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Design Analysis/Manufacturing /Performance Evaluation of Curved Unsymmetrical Piezoelectric Composite Actuator LIPCA
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 Title & Authors
Design Analysis/Manufacturing /Performance Evaluation of Curved Unsymmetrical Piezoelectric Composite Actuator LIPCA
Gu, Nam-Seo; Sin, Seok-Jun; Park, Hun-Cheol; Yun, Gwang-Jun;
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 Abstract
This paper is concerned with design, manufacturing and performance test of LIPCA ( Lightweight Piezo- composite Curved Actuator) using a top carbon fiber composite layer with near -zero CTE(coefficient of thermal expansion), a middle PZT ceramic wafer and a bottom glass/epoxy layer with high CTE. The main point of this design is to replace the heavy metal layers of THUNDER by thigh tweight fiber reinforced plastic layers without losing capabilities to generate high force and large displacement. It is possible to save weight up to about 30% if we replace the metallic backing material by the light fiber composite layer. We can also have design flexibility by selecting the fiber direction and the size of prepreg layers. In addition to the lightweight advantage and design flexibility, the proposed device can be manufactured without adhesive layers when we use epoxy resin prepreg system. Glass/epoxy prepregs, a ceramic wafer with electrode surfaces, and a graphite/epoxy prepreg were simply stacked and cured at an elevated temperature (177 after following an autoclave bagging process. It was found that the manufactured composite laminate device had a sufficient curvature after detached from a flat mold. The analysis method of the cure curvature of LIPCA using the classical lamination theory is presented. The predicted curvatures are fairly in agreement with the experimental ones. In order to investigate the merits of LIPCA, a performance test of both LIPCA and THUNDE were conducted under the same boundary conditions. From the experimental actuation tests, it was observed that the developed actuator could generate larger actuation displacement than THUNDERT TM/
 Keywords
LIPCA;LIghtweight Piezo-composite Curved Actuator;Curved Unsymmetrical Laminate;Piezo-Electric Ceramic;
 Language
Korean
 Cited by
1.
곡면형 압전 복합재료 작동기 LIPCA 개발,박기훈;윤광준;박훈철;

한국항공우주학회지, 2002. vol.30. 5, pp.94-100 crossref(new window)
2.
경량 압전복합재료 곡면형 작동기(LIPCA)의 작동성능 평가를 위한 유한요소 해석,구남서;

대한기계학회논문집A, 2001. vol.25. 11, pp.1881-1886 crossref(new window)
3.
압전 복합재료 작동기 LIPCA에 대한 성능 비교실험 및 분석,김균열;박기훈;윤광준;박훈철;

Composites Research, 2003. vol.16. 2, pp.41-47
4.
잔류 열 변형을 고려한 평판형 압전 복합재료 유니모프 작동기의 해석,구남서;우성충;

대한기계학회논문집A, 2006. vol.30. 4, pp.409-419 crossref(new window)
5.
경량압전 복합재료 작동기의 작동범위를 이용한 총유효 모멘트 (ME)의 예측,윤광준;김철웅;

대한기계학회논문집A, 2006. vol.30. 2, pp.120-127 crossref(new window)
6.
CFRP 배향각에 따라 변화하는 PZTCA의 작동변위(Δ h)와 곡률반경(ρ)의 관계식 제안,홍정화;윤광준;김철웅;

대한기계학회논문집A, 2006. vol.30. 3, pp.318-327 crossref(new window)
7.
평판형 압전 복합재료 작동기의 작동 변위에 미치는 인가전압 및 구동주파수의 영향,구남서;우성충;

대한기계학회논문집A, 2006. vol.30. 5, pp.576-584 crossref(new window)
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