为什么气球弹出时会发出巨大的噪音

IF 0.8 4区工程技术 Q4 ACOUSTICS

International Journal of Acoustics and Vibration Pub Date : 2019-12-31 DOI:10.20855/ijav.2019.24.41433

E. Ross, J. Panda, J. Ross, L. K. Kushner

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引用次数: 0

摘要

对各种气球形状的气球响度和压力特征进行了测量。响度和录音是在距离弹出的气球3.2米的地方进行的。气球有三种类型：圆形、长型和超长型（与制作气球动物的类型相同），充有三种气体，并膨胀成多种尺寸。数据表明，尽管充气时形状、直径或长度存在差异，但所有3种类型的乳胶气球都具有相似的峰值频率和声学特征。数据还显示了响度与气体比热和气球充气直径之比的相关性。这些数据并不支持气球爆裂噪音产生的一些常见假设。声音似乎是由气球表面和乳胶破裂边缘的振动产生的。这一解释与当前的声学测量和阴影图视频以及Pätynen等人的假设一致。4

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Why Balloons Make a Loud Noise When They Pop

Measurements of balloon loudness and pressure signatures are presented for a variety of balloon shapes. The loudness and recordings were made 3.2 meters from the popped balloons. The balloons were of 3 types: round, long, and extremely long (the same type that is used to make balloon animals), filled with 3 gases, and inflated to multiple sizes. The data indicates that all 3 types of latex balloons share similar peak frequencies and acoustic signatures in spite of differences in shape and diameter or length when inflated. The data also shows a correlation of loudness to the ratio of specific heats of the gas and inflated diameter of the balloons. The data does not support some of the common hypotheses of balloon popping noise generation. It appears that the sound is generated by the vibration of the balloon surface and the ruptured edge of the latex. This explanation is consistent with the current acoustic measurements and shadowgraph videos, and the hypothesis of Pätynen, et al.4

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来源期刊

International Journal of Acoustics and Vibration ACOUSTICS-ENGINEERING, MECHANICAL

CiteScore

1.60

自引率

10.00%

发文量

审稿时长

12 months

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