Design and construction of pre-stressed piezoelectric unimorph for trailing edge flap actuation

Lae-Hyong Kang; Jong-Won Lee; Jae-Hung Han

doi:10.1117/12.825055

20 October 2009 Design and construction of pre-stressed piezoelectric unimorph for trailing edge flap actuation

Lae-Hyong Kang, Jong-Won Lee, Jae-Hung Han

Proceedings Volume 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering; 749302 (2009) https://doi.org/10.1117/12.825055
Event: Second International Conference on Smart Materials and Nanotechnology in Engineering, 2009, Weihai, China

Abstract

This paper presents a trailing edge flap actuation mechanism using a novel pre-stressed piezoelectric unimorph, PUMPS (Piezoelectric Unimorph with Mechanically Pre-stressed Substrate). Experimental evaluation of actuation performance such as force-displacement characteristics of PUMPS actuators showed that the performance of PUMPS satisfied the requirements for trailing edge flap actuation. Subsequently, flap actuation mechanisms were designed and constructed with several slot types in the flaps, and stacked PUMPS actuators were applied to the flap actuation mechanisms. Experimental study of the test wing models with four flaps was accomplished, and the flap angle was achieved up to ±5.5° within 15Hz under maximum applicable voltage.

Citation Download Citation

Lae-Hyong Kang, Jong-Won Lee, and Jae-Hung Han "Design and construction of pre-stressed piezoelectric unimorph for trailing edge flap actuation", Proc. SPIE 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering, 749302 (20 October 2009); https://doi.org/10.1117/12.825055

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