Notice: Undefined index: linkPowrot in C:\wwwroot\wwwroot\publikacje\publikacje.php on line 1275
Publikacje
Pomoc (F2)
[46684] Artykuł:

Acoustic conductance of a thick-walled anisotropic spherical shell submerged in liquid

Czasopismo: Aviation   Tom: 18, Zeszyt: 1, Strony: 52-55
ISSN:  1648-7788
Opublikowano: 2014
Liczba arkuszy wydawniczych:  0.50
 
  Autorzy / Redaktorzy / Twórcy
Imię i nazwisko Wydział Katedra Procent
udziału
Liczba
punktów
Rafał Chatys orcid logoWMiBMKatedra Technik Komputerowych i Uzbrojenia**505.00  
Valery Polyakov50.00  

Grupa MNiSW:  Recenzowana publikacja w języku innym niż polski w zagranicznym czasopiśmie spoza listy
Punkty MNiSW: 5


DOI LogoDOI    
Keywords:

sphere vibrations  isotropic material  frequency  Laplace method  complex solution  amplitude 



Abstract:

In order to provide knowledge on the intensity of sound transmission through the whole thickness of an isotropic spherical shell its vibrations are resolved on the radius. The vibrations are caused by harmonic sources located on the inner surface. The relative vibration speed of the outer surface, which emits radial waves into the environment, was found. The analytical solution considers the contact interaction between the outer surface of the shell and the surrounding liquid. The method, which directs the Laplace transformations, enables to obtain a general solution of the wave problem for vibrations on the surface. The solution of the natural vibration equation and the expression of relative amplitude at non-resonance and resonance vibrations of the sphere have been investigated with regard to radial and circumferential elastic modulus as well as the relative parameters of surface thickness.