The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A boundary element method (BEM) is presented to compute the bandgaps of two-dimensional (2D) solid–fluid phononic crystals which are composed of square or triangular lattices with arbitrarily shaped scatterers. The system may be either an array of solid scatterers embedded in the fluid matrix or an array of fluid scatterers embedded in a solid matrix. The boundary integral equations of both matrix...
The combined method of finite difference time domain (FDTD) and filter diagonalization is proposed to calculate the band structures of three-dimensional (3D) phononic crystals (PNCs). Numerical simulations for a 3D solid PNC system show that, with this combined method, relatively accurate calculation results of the band structures can be obtained when relatively few FDTD iterations are run.
In this paper, a finite element method based on the ABAQUS code and user subroutines is presented to evaluate the propagation of elastic waves in a phononic crystal slab with Archimedean-like tilings. Three systems composed of cylinders embedded in host materials in square, ladybug and bathroom lattices are considered. Complete and accurate band structures and transmission spectra are obtained to...
By viewing the quasi-periodicity as the deviation from the periodicity in a particular way, the quasi phononic crystal that has quasi-periodicity (Fibonacci sequence) in one direction and translational symmetry in the other direction is considered. The band structures are characterized by localization factors which are calculated by using the plane-wave-based transfer-matrix method. The results show...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.