Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

Prediction of the Total Effective Moment (ME) Using Stroke Range in Lightweight Piezoelectric Composite Actuator(LIPCA)

경량압전 복합재료 작동기의 작동범위를 이용한 총유효 모멘트 (ME)의 예측

  • 윤광준 (건국대학교 항공우주공학과) ;
  • 김철웅 (고려대학교 공학기술연구소, 유앤아이㈜ 고려대부설연구소)
  • Published : 2006.02.01
Download PDF
⟨ Previous Next ⟩

Abstract

The fatigue behavior of LIPCA was so sensitive to the manufacturing condition, the environmental factors and the change of the test apparatus. Therefore, we could be considering not only the relationship between the stroke range $({\Delta}h)$ and actuating frequency but also the relationship between the stroke range $({\Delta}h)$ and the total effective moment $(M^E)$. Thus, this study proposed the calculation method of the applying $M^E$ when the $({\Delta}h)$ of LIPCA was increased from 1.mm to 20mm. To estimate the relationship between the total effective moment $(M^E)$ and the Bernoulli-Euler bending moment (M) was reviewed. And the residual stress distribution of LIPCA and THUNDER using the CLT was evaluated. In conclusions, converting the $({\Delta}h)$ of LIPCA to the radius of curvature (p) and calculating the $(M^E)$, it was found that the p by the $M^E$ changed similarly as the $({\Delta}h)$. It was found that the $M^E$ was 2.2 times as the M. While CFRP and PZT of LIPCA, which had the superior compressive characteristic, had the compressive residual stress, GFRP was subject to the tensile residual stress. Since this reversed configuration between the compressive residuals stress and the tensile one was made, the requirement of the stroke range $({\Delta}h)$ increase was satisfied.

Keywords

References

  1. 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,' Transactions of the KSME, A, Vol. 25, No. 10, pp. 1514-1519
  2. Park, K. H., Yoon, K, J. and Park, H. C., 2002, 'Development of Lightweight Piezo-composite Curved Actuator,' Journal of the KSAS, Vol. 30, No.5, pp. 94-100
  3. Kim, K. Y., Park, K. H., Yoon, K. J. and Park, H. C., 2003, 'Experimental Performance Evaluation and Comparison for Lightweight Piezo-Composite Actuator LIPCA,' Journal of the KSCM, Vol. 16, No.2, pp. 41-47
  4. Yoon, K. J., Park, K. H., Lee, S. K., Goo, N. S. and Park, H. C., 2004, 'Analytical Design Model for Piezo-Composite Unimorph Actuator and Its Verification Using Lightweight Piezo-Composite Curved Actuators,' Smart Materials and Structures, No. 13, pp. 459-467 https://doi.org/10.1088/0964-1726/13/3/002
  5. Yoon, K. J., Kim, K. Y., Goo, N. S., Park, H. C. and Haw, J. R., 2004, 'Actuator Performance Degradation of Piezo-Composite Actuator LIPCA Under Cyclic Actuation,' Key Engineering Materials, Vols. 261-263, pp. 1331-1336 https://doi.org/10.4028/www.scientific.net/KEM.261-263.1331
  6. Song, Sam-Hong and Kim, Cheol-Woong, 2001, 'The Delamination and Fatigue Crack Propagation Behavior in A15052/AFRP Laminates Under Cyclic Bending Moment,' Transactions of the KSME, A, Vol. 25, No.8, pp. 1277-1286
  7. Song, Sam-Hong and Kim, Cheol-Woong, 2003, 'Fatigue Crack and Delamination Behavior in the Composite Material Containing a Saw-cut and Circular Hole (I),' Transactions of the KSME, A, Vol. 27, No.1, pp. 58-65 https://doi.org/10.3795/KSME-A.2003.27.1.058
  8. Song, Sam-Hong and Kim, Cheol-Woong, 2003, 'The Analysis of Fatigue Behavior Using the Delamination Growth Rate ($dA_D$/da) and Fiber Bridging Effect Factor ($F_{BE}$) in A1/GFRP Laminates,' Transactions of the KSME, A, Vol. 27, No.2, pp. 317-326 https://doi.org/10.3795/KSME-A.2003.27.2.317
  9. Song, Sam-Hong and Kim, Cheol-Woong, 2003, 'Analysis of Delamination Behavior on the Stacking Sequence of Prosthetic Foot Keel in Glass Fiber Reinforced Laminates,' Transactions of the KSME, A, Vol. 27, No.4, pp. 623-631 https://doi.org/10.3795/KSME-A.2003.27.4.623
  10. Song, Sam-Hong and Kim, Cheol-Woong, 2004, 'Evaluation of Delamination Behavior in Hybrid Composite Using the Crack Length and the Delamination Width,' Transactions of the KSME, A, Vol. 28, No.1, pp. 55-62 https://doi.org/10.3795/KSME-A.2004.28.1.055
  11. Song, Sam-Hong and Kim, Cheol-Woong, 2004, 'Evaluation of Delamination for Fiber Reinforced Metal Laminates Using a Pseudo Crack Model,' Transactions of the KSME, A, Vol. 28, No.2, pp. 174-180 https://doi.org/10.3795/KSME-A.2004.28.2.174
  12. Song, Sam-Hong and Kim, Cheol-Woong, 2004, 'The Effect of Fiber Stacking Angle on the Relationship Between Fatigue Crack and Delamination Behavior in a Hybrid Composite Materials,' Transactions of the KSME, A, Vol. 28, No.3, pp. 281-288 https://doi.org/10.3795/KSME-A.2004.28.3.281
  13. Ronald F. Gibson, 1994, Principles of Composite Material Mechanics, McGraw Hill, pp. 190-269
  14. William D. Callister, Jr., 2003, Materials Science and Engineering an Introduction, John Wiley & Sons, Inc. pp. 217-220