The ELI-NP Array of DEtectors (ELIADE) is one of the experimental setups being built at ELI-NP. The reaction chamber for the ELIADE array is, together with the CCD camera the goal of research team. The precision of the experiment make important the small deformation and the vibration of the equipment. To study this, a model using Finite Element Method is used. The device consists of elastic elements to a smaller or greater extent. Usually, if the velocities and the occurring loads are low then the rigid elements hypothesis can lead to an excellent model. But in the experiment that will be conduct in the laboratory with ELIADE, precision is so important that it require extremely small deformation of the device. For this a model that takes into account the elasticity of the body must be used in order to study the movement of the part of the device during the experiment.
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