[1]徐伟杰,郭彤,陈城.实时混合模拟频域评价方法的物理意义[J].东南大学学报(自然科学版),2013,43(5):923-927.[doi:10.3969/j.issn.1001-0505.2013.05.004] 　Xu Weijie,Guo Tong,Chen Cheng.Physical significance of frequency-domain based evaluation method for real-time hybrid simulation[J].Journal of Southeast University (Natural Science Edition),2013,43(5):923-927.[doi:10.3969/j.issn.1001-0505.2013.05.004] 点击复制 实时混合模拟频域评价方法的物理意义() 分享到： var jiathis_config = { data_track_clickback: true };

43

2013年第5期

923-927

2013-09-20

文章信息/Info

Title:
Physical significance of frequency-domain based evaluation method for real-time hybrid simulation

1东南大学土木工程学院, 南京210096; 2旧金山州立大学工程学院, 旧金山94132
Author(s):
1School of Civil Engineering, Southeast University, Nanjing 210096, China
2School of Engineering, San Francisco State University, San Francisco 94132, USA

Keywords:

TU192
DOI:
10.3969/j.issn.1001-0505.2013.05.004

Abstract:
In order to investigate the physical significance of the frequency-domain evaluation method for real-time hybrid simulation, numerical and laboratory tests are conducted on linear and nonlinear structures. The parameters, such as amplitude, phrase(delay)and weights, with regards to the whole tests and to each frequency component, are calculated respectively. The results show that the amplitude and equivalent delay of the whole test can be obtained from the weighted sum of the amplitude and equivalent delay of each frequency. Therefore, the frequency-domain evaluation method in nature is to calculate the amplitude and phrase(delay)of each frequency and to take the weighted sum as the amplitude and phrase(delay)of the test, in which the square of the amplitude of each frequency is taken as weighting coefficient. Due to different weights of various frequency components, the results of the evaluation method are dominated by the low-frequencies components of the input. In the calculation of equivalent delay, the effect of the false delay should be considered especially for nonlinear structures.

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