RESEARCHES CONCERNING THE PREVENTION OF THE RESONANT FREQUENCY APPEARANCE BY USING REINFORCED PLASTICS
The paper presents the possibility of replacing plastics (PC and PA66), commonly used in automotive, by composite materials (PC + GF and PA66 + GF with different degrees of reinforcement) to reduce the risk of resonance frequency. Thereby, it was pursued for the substituted material to have similar or superior mechanical and thermal properties as the considered plastic. After simulation were identified natural frequencies for higher components values in the composite materials case, so they are higher than frequencies that could be encountered in the vehicle operation, the final purpose being the elimination of resonance risk. In order to perform the simulation, a housing mounted on a metal support frame was used (the parts were made in Creo 2.0 software) and the modal analysis was realized with Ansys software.
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