Contribution to active noise control by new production concepts for textile-reinforced thermoplastic composites with material-embedded piezo-ceramic modules

摘要

The acoustic quality is becoming more important especially for high-performance and comfort applications. Here, textile-reinforced thermoplastic composites offer specific advantages by embedding new matrix-adapted piezo-ceramic actuators (TPM). A necessary precondition for an industrial use of such new material-embedded active noise control concepts are manufacturing technologies suitable for series production. This paper makes a contribution to this challenging topic by presenting new robust manufacturing processes for textile-reinforced thermoplastic composites with material-embedded TPM on the basis of hot pressing techniques in combination with preheating processes. Extensive experimental studies were carried out which clearly reveal the need to use an isostatic pressure distribution, matrix-adapted glass fiber sizes as well as matching matrix systems of TPM and composite in order to obtain a good quality of active thermoplastic composites. In order to validate the efficiency of this new noise control concept based on material-adapted manufacturing technologies numerical and experimental functionality tests have been designed.