Abstract
Since the level of vibration always depends on the natural frequencies of the system, it is important to know the modal parameters of such system to control failure and provide prevention actions. The demand for structurally reliable Printed Circuit Boards (PCB) has increased as more functions are required from electronic products along with less weight and smaller size. This imposes certain limitations and critical requirements. The applications of Experimental Modal Analysis (EMA), together with Finite Element Method (FEM) allow structural modification and optimization of the PCB. However, the purpose of this paper will only investigate the dynamic characteristics of CEM-1 Single-layer PCB using Experimental Modal Analysis (EMA) method. The dynamic characteristics are extracted for free-free end condition. In EMA, a model is developed using ME'Scope and modal testing is carried out using dbFA Suite 4.9 to obtain the experimental natural frequencies and mode shapes. The understanding on dynamic behavior of this structure provides valuable insight into the nature of the response and remarkable enhancement of its model, strength and vibration.
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