Browse > Article
http://dx.doi.org/10.5573/ieie.2016.53.10.109

Vibration Pattern Prediction through The Analysis on the Break-up Mode and the Heat Transfer Relationship of Slim Speaker Diaphragm  

Kim, Hyun-Kab (Department of Electrical and Computer Engineering, University of Seoul)
Kim, Hiesik (Department of Electrical and Computer Engineering, University of Seoul)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.53, no.10, 2016 , pp. 109-115 More about this Journal
Abstract
In this paper, In this paper, we use two methods to compare the slim speakers. That way, the diaphragm scan using laser and diaphragm photographed using a thermal imaging camera. Slim speaker has the structure of a flat plate type. Break-up mode by this characteristic is displayed in a larger size. Further, since the installation space is narrow, it has limited moving coil cooling. As a result, the break-up mode slim speakers, a significant impact on quality. In this study, try to connect the break-up mode of the diaphragm, the heat transfer mode of the diaphragm. Experiment for comparison, a two-step. The first step is to measure the divided vibration through the vibration plate scan. The second step measures the diaphragm photographed using a thermal imaging camera. Then, compare the results of both of the same frequency. Thus, comparing the heat transfer pattern and the pattern of break-up mode. Tend to be analysis of break-up mode from the pattern comparison, and document for the optimum design.
Keywords
Speaker; Vibration Pattern; Break-up Mode; Thermal Analysis;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Peter Larsen, "Geometrical Stiffness of Loud speaker Cones", Audio Engineering Society, 116th Convention, Convention Paper 6095, pp. 1, Berlin, Germany, May 2004.
2 Sei-Jin Oh, Theory and Design of Loudspeaker, SeokHakDang, pp. 102, 2011
3 Ki-Su Kang, "A Study on Thermal Strain Analysis of Composite Materials by ESPI", Dept. of Mechanical Design Engineering, Chosun University, pp. 5, 1999.
4 Wolfgang Klippel and Joachim Schlechter, "Measurement and Visualization of Loudspeaker Cone Vibration", Audio Engineering Society, 121st Convention, Convention Paper 6882. pp. 12, San Francisco, CA, USA, 2006
5 J. H. Chung, N. S. Goo, H. C. Park, K. J. Yoon, "A Study on thermal deformation behavior of laminates composed of different material layer", Proceedings of the Korean Society For Composite Materials Conferenc, pp. 54, 2000
6 Kyeong Min Kim, Seong Keol Kim, and Keun Park, "Investigation on Vibration Characteristics of Micro Speaker Diaphragms for Various Shape Designs", Journal of the Korean Society of Precision Engineering, v.30, no.8, pp. 791, 2013.