| 模态分析中输电铁塔模型的进一步简化 |
| |
| 引用本文： | 张晓志,孙旭壮.模态分析中输电铁塔模型的进一步简化[J].山东科技大学学报(自然科学版),2011,30(1). |
| |
| 作者姓名： | 张晓志 孙旭壮 |
| |
| 作者单位： | 东北电力大学,建筑工程学院,吉林,吉林,132012 |
| |
| 基金项目： | 东北电力大学博士科研启动基金 |
| |
| 摘 要： | 以缩减输电铁塔模型动力自由度为目的,基于静力凝聚技术,在已有研究的基础上,考虑将现有模型的主要动力自由度中的竖向分量凝聚掉,使动力自由度再减缩1/3.将凝聚掉竖向动力自由度的有限元模型称为简化模型,利用MATLAB语言编程,对简化前后输电铁塔结构模型分别进行了模态分析.研究结果表明:简化前后输电铁塔结构模型的整体模态具有良好的一致性,凝聚掉主要动力自由度中的竖向分量,对整体模态分析结果的影响很小.今后在对输电铁塔模型进行模态分析时,可以忽略竖向动力自由度的影响.
|
| 关 键 词： | 静力凝聚 动力自由度 整体模态 竖向自由度 一致性 |
The Further Simplification of the Model of Transmission Tower in the Modal Analysis |
| |
| ZHANG Xiaozhi,SUN Xuzhuang.The Further Simplification of the Model of Transmission Tower in the Modal Analysis[J].Journal of Shandong Univ of Sci and Technol: Nat Sci,2011,30(1). |
| |
| Authors: | ZHANG Xiaozhi SUN Xuzhuang |
| |
| Institution: | ZHANG Xiaozhi,SUN Xuzhuang(College of Architectural Engineering,Northeast Dianli University,Jilin,Jilin 132012,China) |
| |
| Abstract: | To reduce the number of dynamic degrees of freedom for the model of transmission tower and based on static condensation technique,the vertical component of the main dynamic in the existing model was condensed to make one-third degrees of freedom less than that in existed research.The finite element model in which the vertical degrees of freedom were condensed was called the simplified model,and the for simplified and original models of were made by using MATLAB language program.The results showed that the i... |
| |
| Keywords: | static condensation dynamic degree of freedom integral modality vertical degree of freedom consistence |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
