| 中频力学环境预示的FE-SEA混合方法研究 |
| |
| 引用本文： | 张瑾,马兴瑞,韩增尧,邹元杰.中频力学环境预示的FE-SEA混合方法研究[J].振动工程学报,2012,25(2):206-214. |
| |
| 作者姓名： | 张瑾 马兴瑞 韩增尧 邹元杰 |
| |
| 作者单位： | 1. 中国空间技术研究院,北京,100094
2. 中国航天科技集团,北京,100037 |
| |
| 摘 要： | 针对中频力学环境预示,阐述了FE-SEA混合方法的基础理论,建立了该方法的详细计算流程,并以Matlab为平台开发了FE-SEA混合方法的计算程序.结合算例,通过与能量流的Monte Carlo仿真结果比较,验证了FE-SEA混合方法的准确性.研究表明:FE-SEA混合方法可以达到Monte Carlo仿真的计算精度,且其计算效率远高于后者；该方法在弥补传统有限元和统计能量分析不足的同时,也为中频力学环境预示的实现提供了一种全新的思路.
|
| 关 键 词： | 统计能量分析 中频 FE-SEA 能量流 有限元 |
FE-SEA hybrid method for the mid-frequency dynamic prediction |
| |
| ZHANG Jin
,
MA Xing-rui
,
HAN Zeng-yao
,
ZOU Yuan-jie.FE-SEA hybrid method for the mid-frequency dynamic prediction[J].Journal of Vibration Engineering,2012,25(2):206-214. |
| |
| Authors: | ZHANG Jin MA Xing-rui HAN Zeng-yao ZOU Yuan-jie |
| |
| Affiliation: | 1(1.China Academy of Space Technology,Beijing 100094,China;2.China Aerospace Science and Technology Corp.,Beijing 100036,China) |
| |
| Abstract: | For the mid-frequency dynamic prediction,the Hybrid FE-SEA Method is presented and the solution procedure is established and shown as a flow chart.Meanwhile,relative computer program is developed on the platform of Matlab.Finally,the method is verified by applying the Monte Carlo simulation.By using FESEA accurate results are obtained at the mid-frequency band,while the computational efficiency is much greater than that of the Monte Carlo simulation.Therefore,the Hybrid FE-SEA Method can be a suitable compensation for the traditional finite element method(FEM) and the statistical energy analysis(SEA) and provides a potential solution to the mid-frequency dynamic prediction. |
| |
| Keywords: | statistical energy analysis mid-frequency FE-SEA energy flow finite element |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
