Two-Domain Model of Volumetric Actuators

Abstract eng:
In the present work we propose a framework for modeling volumetric actuators – a special class of mechanical systems that can transform the parallel work of micro-actuators, distributed throughout an actuator’s volume, into a macroscopic force that scales with this volume. The proposed model takes into account the expected finite deformation of actuators and the coupling between the deformation and micro-actuation, which can strongly influence an actuator’s behavior. Finite element implementation details are presented, together with numerical examples and results.

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