7. Giant Sounding Plate

7. Giant Sounding Plate 巨型发声板

When a large, thin and flexible plate (e.g. plastic, metal or plexiglass) is bent, it may produce a loud and unusual howling sound. Explain and investigate this phenomenon.

当一个又大又薄又有弹性的板(如塑料、金属或有机玻璃)被弯曲时，它可能会发出一种响亮而不寻常的呼啸声。解释并研究这一现象。

Поющая пластина(2) - Proposal IYPT 2022 (youtube, ЭйНШтейн, 16.09.2020), https://youtu.be/yFvy0T_s904

S. Shankar, P. Bryde, and L. Mahadevan. Geometric control of topological dynamics in a singing saw. PNAS 119, 17, e2117241119 (2022)

R. Worland. The musical saw and the flexatone: An experimental study of confined vibrational modes in metal plates of variable curvature. J. Acoust. Soc. Am. 139, 2011-2011 (2016)

R. Cook. Vibration of a segment of a non-circular cylindrical shell: The “musical saw” problem. J. Sound Vibrat. 146, 339-341 (1991)

A. Tubis and R. E. Davis. The musical saw-operational features and simple dynamical theory. J. Acoust. Soc. Am. 71, S82-S83 (1982)

J. F. M. Scott and J. Woodhouse. Vibration of an elastic strip with varying curvature. Phil. Trans. R. Soc. A 339, 587-625 (1992)

R. Worland. The musical saw: Musical acoustics of trapped vibrational modes in a curved blade. J. Acoust. Soc. Am. 145, 1750-1750 (2019)

The unique mathematical physics of the singing saw (Amit Malewar, techexplorist.com, Apr 23, 2022), https://www.techexplorist.com/unique-mathematical-physics-singing-saw/

Musical Saw / Scie Musicale : Gounod, Ave Maria par Grégoire Blanc (youtube, Grégoire Blanc, 15.12.2014), https://youtu.be/i5KiodkF2m4

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Lord Rayleigh. The Theory of Sound. (London, Macmillan, 1877, Courier Dover Publications, 1945), http://books.google.com/books?

2023.10.10-2023.10.24 利用不同类型的板材，探究并选取合适的实验变量

2023.10.25-2023.11.09 使用Au2023，记录声音的波谱

2023.11.10-2023.11.24 对选取的变量进行研究，实验记录数据

2023.11.25-2023.12.09 考虑作用方式等因素对发声的影响

2023.12.10-2023.12.24 实验数据比对，修正理论模型

有什么问题可以在这里留言（不过好像用微信更快，但记得保存记录 (..•˘_˘•..)）