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We present an approach for creating a reliable variable stiffness suspension using prestretched electroactive polymer films. In comparison to other variable-stiffness devices, the design is compact, lightweight, consumes low energy, and can change its stiffness in approximately 10 ms. Attention to the main causes of failure increases the reliability of the device so that multiple layers can be combined...
Piezoelectric fiber composites are a new kind of smart materials appropriate for making actuators. In this paper, FEM was employed to study actuating properties of the composite numerically. Then the optimization was presented. Due to the advantage from the IDEs (Interdigitated Electrode), the composite output lager induced displacements and has anisotropic properties obviously. In addition, the application...
Piezoelectric fiber composites is one of the new type piezoelectric devices for actuators, since it has obvious anisotropy as well as high toughness that couldn't be gotten from normal piezoceramics. Piezoelectric fiber composites is denominated by piezoelectric fiber, polymer and interdigitated electrode layer. Through design processes, better mechanical and electrical characteristics than piezoceramic...
In this paper, we present a stretchable electrode array for studying cell behavior subjected to mechanical strain. The electrode array consists of four gold nail-head pins (250 mum tip diameter and 1.75 mm spacing) inserted into a polydimethylsiloxane (PDMS) platform (25.4times25.4 mm2). Fusible indium alloy (liquid at room temperature) filled microchannels are used to connect the electrodes to the...
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