ABSTRAK Rizqy Agung
PUBLIC Alice Diniarti COVER Rizqy Agung
PUBLIC Alice Diniarti BAB 1 Rizqy Agung
PUBLIC Alice Diniarti BAB 2 Rizqy Agung
PUBLIC Alice Diniarti BAB 3 Rizqy Agung
PUBLIC Alice Diniarti BAB 4 Rizqy Agung
PUBLIC Alice Diniarti BAB 5 Rizqy Agung
PUBLIC Alice Diniarti PUSTAKA Rizqy Agung
PUBLIC Alice Diniarti
This thesis presents research on the structural dynamic characterization of a
microsatellite’s flexible panel equipped with a piezoelectric sensor. Various
dynamic excitations could exert a microsatellite’s flexible panel in space. In the
present work, a piezoelectric-based smart composite is implemented as a sensor to
sense the panel's response due to dynamic excitation. Experimental work was
conducted to evaluate the panel's response employing the piezoelectric sensor. In
the present case, the panel is modeled with a flexible plate. The dimensions of the
flexible plate are designed such that it can represent the natural modes of a
microsatellite panel. The disturbance exerted by the satellite's body motion is
defined as a base excitation employed via a shaker. A readily available piezoelectric
composite in the market is used. The experimental results pointed out that the
piezoelectric sensor is able to determine the natural frequencies of the plate's
fundamental bending modes. The current results have been well validated with
numerical results from an electromechanical finite element model with less than 7%
variances in the resonance frequency values. An exciting finding is depicted as the
excitation amplitude increases, and the sensor is shown to have a limitation at a
particular maximum voltage value. Nevertheless, the present work shows that a
piezoelectric composite in the market has the potential capability to use as a sensor
while considering the dynamic characteristics only without observing another
requirement, such as environmental conditions.