Optimized Simulation and Experimental Validation of a New Chamber Design for a Headphone
| Autor: | Jie-Ru Chen, 陳潔儒 |
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| Rok vydání: | 2016 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 104 Due to 3C product development to the high quality trend, headphones and other accessories are becoming more and more diversified from the past up to the Hi-End stage on its innovations. For the sake of market demand and the rapid development of Hi-Fi design, the analysis, simulation and measurement of headphones becomesimportant. Unlike the open and closed-back chambers design of the headphone, this thesis presents the theoretical simulation and optimization method through the special porous cavity structure for the type of new headphones(NH). The main content of this thesis is divided into two parts. The first part is the measurement of the NH design and its development which combined with CAD-based and rapid prototyping technology for the structure design. Moreover, the standardized measurement process is established with three parts which comprising: (a) Surface reconstruction model for construct the three-dimensional image of the human ear, (b)Headphone chamber model design and produce, (c) The standardized architecture for headphone mock up. The second part is the improvement of complex porous chamber theoretical design based on the theoretical equivalent circuit method and particle swarm optimization algorithms. As the result, the experiment and simulation analysis in this thesis can enhance the simulation accuracy of its frequency response compared to the measurement. The presented purpose will widely applicable to design the other types of headphones to meet the diverse and rapidly changing of consumer market,and saving development time and cost. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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