Methods of Tests Conduction for Determining the Dynamic Elasticity Modulus, Dynamic Shear Modulus, and Loss Factor of Sound Insulation Materials

Number of journal: №6-2017
Autors:

Skripchenko D.S.
Ovsyannikov S.N.

DOI: https://doi.org/10.31659/0585-430X-2017-749-6-55-58

 

AbstractAbout AuthorsReferences
Methods of Tests Conduction for Determining the Dynamic Elasticity Modulus, Dynamic Shear Modulus, and Loss Factor of Sound Insulation Materials Methods for measuring dynamic characteristics of sound insulation materials – dynamic elasticity modulus, loss factor, shear modulus, Poisson’s ratio are described. The unit in which the dynamic impact is created by the electric-dynamic vibration generator and the static load is specified by pressure equipment is also described. In this case, the increase in the static load doesn’t cause the change in the dynamic impact on materials, in other words, the verified data of characteristics of sound-insulation material have been obtained. The peculiarity of this method is that the test is conducted with a horizontal position of the vibrator, in combination with the static support and a counterweight of 1.5 kg. The cre- ation of horizontal resonance shear vibrations makes it possible to determine the resonance frequency and differential of vibro-accelerations. This methodology makes it possible to conduct a series of tests; characteristics of some sound-insulation materials obtained at the equipment of the Tomsk State University of Architecture and Building are presented in this work.
D.S. SKRIPCHENKO, Magistrand (This email address is being protected from spambots. You need JavaScript enabled to view it.),
S.N. OVSYANNIKOV, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)

Tomsk State University of Architecture and Building (2, Solyanaya Square, Tomsk, 634003, Russian Federation)

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For citation: Skripchenko D.S., Ovsyannikov S.N. Methods of tests conduction for determining the dynamic elasticity modulus, dynamic shear modulus, and loss factor of sound insula- tion materials. Stroitel’nye Materialy [Construction Materials]. 2017. No. 6, pp. 55–58. DOI: https://doi.org/10.31659/0585-430X-2017-749-6-55-58. (In Russian)


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