传统号筒扬声器的讨论与优化  

Research and Optimization of Traditional Horn Loudspeaker

作　　者：王心华[1] 赵瑞丰 李健[2] 刘德全[2] WANG Xinhua;ZHAO Ruifeng;LI Jian;LIU Dequan(National Demonstration Center for Experimental Physics Education,Lanzhou University,Lanzhou 730000,China;Physical Science and Technology College,Lanzhou University,Lanzhou 730000,China)

机构地区：[1]兰州大学物理学国家级实验教学示范中心,甘肃兰州730000 [2]兰州大学物理科学与技术学院,甘肃兰州730000

出　　处：《大学物理实验》2020年第5期60-66,70,共8页Physical Experiment of College

基　　金：甘肃省高等教育教学成果培育项目;兰州大学示范课程建设项目(2019067)。

摘　　要：针对号筒形状对声强、声场分布等相关参数的影响,本文使用数值方法对不同形状,包括直线形、双曲型形、抛物线形、指数形和反比例形的最优形式进行计算,并设计了相关实验,得到了不同形状号筒的声强和声场分布的相关数据,给扬声器的设计提供了指导。In view of the influence of the shape of the horn on the related parameters such as sound intensity and sound field distribution,it uses numerical methods to optimize the different forms,including linear,hyperbolic,parabolic,exponential,inverse proportional and irregular shapes.The calculations and related experiments are designed,and the relevant data of the sound intensity and sound field distribution of the horns with different shapes are obtained to provide guidance for the design of the speakers.

关 键 词：号筒 扬声器 形状 优化 数值模拟 

分 类 号：O422[理学—声学]