فصلنامه
نوع مقاله : مقاله پژوهشی
نویسنده
عضو هیئت علمی گروه مکانیک دانشگاه اراک
کلیدواژهها
عنوان مقاله English
نویسنده English
Phononic crystals are a kind of advanced materials that are created by alternating arrangement of one or more inclusion materials in a different host material. In this research, the effect of the dimensional parameters of inclusions on the band gap of tungsten-rubber phononic crystal plate has been investigated. The shape of the inclusion under investigation is a hollow cylinder and the lattice type is square. The analysis of the above structure was done based on the finite element method and with aid of Comsol software. The band structures of the phononic crystals have been obtained for 10 different dimensions of the inclusion (inner and outer diameter of the hollow cylinder). The results showed that to achieve the widest band gap, the outer and inner diameters of the cylinder should be 4.5 and 3.77 mm, respectively. In this case, the band gap can be obtained from the frequency of 281.5 to 1076.5 Hz, and the total width of the band gap is 795 Hz.
کلیدواژهها English
