Scientific paper ID 1825 : 2019/3 NUMERICAL SOLUTION FOR THE DEFLECTION OF THE COLUMN-MOUNTED JIB CRANE STRUCTURENebojša Zdravković, Mile Savković, Goran Marković,Dragan Pršić, Goran Pavlović Column-mounted jib crane is one of the most frequently utilized crane types within the production facilities. Hence, there are a wide variety of designs, according to many different ments about lifting height, span, payload capacity, drive options, etc. One of the most considered design criteria is the deflection, where the crane structure is subjected to the full payload capacity at the maximum span. The paper presents the numerical solution for the deflection, obtained by the finite difference method (FDM) and MATLAB code, and its comparison with the analytical models proposed by several authors and the finite element analyses (FEA). The comparison between presented numerical solution and other approaches is made for the deflection of the jib tip. Obtained results are very close to some analytical models and especially to the FEA results. The advantages and shortcomings of the presented approach are given in the conclusion. монтажта колона стрелови кран отклонение (завъртане) метод на крайните разликиcolumn-mounted jib crane deflection finite difference method.Nebojša Zdravković Mile Savković Goran MarkovićDragan Pršić Goran PavlovićBIBLIOGRAPHY[1] Krastanov K., Kotzev N. On the causes of accidents with cranes, MTC, Vol.10, 3/2 ISSN 1312-38-23, pp. BG-5.17 – 5.21, 2012 [2] Petkov B., Process Control Systems for Railway Construction Machines, TEMPT, 2001 [3] Chaudhary S. A., Khan N.S., A review paper on structural analysis of cantilever beam of jib crane, International Journal of Engineering Research and General Science, (2015), Vol 3, No 3, p.p. 612-615. [4] Kolev P., Dynamic Analysis Methods, T. Kableshkov University of Transport, 2015 [5] Hadžikadunić F., Vukojević N., Huseinović S., An analysis of jib crane constructive solution in exploitation, 12th International Research/Expert Conference, ``Trends in the Development of Machinery and Associated Technology`` TMT 2008, Istanbul, Turkey, 26–30 August, (2008). [6] Yuan W., Kim B., Chen C., Lateral–torsional buckling of steel web tapered tee-section cantilevers, Journal of Constructional Steel Research, (2013), Vol 87, p.p. 31-37. [7] Andrade A., Providência P., Camotim D., Elastic lateral-torsional buckling of restrained web-tapered I-beams, Computers and Structures, (2010), Vol 88, p.p. 1179-1196. [8] Rajmane S.M., Jadhav A., Finite element analysis of jib crane, International journal of innovative research in technology , Volume 2, Issue 6, (2015), p.p. 404-407 [9] Gandhare K., Thute V., Design Optimization of Jib Crane Boom Using Evolutionary Algorithm. International Journal of Scientific Engineering and Research (IJSER), Volume 3, Issue 4, (2015), p.p. 5-8 [10] Yawale P., Khandare N., Effect of Length of Boom Support Leg on Free Standing Jib Crane, International Journal of Scientific Engineering and Research (IJSER), Volume 4, Issue 5, (2016), p.p. 19-23. [11] Vakani C.A., Jani S.S., Analysis and Optimization of 270° Jib Crane Deflection: A Review, IJSRD - International Journal for Scientific Research & Development, Volume 2, Issue 10, (2014), p.p. 471-473 [12] Kiranalli S.S., Patil N.U., Jib Crane Analysis using FEM. IJSRD - International Journal for Scientific Research & Development, Volume 3, Issue 4, (2015), p.p. 185-189 [13] Khetre S.N., Chaphalkar S. P., Meshram A., Modelling and stress analysis of column bracket for rotary jib crane, International Journal of Mechanical Engineering and Technology (IJMET), Volume 5, Issue 11, (2014), p.p. 130-139 [14] Gašić V., Zrnić N., Rakin M., Consideration of a moving mass effect on dynamic behaviour of a jib crane structure, Technical Gazette, Vol. 19, Issue 1, (2012), pp. 115-121. [15] Ma X., Wang H., Column Jib Crane Based on ANSYS Analysis of Static Stiffness and Improving Measures, Progress in Advanced Manufacturing Technologies, Volume 522, (2012), pp. 485-489 [16] Pavlović G., Gašić M., Savković M., Zdravković N., Marković G., Comparative analysis of the models for determination of deflection in the column-mounted jib crane structure, XXIII International Scientific Conference TRANSPORT 2017, Sofia, October 12-14, (2017). [17] Ivanov A., Modeling Dynamic Problems with MATLAB, ISBN 978-954-323-837-8, Avangard Prima Publishing House, Sofia, 2011, ISBN 978-954-323-837-8, 2011

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