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논문 상세정보

잔류 열 변형을 고려한 평판형 압전 복합재료 유니모프 작동기의 해석

Analysis of a Plate-type Piezoelectric Composite Unimorph Actuator Considering Thermal Residual Deformation

Abstract

The actuating performance of plate-type unimorph piezoelectric composite actuators having various stacking sequences was evaluated by three dimensional finite element analysis on the basis of thermal analogy model. Thermal residual stress distribution at each layer in an asymmetrically laminated plate with PZT ceramic layer and thermally induced dome height were predicted using classical laminated plate theory. Thermal analogy model was applied to a bimorph cantilever beam and LIPCA-C2 actuator in order to confirm its validity. Finite element analysis considering thermal residual deformation showed that the bending behavior of piezoelectric composite actuator subjected to electric loads was significantly different according to the stacking sequence, thickness of constituent PZT ceramic and boundary conditions. In particular, the increase of thickness of PZT ceramic led to the increase of the bending stiffness of piezoelectric composite actuator but it did not always lead to the decrease of actuation distance according to the stacking sequences of piezoelectric composite actuator. Therefore, it is noted that the actuating performance of unimorph piezoelectric composite actuator is rather affected by bending stiffness than actuation distance.

참고문헌 (20)

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  7. Goo, N. S., Shin, S. J., Park, H. C. and Yoon, K. J., 2001, 'Design / Analysis / Manufacturing / Performance Evaluation of Curved Unsymmetrical Piezoelectric Composite Actuator LIPCA,' Trans. of the KSME(A), Vol. 25, No. 10, pp. 1514-1519 
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이 논문을 인용한 문헌 (5)

  1. Woo, Sung-Choong ; Goo, Nam-Seo 2006. "Analysis of the Fracture Behavior of Plate-type Piezoelectric Composite Actuators by Acoustic Emission Monitoring" 비파괴검사학회지 = Journal of the Korean Society for Nondestructive Testing, 26(4): 220~230 
  2. Goo Nam-Seo ; Woo Sung-Choong 2006. "Influence of Applied Electric Fields and Drive Frequencies on The Actuating Displacement of a Plate-type Piezoelectric Composite Actuator" 大韓機械學會論文集. Transactions of the Korean Society of Mechanical Engineers. A. A, 30(5): 576~584 
  3. Woo, Sung-Choong ; Goo, Nam-Seo 2007. "Nondestructive Evaluation of Damage Modes in a Bending Piezoelectric Composite Actuator Based on Waveform and Frequency Analyses" 大韓機械學會論文集. Transactions of the Korean Society of Mechanical Engineers. A. A, 31(8): 870~879 
  4. Woo, Sung-Choong ; Goo, Nam-Seo 2007. "Load Capability in a Bending Piezoelectric Composite Actuator with a Thin Sandwiched PZT Plate" 大韓機械學會論文集. Transactions of the Korean Society of Mechanical Engineers. A. A, 31(8): 880~888 
  5. Woo, Sung-Choong ; Goo, Nam-Seo 2008. "Damage Mechanisms of a Piezoelectric Actuator under Electric Fatigue Loading" 大韓機械學會論文集. Transactions of the Korean Society of Mechanical Engineers. A. A, 32(10): 856~865 

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