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http://dx.doi.org/10.5050/KSNVE.2014.24.7.537

A Study on the Acoustic Modeling of Horn - Analysis and Design of Acoustic Horn -  

Sa, Jong Sung (Dept. of Automotive Engineering, Seoil University)
Park, Seok-Tae (Chungbuk Health & Science University)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.24, no.7, 2014 , pp. 537-548 More about this Journal
Abstract
In this paper, horn loudspeaker modeling was suggested, investigated and verified through comparison of test results and simulation ones based on input electrical impedance curves and acoustic sensitivity ones. First, Thiele Small parameters of horn driver were identified by using pseudo loudspeaker model concept and verified in case of both closed and open horndriver. Second, cone-shaped horn models were investigated and compared with input acoustic impedance curves for real horn(cone angle $6.6^{\circ}$) and short horn(cone angle $27.9^{\circ}$). It showed that Leach model for cone horn was well described to test results, which were electrical impedance and acoustic sensitivity, compared to Lemaitre one. To represent horn system model good approximation in wide frequency range, mass correction filter and lowpass filter were adopted and consequently showed good fitted to test results.
Keywords
Finite Element Method Magnetics; Horn Loudspeaker Modeling; Input Acoustic Impedance; Piezo Driven Disk; Pseudo Loudspeaker Model Concept;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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