Large-amplitude standing-wave fields in standing-wave tube with abrupt cross section

2021 ◽  
Vol 179 ◽  
pp. 108091
Author(s):  
Qi Min ◽  
Jiapei Zhu ◽  
Wanquan He ◽  
Quanbiao Wang ◽  
Shuping Ge ◽  
...  
Keyword(s):  
Standing Wave ◽  
Cross Section ◽  
Large Amplitude ◽  
Wave Tube ◽  
Wave Fields ◽  
Standing Wave Tube

scholarly journals Experimental investigation on large amplitude standing wave induced in closed tubes with varying cross section

2004 ◽  
Vol 25 (2) ◽  
pp. 153-158
Author(s):  
Md. Anwar Hossain ◽  
Masaaki Kawahashi ◽  
Tomoyoshi Nagakita ◽  
Hiroyuki Hirahara
Keyword(s):  
Experimental Investigation ◽  
Standing Wave ◽  
Cross Section ◽  
Large Amplitude ◽  
Wave Induced

A New Method to Measure the Absorption Coefficient of the Automotive Driving Room Based on the Sound Pressure Delaying

2011 ◽  
Vol 415-417 ◽  
pp. 1350-1354
Author(s):  
Cong Yun Zhu ◽  
Jian Ru Shi ◽  
Shu Feng Yang
Keyword(s):  
Absorption Coefficient ◽  
Standing Wave ◽  
Sound Pressure ◽  
Measurement Methods ◽  
The Other ◽  
New Method ◽  
Wave Tube ◽  
Absorption Function ◽  
Equal Distance ◽  
Standing Wave Tube

Absorption coefficient is an important parameter of the absorption function of the absorption material. Traditional measurement methods of absorption coefficient are standing wave tube and reverberation which have some shortcomings. In this paper, phase of the sound pressure measured by two equal distance microphones placed in the front of the absorption material is delayed in order to attain the absorption coefficient. At the last, an experiment for one absorption material is carried out, the experiment results compare with the results of the other methods above mentioned that denotes that the theory is correct and practicable.

Compressible flow of liquid in a standing wave tube

2005 ◽  
Vol 536 ◽  
pp. 321-345 ◽  
Author(s):  
YOUNGSHIK SHIN ◽  
JAEWON CHUNG ◽  
NICK KLADIAS ◽  
ELIAS PANIDES ◽  
GERALD A. DOMOTO ◽  
...  
Keyword(s):  
Compressible Flow ◽  
Standing Wave ◽  
Wave Tube ◽  
Standing Wave Tube

Sound Absorption Properties of Polyester Fibers Needle-Punched Nonwoven Fabrics

2011 ◽  
Vol 332-334 ◽  
pp. 1300-1303
Author(s):  
Ke Tian Guan ◽  
Xu Pin Zhuang ◽  
Xiao Ning Jiao ◽  
Men Qin Li ◽  
Hong Jun Li ◽  
...  
Keyword(s):  
Surface Structure ◽  
Standing Wave ◽  
Sound Absorption ◽  
Fiber Diameter ◽  
Absorption Property ◽  
Wave Tube ◽  
Absorption Properties ◽  
Nonwoven Fabrics ◽  
Polyester Fibers ◽  
Standing Wave Tube

Polyester fiber needle-punched nonwovens with different structures were manufactured and their sound absorption properties were examined using the standing wave tube method. The results show that the sound absorption property of the nonwovens depends on their thickness, needling intensity, fiber diameter and surface structure.

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