1:10缩尺人工头研制及其在建筑声学缩尺模型测量中的应用

发布时间：2018-03-05 12:27

本文选题：缩尺模型　切入点：建筑声学　出处：《声学学报》2017年01期 　论文类型：期刊论文

【摘要】：采用三维激光扫描技术对01dB MK2B人工头进行扫描,建立了包含耳道的人工头数字模型,再利用3D打印技术按照1:10的缩尺比打印出缩尺人工头,并将1/8 in传声器嵌入缩尺人工头内。在消声室内分别测量了足尺和缩尺人工头的双耳脉冲响应,并计算了双耳时间差ITD、双耳声压级差ILD以及双耳互相关系数IACC,对比分析结果显示两者吻合很好。将研制的人工头应用于天津文化中心音乐厅1:10声学缩尺模型IACC参数测量,模型测量结果与现场测量结果一致。该方法制作的缩尺人工头可用于声学缩尺模型实验中厅堂空间感参数的测量并有望应用于可听化技术。
[Abstract]:In this paper, a 3D laser scanning technique is used to scan the 01 dB MK2B artificial head, and a digital model of the human head containing ear canal is established. The artificial head is printed by using 3D printing technology according to the 1:10 scale ratio. The 1/8 min microphone was embedded into the scale artificial head. The bimble pulse response of the full scale and the contraction scale artificial head was measured in the silencing chamber. Two ear time difference (ITD), binaural sound pressure differential (ILD) and the number of binaural interrelations (IACCs) are calculated. The results of comparison and analysis show that the two methods are in good agreement with each other. The developed human head is applied to the measurement of IACC parameters of the 1:10 acoustic scale model of Tianjin Cultural Center Concert Hall. The result of model measurement is consistent with that of field measurement. The artificial head made by this method can be used to measure the parameters of hall space sense in acoustic scale model experiment, and it is expected to be applied to audible technology.
【作者单位】：华南理工大学亚热带建筑科学国家重点实验室;
【基金】：亚热带建筑科学国家重点实验室自主研究课题项目(2015ZA01)
【分类号】：TU112.2

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