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In this paper, a novel piezo inertial force generator optimized for high forces, high endurance and low frequency is discussed. The underlying innovative technology makes use of piezoceramic d33 multilayer monolithic actuators embedded into a GFRP host structure in a leaf-spring bending configuration. Dynamic amplification of the control forces is achieved by means of a near-resonance condition. The smart force generator actuation capability is completely embedded into its leaf-spring structure. With a 4 kg inertial mass, the force generator is capable of providing control forces of ± 800 N at frequencies around 26 Hz, where endurance tests show reliability for more than 1000 operational hours. Force generators are designed, and hardware prototypes manufactured and tested with respect to performance and endurance.
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Konstanzer et al. (2007) studied this question.
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