Machines. Technologies. Materials.
Vol. 15 (2021), Issue 5, pg(s) 170-175

MACHINES

Influence of trolley motion in the dynamic behavior of semi-portal cranes

  • 1 Faculty of Mechanical Engineering, University of Prishtina “Hasan Prishtina”, Kosovo

Abstract

The paper presents dynamic analysis of the Semi-Portal Cranes for the case of Trolley motion travelling on Crane’s Girders. Semi-portal cranes are mainly mounted in the industrial facilities, and they consist of metallic structures with big dimensions and many mechanisms that carry heavy loads. We will analyze the influence of the Trolley motion in the dynamic behavior of Semi-Portal Crane while carrying maximum Load, in particular the influence of Load swinging and oscillations. The method of analysis is acquiring experimental measurements and comparing those results with the results gained through modeling of crane, and carrying simulations. Designing the Crane’s 3D model with software and motion simulations is the method applied in the paper to analyze dynamics and is important to explain the form and intensity of oscillations that can cause accidents, failures of parts, and other concerns about the safety. Analysis will be done for maximal and minimal speed of the Trolley. Conclusions from this paper will be useful about the design, dynamic response and safety of Semi-Portal Cranes. The analysis will be focused to find main kinematic and dynamic parameters influencing the crane dynamics, like forces, moments, speed (velocity), and Load swinging magnitude. The Crane is modeled based on the Data from standard manufacturer of Semi-Portal Cranes.

Keywords

References

  1. Crane manual: http://www.samogru.it/lang1/gantry_cranes.html
  2. SimWise 4D, Design Simulation, Technologies, https://www.design-simulation.com/SimWise4D/.
  3. Ilir Doçi, Shpetim Lajq i, Blerim Morina, Dynamic Analysis of Bridge Crane with one Main Girder during Telpher motion with Full Loading, MTM Journal, Vol. 12 (2018), Issue 8.
  4. Prof.asc. Doçi Ilir, Prof.asc. Lajqi Naser, Development of schematic design model of gantry crane for dynamic analysis and regulation of travel motion, MTM Journal, Issue 6/2017, p.268.
  5. Dresig, Hans, Shwingungen mechanischer Antriebssysteme, Modellbildung, berechnung, analyse, synthese, Springer Verlag, Berlin, 2001.
  6. Shapiro I. Howard, Shapiro P.Jay, Shapiro K. Lawrence, Cranes and Derricks, Mc Graw-Hill, New York, 2000.
  7. Ilir Doci, Beqir Hamidi, Jeton Zeka, Influence of load swinging on dynamic behavior of l-type portal cranes during forward travelling, MTM Journal, Issue 7/2015, p.69.
  8. Albert Isufi, Analiza dinamike e vinçit gjysmëportal me kapacitet bartës prej 6.3 ton, Punim Masteri, FIM, Prishtinë, 2018.
  9. William O’Connor, Hossein Habib i, Gantry crane control of a double-pendulum, distributed-mass load, using mechanical wave concepts, Mech. Sci., 4, 251–261, 2013.
  10. He, Cheng Zhong, and Xi Zhi Zhou, The Dynamic Analysis of Portal Crane with Self-Funnel under Unloading Process, Advanced Materials Research, vol. 740, Trans Tech Publications, Ltd., Aug. 2013, pp. 249–253.
  11. Vaughan J., Dynamics and control of mobile cranes, Georgia Institute of Technology, 2008.
  12. http://www.diniargeo.com/men/scales/weight-indicators.aspx
  13. http://www.azom.com/article.aspx?ArticleID=6022
  14. http://www.engineeringtoolbox.com/wire-rope-strength-d_1518.html
  15. Ilir Doçi, Siguria e Mjeteve Transportuese I (Safety of transportation Devices I), Book Chapter IX, Faculty of Mechanical Engineering, Prishtina, 2012.
  16. Musli Bajraktari, Mjetet Transportuese (Transportation Devices), Technical Faculty, Prishtina, 1986.

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