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MODAL ANALYSIS OF LINEAR ACTUATOR

The question of checking the linear drive for resistance to resonance in the structure of the precision positioning mechanism for space applications - hexapod, when it is taken to a near-earth orbit is considered. Calculation of the values of the natural frequencies of the structure is carried out by the finite element method using CAD. The application of the modal analysis of structural elements is presented on the example of the linear actuator case for evaluating the resistance to resonance as one of the criteria for selecting a material. The comparative results of the modal analysis for the variants of the linear actuator housing are presented. Modal analysis of the linear drive is carried out, calculated frequencies and forms of natural oscillations are presented. The initial data for the harmonic analysis of the linear drive are obtained. The compliance of the developed linear drive with the specified requirements has been confirmed.