Mr. Hery Setiawan Profile

Hery Setiawan

at Konkuk Univ

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Proceedings Article | 5 April 2006 Paper

Design of elevator control surface actuated by LIPCA for small unmanned air vehicle

K. Yoon, Hery Setiawan, N. Goo

Proceedings Volume 6173, 61730D (2006) https://doi.org/10.1117/12.658210

KEYWORDS: Actuators, Aerodynamics, Aerospace engineering, Finite element methods, Prototyping, Control systems, Ceramics, Active vibration control, Composites, Vehicle control

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There have been persistent interests in high performance actuators suitable for the actuation of control surfaces of small aircraft and helicopter blades and for active vibration control of aerospace and submarine structures that need high specific force and displacement. What is really needed for active actuation is a large-displacement actuator with a compact source, i.e., much higher strain. A lot of effort has been made to develop compact actuators with large displacement at a high force. One of the representative actuator is LIPCA actuator that was introduced by Yoon et al. The LIPCA design offers the advantages to be applied as actuator for the small aerial vehicle comparing with any other actuators. The weight is one of the main concerns for aerospace field, and since LIPCA has lighter weight than any other piezo-actuator thus it is suitable as actuator for small aircraft control surface. In this paper, a conceptual design of LIPCA-actuated control surface is introduced. A finite element model was constructed and analyzed to predict the deflection angle of the control surface. The hinge moment that produced by the aerodynamic forces was calculated to determine the optimum position of the hinge point, which could produce the deflection as high as possible with reasonable hinge moment. To verify the prediction, a prototype of SUAV (small unmanned air vehicle) control surface was manufactured and tested both in static condition and in the wind tunnel. The prediction and test results showed a good agreement on the control surface deflection angle.

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