAL SCIENCE) N 1(62), January – March 2014, Pages 76–80 Improvement of the design of the steel-making electric-arc furnace ДСП-40-Н1 Golubev A.O. 1 , Engineer Krasnorutskiy D.A. 1 , Ph.D. (Engineering) Levin V.E. 1 , D.Sc. (Engineering), Associate Professor, e-mail: levin@craft.nstu.ru Sapov S.N. 2 , Chief Project Designer 1 Novosibirsk State Technical University, 20 Prospect K. Marksa, Novosibirsk, 630073, Russian Federation 2 Siberian electrothermal equipment plant JSC “Sibelektroterm”, 51 Petukhova st., Novosibirsk, 630088, Russian Federation Received 15 October 2013 Revised 23 January 2014 Accepted 28 January 2014 Abstract Stress calculationof themain structural elements of the steel-making electric-arc furnaceДСП-40-Н1 is considered. Static deformation of spatial design of the furnace is modeled using the finite element method in the ANSYS program pack. To reduce the computation effort a model of massive construction is recruited from the plates (shell finite elements are used). Stress calculation of the furnace structural members most subjected to load is conducted. It is revealed that in the original version of the construction there are stresses that are several times higher than the yield stress of the material, prescribed in the GOST for sheet metal that makes up the construction. On the basis of the distribution of stresses in the finite element model several options to strengthen the construction were worked out and the most appropriate variant, that provided the required safety and ease of constructive implementation were selected. The construction of the proposed reinforcements successfully completed in-plant test limit loads. This will ensure further safe operation of the furnace. Keywords: Stress calculation, finite-element model, steel-making electric-arc furnace, reinforcement of construction, safety factor, allowable stresses. References 1. Sojfer V.M., Kuznecov L.N. Dugovye pechi v stalelitejnom cehe [Arc furnaces in steel-casting foundry]. Moscow, Metallurgija Publ., 1989. 176 p. 2. Anur’ev V.I. Spravochnik konstruktora-mashinostroitelja, tom 1 [Reference Design - Mechanical Engineer]. Moscow, Mashinostroenie Publ, 2001. Vol.1, 902 p. 3. Feodos’ev V.I. Soprotivlenie materialov: uchebnik [Textbook “Strength of materials”]. Moscow, Nauka Publ., 1986. 512 p. 4. Grebenkin M.F. Raschet metallurgicheskih mashin i mehanizmov [Calculation of metallurgical machinery]. Kiev, Vysha Shkola, 1988. 448 p. 5. Tolokonnikov L.S. Raschet i konstruirovanie mehanizmov jelektricheskih pechej [Calculation and design of mechanisms of electric furnaces]. Moscow– Leningrad, Gosjenergoizdat Publ., 1961. 240 p. 6. Avdonin A.S. Prikladnye metody rascheta obolochek i tonkostennyh konstrukcij [Applied methods of analysis of shells and thin-walled structures]. Moscow, Mashinostroenie Publ., 1969. 402 p. 7. Moaveni S. Finite Element Analysis Theory and Application with ANSYS (3rd edition). Prentice Hall, 2008. 868 p. 8. Basov K.A. ANSYS: spravochnik pol’zovatelja [ANSYS: User’s Guide]. Moscow, DMK Press, 2005. 640 p.