
تعداد نشریات | 11 |
تعداد شمارهها | 222 |
تعداد مقالات | 2,225 |
تعداد مشاهده مقاله | 3,293,208 |
تعداد دریافت فایل اصل مقاله | 2,363,862 |
An efficient finite difference time domain algorithm for band structure calculations of Phononic crystal | ||
Journal of Computational & Applied Research in Mechanical Engineering (JCARME) | ||
مقاله 10، دوره 6، شماره 2 - شماره پیاپی 12، شهریور 2017، صفحه 93-101 اصل مقاله (626.35 K) | ||
نوع مقاله: Research Paper | ||
شناسه دیجیتال (DOI): 10.22061/jcarme.2017.601 | ||
نویسندگان | ||
M. Moradi؛ M. Bagheri Nouri* | ||
Department of Mechanical Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran | ||
تاریخ دریافت: 09 آبان 1394، تاریخ بازنگری: 09 اسفند 1394، تاریخ پذیرش: 18 اسفند 1394 | ||
چکیده | ||
In this paper, a new algorithm for studying elastic wave propagation in the phononic crystals is presented. At first, the displacement-based forms of elastic wave equations are derived and then the forms are discretized using finite difference method. So the new algorithm is called the displacement-based finite difference time domain (DBFDTD). Three numerical examples are computed with this method and the results are compared with experimental measurements and the conventional FDTD method. Also, the computational cost of the new approach is compared with the conventional FDTD method. The comparison showed that the calculation time of the DBFDTD method is 37.5 percent less than that of the FDTD method. | ||
کلیدواژهها | ||
Phononic crystal؛ Wave propagation؛ Finite difference time domain؛ Displacement-based formulation | ||
مراجع | ||
| ||
آمار تعداد مشاهده مقاله: 1,530 تعداد دریافت فایل اصل مقاله: 1,260 |