| 周期波导中弹性波局部化问题的研究 |
| |
| 引用本文： | 李凤明,胡超,黄文虎. 周期波导中弹性波局部化问题的研究[J]. 应用力学学报, 2002, 19(4): 47-51 |
| |
| 作者姓名： | 李凤明 胡超 黄文虎 |
| |
| 作者单位： | 哈尔滨工业大学,哈尔滨,150001 |
| |
| 基金项目： | 国家自然科学基金资助项目 (19972 0 18) |
| |
| 摘 要： | 基于弹性波传递矩阵方法，对周期波导中弹性波局部化问题进行了分析研究。根据互易性原理和能量地恒定律，给出了结构弹性波传递矩阵的一般表达式。采用两种求解局部化因子的计算方法，分别计算了谐和与失谐周期波导中的局部化因子，并对其进行了分析讨论。本文对周期波导中波传播与振动局部化的分析方法和计算结果可用于结构的优化设计。
|
| 关 键 词： | 周期波导 弹性波 传递矩阵 Lyapunov指数 局部化因子 |
| 文章编号： | 1000-4939(2002)04-0047-05 |
| 修稿时间： | 2001-12-18 |
Elastic Wave Localization in One-dimensional Periodic Wave-guides |
| |
| Li Fengming Hu Chao Huang Wenhu. Elastic Wave Localization in One-dimensional Periodic Wave-guides[J]. Chinese Journal of Applied Mechanics, 2002, 19(4): 47-51 |
| |
| Authors: | Li Fengming Hu Chao Huang Wenhu |
| |
| Abstract: | In this paper, based on the method of wave transfer matrix, elastic wave localization in periodic wave guide is studied. According to reciprocity and conservation of energy, a general formulation of wave transfer matrix is presented. Two kinds of methods for solving localization factor are given. As examples, localization factors of ordered and disordered periodic wave guides are respectively calculated and discussed. The method and results in this paper for solving the problem of wave and vibration mode localization in periodic wave guide can be used in the optimum design of such kind of structure. |
| |
| Keywords: | Periodic wave guide elastic wave transfer matrix Lyapunov exponent localization factor. |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
