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Smart Structures Theory by Jayant Sirohi, Inderjit Chopra

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4

Beam Modeling with Induced-Strain Actuation

A one-dimensional beam with surface-bonded or embedded induced-strain actuators represents a basic and important element of an adaptive structure. Many structural systems, such as helicopter blades, airplane wings, turbo-machine blades, missiles, space structures, and many civil structures, are routinely represented as beams. For example, with induced-strain actuation, it may be possible to actively control aerodynamic shape for vibration suppression, stability augmentation, and noise reduction. Several beam theories have been developed to predict the flexural response of isotropic and anisotropic beams with surface-bonded and embedded induced-strain actuation, which range from simplified models ...

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