| Lamb波在搭接板中传播规律的数值仿真研究 |
| |
| 引用本文： | 吴斌,周伟,何存富.Lamb波在搭接板中传播规律的数值仿真研究[J].压力容器,2011,28(6):24-30. |
| |
| 作者姓名： | 吴斌 周伟 何存富 |
| |
| 作者单位： | 北京工业大学机电学院,北京,100124 |
| |
| 基金项目： | 国家自然科学基金(10972014)；北京市人才强教计划 |
| |
| 摘 要： | 对储罐底板的搭接结构进行建模仿真，利用加载波结构的原理在板中激励出单一的Lamb 波模态，得到了各模态在搭接板中的传播规律与信号特征；利用能量系数对不同频率激励情况下的各模态信号进行了分析，得到了A0模态和S0模态能量分布和损失的规律，对比了各自穿透焊缝的特性，同时，研究了搭接长度对信号的影响。研究表明，低频Lamb波...
|
| 关 键 词： | Lamb波 搭接板 有限元仿真 单一模态 |
Experimental and Numerical Study of the Lamb Waves Propagation in Overlapping Plates |
| |
| WU Bin,ZHOU Wei,HE Cun-fu.Experimental and Numerical Study of the Lamb Waves Propagation in Overlapping Plates[J].Pressure Vessel Technology,2011,28(6):24-30. |
| |
| Authors: | WU Bin ZHOU Wei HE Cun-fu |
| |
| Affiliation: | WU Bin,ZHOU Wei,HE Cun-fu(College of Mechanical Engineering and Applied Electronics Technology,Beijing University of Technology,Beijing 100124,China) |
| |
| Abstract: | Modeling and simulating the lap structure of tank floor,launching the single Lamb wave mode using the principle of loading wave structure,obtained the propagation law and signal features of every mode in the overlapping plates.Analyzing the signals of every mode using the energy coefficient in the way of launching different frequencies,obtained the law of energy distribution and loss of A0 mode and S0 mode,compared the ability of transmitting the weld joint,meanwhile,the effect on signals by length of overl... |
| |
| Keywords: | Lamb wave overlapping plates FEM single mode |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
