Monitoring unit and method for detecting structural defects which can occur in an aircraft nacelle during use

摘要: The present disclosure relates to a monitoring assembly for detecting structural detects. includes composite sandwich structure with two distinct strata, calculation unit and plurality of sensors generating signals representative an amplitude or frequency vibrations produced in structure. Each sensor is formed by electromechanical microsystem including converter converting mechanical energy into electrical energy. In particular, the evaluates differences between current transfer function resulting from predetermined nominal function, compares each respective detection threshold, size position defect