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http://dx.doi.org/10.5050/KSNVE.2016.26.1.005

Vibration and Acoustic Analysis of Balanced Armature Micro Speaker  

Ko, Dong Shin (Dept. of Mechanical Engineering, Ajou Univ., Institute for Advanced Engineering)
Hur, Duk Jae (Dept. of System Engineering, Ajou Univ., Institute for Advanced Engineering)
Kwon, Sang Yup (Institute for Advanced Engineering)
Lee, Sung Su (R&BD Lab, Cresyn Co., Ltd.)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.26, no.1, 2016 , pp. 5-12 More about this Journal
Abstract
This paper describes the development process for vibration and acoustic characteristics of a balanced armature speaker. The design parameters were chosen in consideration of the influence of the bending stiffness of balanced armature which is the form of a cantilever structure in the speaker. For study of the performance of the speaker according to the design parameters, in the first step, we analyzed the characteristics of the velocity of the diaphragm to the electrical input. Next step, acoustic characteristics were analyzed by structural-acoustic coupled analysis. And the reliability of the analysis was verified by comparing the result of analysis with test results. Finally, we proposed a design method for implementing an enhanced balanced armature speakers through analysis method.
Keywords
Balanced Armature Speaker; Acoustic Characteristics; FEM; BEM; Speaker Diaphragm; Vibration Analysis; Acoustic Analysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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