Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIII
Written by Nicoleta-Adaciza IONESCU, Daniela DOBRE, Claudiu-Sorin DRAGOMIR
The paper aims within a multidisciplinary approach (Chemistry, Engineering, Finite element analysis) to highlight the structural behaviour of a computer numerical control (CNC) resistance element from the vibrations point of view and following the deformations and efforts arising from static and dynamic loads. The modelling of the structural bearing member was done with the Finite Element Method, using three-dimensional elements of the Solid type, in specialized software, and considering different types of material (cast iron, reinforced concrete and reinforced concrete with the addition of polymer-coated clinker). Results concerning the variation of the dynamic characteristics (natural periods of vibration) and response spectra in accelerations, velocities and displacements in several points are presented. In conclusion, with regard to the considered materials, the use of concrete with intelligent addition to build the base of a CNC is a good solution. Using a smart reinforced concrete material embedded in the metal box gives greater rigidity to the structural system, the fundamental period having the lowest value, compared to the other two cases.
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