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

The Korean Society of Mechanical Engineers (대한기계학회)
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Load Capability in a Bending Piezoelectric Composite Actuator with a Thin Sandwiched PZT Plate

굽힘 압전 복합재료 작동기의 하중 특성

  • 우성충 (건국대학교 인공근육연구센터) ;
  • 구남서 (건국대학교 신기술융합학과 지능형마이크로시스템)
  • Published : 2007.08.01
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Abstract

This article describes the load capability of bending piezoelectric actuators with a thin sandwiched PZT plate in association with the stored elastic energy induced by an increased dome height after a curing process. The stored elastic energy within the actuators is obtained via a flexural mechanical bending test. The load capability is evaluated indirectly in terms of an actuating displacement with a load of mass at simply supported and fixed-free boundary conditions. Additionally, a free displacement under no load of mass is measured for a comparison with an actuating displacement. The results reveal that an actuator with a top layer having a high elastic modulus and a low coefficient of thermal expansion exhibits a better performance than the rest of actuators in terms of free displacement as well as actuating displacement due to the formation of the large stored elastic energy within the actuator system. When actuators are excited at AC voltage, the actuating displacement is rather higher than the free displacement for the same actuating conditions. In addition, the effect of PZT ceramic softening results in a slight reduction in the resonance frequency of each actuator as the applied electric field increases. It is thus suggested that the static and dynamic actuating characteristics of bending piezoelectric composite actuators with a thin sandwiched PZT plate should be simultaneously considered in controlling the performance.

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References

  1. Akella, P., Chen, X., Cheng, W., Hughes, D. and Wen, J.T., 1994, 'Modelling and Control of Smart Structures with Bonded Piezoelectric Sensors and Actuators,' Smart Materials and Structures, Vol. 3, pp. 344-353 https://doi.org/10.1088/0964-1726/3/3/010
  2. Teymoori, M. and Ebrahim, A., 2005, 'Design and Simulation of A Novel Electrostatic Peristaltic Micromachined Pump for Drug Delivery Applications,' Sensors and Actuators A, Vol. 117, pp. 222-229 https://doi.org/10.1016/j.sna.2004.06.025
  3. Gex, D., Berthelot, Y. H. and Lynch, C. S., 2005, 'Low Frequency Bending Piezoelectric Actuator With Integrated Ultrasonic NDE Functionality,' NDT&E International, pp. 1-7
  4. Haertling, G.H., 1994, 'Rainbow Ceramics - A New Type of Ultra-High-Displacement Actuator,' Bull. Am. Ceram. Soc. Vol. 73. pp. 93-96
  5. Haertling, G.H., 1995, 'Method for Making Monolithic Prestressed Ceramic Devices,' US Patent No. 5471721
  6. Hellbaum, R., Bryant, R. and Fox, R., 1997, 'Thin Layer Composite Unimorph Ferroelectric Driver and Sensor,' US Patent No. 5632841
  7. Mossi, K., Mouhli, M., Smith, B.F., Mane, P.P. and Bryant, R.G., 2006, 'Shape Modeling and Aalidation of Stress-Biased Piezoelectric Actuators,' Smart Materials and Structures, Vol. 15, pp. 1785-1793 https://doi.org/10.1088/0964-1726/15/6/033
  8. Goo, N.S., Shin, S.J., Park, H.C. and Yoon K.J., 2001, 'Design/AnalysislManufacturing/ Performance Evaluation of Curved Unsymmetrical Piezoelectric Composite Actuator LIPCA,' Trans. of the KSME(A), Vol. 25, No. 10, pp. 1514-1519
  9. Kim, K.Y., Park, K.H., Park, H.C., Goo, N.S. and Yoon, KJ., 2005, 'Performance Evaluation Lightweight Piezo-Composite Actuator,' Sensors and Actuators A, Vol. 120, pp. 123-129 https://doi.org/10.1016/j.sna.2004.11.029
  10. Yoon, K.J., Park, K.H., Lee, S.K., Goo, N.S. and Park, H.C., 2004, 'Analytical Design Model for A Piezo-Composite Unimorph Actuator and Its Verification Using Lightweight Piezo-Composite Curved Actuators,' Smart Materials and Structures, Vol. 13, pp. 459-467 https://doi.org/10.1088/0964-1726/13/3/002
  11. Chung, S.W., Hwang, I.S. and Kim, S.J., 2006, 'Large-scale Actuating Performance Analysis of A Composite Curved Piezoelectric Actuator,' Smart Materials and Strucyures, Vol. 15, pp. 213-220 https://doi.org/10.1088/0964-1726/15/1/051
  12. Schwartz, R.W. and Narayanan, M., 2002, 'Development of High Stress-biased Actuators through The Incorporation of Mechanical Pre-loads,' Sensors and Actuators A, Vol. 101, pp. 3220-331 https://doi.org/10.1016/S0924-4247(02)00263-7
  13. Liang, Y., Kuga, Y. and Taya, M., 2005, 'Design of Membrane Actuator Based on Ferromagnetic Shape Memory Alloy Composite for Synthetic Jet Applications,' Sensors and Actuators A, Vol. 121, pp. 1-7 https://doi.org/10.1016/j.sna.2005.01.009
  14. Heo, S., Wiguna, T., Goo, N.S. and Park, H.C., 2007, 'Mechanical Design, Fabrication and Test of A Biomimetic Fish Robot Using LIPCA as An Rrtificial Muscle,' Trans. of the KSME(A), Vol. 31, No.1, pp. 36-42 https://doi.org/10.3795/KSME-A.2007.31.1.036
  15. Woo, S.C. and Goo, N.S., 2006, 'Analysis of a Plate-type Piezoelectric Composite Unimorph Actuator Considering Thermal Residual Deformation,' Trans. of the KSME(A), Vol. 30, No.4, pp. 409-419 https://doi.org/10.3795/KSME-A.2006.30.4.409
  16. Woo, S.C. and Goo, N.S., 2007, 'Prediction of Actuating Displacement in a Piezoelectric Composite Actuator with a Thin Sandwiched PZT Plate by a Finite Element Simulation,' Journal of Mechanical Science and Technology, Vol. 21, No. 3, pp. 455-464 https://doi.org/10.1007/BF02916307
  17. Woo, S.C. and Goo, N.S., 2006, 'Influence of Applied Electric Fields and Drive Frequencies on The Actuating Displacement of a Plate-type Piezoelectric Composite Actuator,' Trans. of the KSME(A), Vol. 30, No.5, pp. 576-584 https://doi.org/10.3795/KSME-A.2006.30.5.576
  18. Woo, S.C. and Goo, N.S., 2007, 'Analysis of The Bending Fracture Process for Piezoelectric Composite Actuators Using Dominant Frequency Bands by Acoustic Emission,' Composites Science and Technology, Vol. 67, pp. 1499-1508 https://doi.org/10.1016/j.compscitech.2006.07.023
  19. Woo, S.C. and Goo, N.S., 2007, 'Identification of Failure Mechanisms in a Smart Composite Actuator with a Thin Sandwiched PZT Plate by means of AE signal analysis,' Smart Materials and Structures, Vol. 16, pp. 1-11 https://doi.org/10.1088/0964-1726/16/4/061
  20. Woo, S.C. and Goo, N.S., 2007, 'Nondestructive Evaluation of Damage Modes in a Bending Piezoelectric Composite Actuator Based on Waveform and Frequency Analyses,' Trans. of the KSME(A), Vol. 31, No.8, in press https://doi.org/10.3795/KSME-A.2007.31.8.870
  21. Wang, Q.M. and Cross, L.E., 1998, 'Performance Analysis of Piezoelectric Cantilever Bending Actuator,' Feroelectrics, Vol. 215, pp. 187-213 https://doi.org/10.1080/00150199808229562
  22. Hazem, K. and Shaukat, M., 2000, 'Piezoelectric Induced Bending and Twisting of Laminated Composite Shallow Shells,' Smart Materials and Structures, Vol. 9, pp. 476-484 https://doi.org/10.1088/0964-1726/9/4/310
  23. Mulling, J, Usher, T., Dessent, B., Palmer, J, Franzon, P., Grant, E. and Kingon, A., 2001, 'Load Characterization of High Displacement Piezoelectric Actuators with Various End Conditions,' Sensors and Actuators A, Vol. 94, pp. 19-24 https://doi.org/10.1016/S0924-4247(01)00688-4
  24. Wang, Q.M., Zhang, B.X, Xu, B. and Liu, L.E., 1999, 'Nonlinear Piezoelectric Behavior of Ceramic Bending Mode Actuators under Strong Electric Fields,' Journal of Applied Physics, Vol. 86, pp. 3352-3360 https://doi.org/10.1063/1.371213