Journal of the Korean Crystal Growth and Crystal Technology (한국결정성장학회지)

The Korea Association of Crystal Growth (한국결정성장학회)
권호 표지
DOI QR코드

DOI QR Code

FEM simulation on dust-collecting performance of tonpilz transducer using finite element method

FEM 시뮬레이션을 이용한 tonpilz 트랜스듀서의 먼지 응집 거동

  • Seo, Jin-Won (Icheon Branch, Korea Institute of Ceramic Engineering and Technology) ;
  • Choi, Kyoon (Icheon Branch, Korea Institute of Ceramic Engineering and Technology) ;
  • Lee, Ho-Yong (R & D Center, Ceracomp Co., Ltd.)
  • Received : 2016.11.04
  • Accepted : 2016.11.18
  • Published : 2016.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

Dust-collecting behavior of tonpilz transducer was simulated with finite-element-method (FEM) software. In order to optimize the performance of tonpilz transducer, the shape factors including the thickness of head mass, the diameter of tail mass and the depth of bolt were analyzed as variables. As a vibrating energy source, the piezoelectric materials was also tested with PZT-4 and two kinds of piezoelectric single crystals. The output power of the transducer was maximized with the shape factors and then the behavior of the dust-collection was demonstrated with the multi-physics software, COMSOL.

Tonpilz 트랜스듀서를 이용한 미세먼지의 포집 거동을 살펴보기 위하여 유한요소법(FEM) 시뮬레이션을 이용하여 미세먼지의 응집 거동을 모사하였다. 원판형 head mass의 두께와 tail mass의 직경, 그리고 고정 볼트의 깊이를 트랜스듀서의 형상 변수로 고려하였다. 도넛형 압전체의 소재로는 기존의 PZT-4 소재와 서로 다른 특성의 두 가지 압전 단결정에 대하여 그 출력에 미치는 형상 변수의 최적화를 구현하였고 이를 통하여 얻은 트랜스듀서를 이용하였을 때 나타나는 미세먼지의 응집 거동을 다중 물리해석 S/W인 COMSOL을 이용하여 모사하였다.

Keywords

References

  1. B. Bergmans, M. Dormann, F. Idczak, S. Petitjean, D. Steyls and B. Vanderheyden, "Advanced technique to reduce emissions of fine particulate matter using ultrasounds", Sus. Chem. 154 (2011) 61.
  2. D. Zhou, A. Luo, J. Jiang, H. Chen, M. Lu and M. Fang, "Experimental study on improving the efficiency of dust removers by using acoustic agglomeration as pretreatment", Powder Tech. 289 (2016) 52. https://doi.org/10.1016/j.powtec.2015.11.009
  3. A. van Wijhe, "Acoustic coagulation of aerosols", M. Sc. Thesis (Delft University of Technology, Netherlands, 2013).
  4. K. Cepni, "A Methodology for Designing Tonpilz-type Transducers", M. Sc. Thesis (Middle East Technical University, Turkey, 2011) p. 13.
  5. Q. Yao and L. Bjorno, "Broadband Tonpilz Underwater Acoustic Transducers Based on Multimode Optimization", IEEE Trans. Ultrason. Ferroelect. Freq. Contr. 44 (1997) 1060. https://doi.org/10.1109/58.655631
  6. S. Chhith and Y. Roh, "Wideband tonpilz transducer with a void head mass", Proc. Sym. Ultrason. Electro. 30 (2009) 361.
  7. J.L. Butler, J.R. Cipolla and W.D. Brown, "Radiating head flexure and its effect on transducer performance", J. Acoust. Soc. Am. 70 (1981) 500. https://doi.org/10.1121/1.386794
  8. J. Kim, I. Kim and Y. Roh, "Design and fabrication of multi-mode wideband tonpilz transducers", J. Acous. Soc. Kor. 32 (2013) 191. https://doi.org/10.7776/ASK.2013.32.3.191
  9. J.-W. Seo, K. Choi and H.-Y. Lee, "Optimization of head mass for tonpilz transducer using finite element method", J. Kor. Crystal Growth and Crystal Tech. 25 (2015) 140. https://doi.org/10.6111/JKCGCT.2015.25.4.140
  10. J.-W. Seo, K. Choi and H.-Y. Lee, "Effects of piezoelectric material on the performance of Tonpilz transducer using finite element method", J. Kor. Crystal Growth Crystal Tech. 26 (2016) 139. https://doi.org/10.6111/JKCGCT.2016.26.4.139
  11. S. Zhang, F. Li, X. Jiang, J. Kim, J. Luo and X. Geng, "Advantages and challenges of relaxor-PT ferroelectric crystals for electroacoustic transducers - A review", Prog. Mater. Sci. 68 (2015) 1. https://doi.org/10.1016/j.pmatsci.2014.10.002