Optimizations of Simulation Processes Applied with Finite Element Method for Moving-Coil Loudspeaker

• Main Authors: LIN, KU-SHENG, 林谷昇
• Other Authors: LIU, YU-CHENG
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/64115991988431998550

碩士 === 逢甲大學 === 電聲碩士學位學程 === 105 === Finite element simulation applied in the electroacoustics field is not only a development tendency but also an important technology especially in the predicitions of product characteristics. However, how to obtain the accurate result is a vexed problem because that it is greatly dependent on the correct input parameters as well as the method of the parameteric adjustments, modular simulation processes, and even the concise simulation interface. The objective of this article is to present a correct and completed simulation process that is sutiable for the simulations of moving-coil loudspeaker with finite element software-COMSOL Multiphysic. On the other hand, we expected that most of the electroacoustics facilities existed in the MEALab can be properly play its functions and utilized well. Thus, most of parameters will be acquired by testing, for example, geometry profile from Klipple SCN system, TS parameters from Klippel and Audio Precesion system, magnetic flux density from FEMM and FINEMotor, etc.. Finaly, COMSOL Multiphysic executes a completely simulations and verifications with both frequency response and impedance curve. Results show that this simulation process is not only successfully built up but also quite suitable for the development of moving-coil loudspeaker after the verifications of five drivers. The frequency range and magnitude affectd by Young’s modulus of suspensions system will be clearly achieved and discussed. Finally, these complicated settings will be successfully simplified and integrated in one APP system.