Configuration of a shear web based actuation system

Franz Josef Natterer; Hans-Peter Monner

doi:10.1117/12.846350

12 April 2010 Configuration of a shear web based actuation system

Franz Josef Natterer, Hans-Peter Monner

Proceedings Volume 7643, Active and Passive Smart Structures and Integrated Systems 2010; 764329 (2010) https://doi.org/10.1117/12.846350
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2010, San Diego, California, United States

Abstract

Shape adaptive systems and structural configurations are necessary to fulfill the demands of a future unmanned aerial vehicle structure. Predominantly the present approaches are based on a passive load-bearing structure having smart actuation systems deforming the passive structural configuration elastically in the wanted shape. Therefore the actuation system can be based on discrete actuators, like electrically driven motors using gearing systems to transform the displacement into the structure or on smart material configurations placed on the load bearing passive structure, deforming the structure within the elastic region into the wanted shape. Using smart materials within load-bearing structures, elastic and static strength properties vary between passive and active structures. Matching these properties is a great challenge for future structural configurations. This is a successful approach for certain applications, e.g. smart rotor blade. The availability of two-dimensional smart actuator configurations with distinct actuation orientation allows the definition of a distinct load bearing active structure. Therefore the so called "web" of a spar-equivalent configuration was substituted by such a smart material actuator also known as macro fiber composite (MFC). Activating the web of the active cantilevered spar-configuration is resulting in a free end displacement. The main advantage lies in the fact that this approach will allow larger active displacements in comparison to a passive structural configuration with applied smart material actuators. Within the paper the process of developing the shear web based actuation system with configuration details will be illustrated and future steps will be proposed.

Citation Download Citation

Franz Josef Natterer and Hans-Peter Monner "Configuration of a shear web based actuation system", Proc. SPIE 7643, Active and Passive Smart Structures and Integrated Systems 2010, 764329 (12 April 2010); https://doi.org/10.1117/12.846350

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KEYWORDS

Actuators

Ceramics

Composites

Smart materials

Structured optical fibers

Microsoft Foundation Class Library

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