| 四边固支金属薄板裂纹检测的实验研究 |
| |
| 引用本文： | 樊久铭,王玮瑾,芦田,刘效东.四边固支金属薄板裂纹检测的实验研究[J].哈尔滨工业大学学报,2011(Z1):75-78. |
| |
| 作者姓名： | 樊久铭 王玮瑾 芦田 刘效东 |
| |
| 作者单位： | 哈尔滨工业大学航天科学与力学系 |
| |
| 基金项目： | 航空科学基金(20090777005) |
| |
| 摘 要： | 本文应用结构动力学基本理论对四边固支薄板结构的振动特性进行了有限元仿真分析,探讨了裂纹位置及深度等参数对该结构模态参数的影响,利用有限元分析结果,对四边固支薄板含有损伤裂纹情况下的模态参数进行了实验研究.仿真分析和实验研究均证明裂纹参数对模型有较大影响.
|
| 关 键 词： | 裂纹检测 实验模态分析 薄板结构 结构动力特性 |
Experimental study of crack detection for clamped metal sheet |
| |
| FAN Jiu-ming,WANG Wei-jin,LU Tian,LIU Xiao-dong.Experimental study of crack detection for clamped metal sheet[J].Journal of Harbin Institute of Technology,2011(Z1):75-78. |
| |
| Authors: | FAN Jiu-ming WANG Wei-jin LU Tian LIU Xiao-dong |
| |
| Affiliation: | (School of Astronautics,Harbin Institute of Technology,Harbin 150001,China) |
| |
| Abstract: | In this paper,by using the fundamental theory of structural dynamics,the vibration characteristics of clamped metal sheet with cracks has been analyzed theretically through Finite Element method.The influence of the crack’s parameters such as location,depth etc on the structural modal parameters has been discussed.In the meantime,the modal paprameters of clamped metal sheet with internal crack have been obtained experimentally.From both the experiamental and the FEM simulation results,it is clear that the crack’s parameters have observably influence on the vibration mode of the metal sheet while there is a crack inside the clamped metal sheet. |
| |
| Keywords: | crack detection experimental modal analysis sheet structure structural dynamic characteristic |
| 本文献已被 CNKI 等数据库收录！ |
|
