Citation:
Li Zhishan, Cao Shengtao, Liu Chunming, Yang Zhiyong. Realization and Application of Rayleigh Damping and Modal Damping in Explicit Dynamic Analysis of Large-scale Buildings. Journal of Information Technologyin Civil Engineering and Architecture,
2015, 7(6): 91-95.
doi: 10.16670/j.cnki.cn11-5823/tu.2015.06.17
2015, 7(6): 91-95. doi: 10.16670/j.cnki.cn11-5823/tu.2015.06.17
Realization and Application of Rayleigh Damping and Modal Damping in Explicit Dynamic Analysis of Large-scale Buildings
| 1. | Key Lab of Seismic Engineering and Application Technologies of Guangdong Province, Guangzhou University, Guangzhou 510415, China |
| 2. | China Academy of Building Research, Beijing 100013, China |
To make up for the deficiencies of Rayleigh damping and "simplified" modal damping in explicit dynamic analysis, this paper proposes the "correction" modal damping (M-M D) of modal damping and mass damping based on high-precision finite element model. It also analyzes Rayleigh damping and M-M D from the perspective of explicit solving accuracy, stability and inhibiting effect on high-order modal amplifier response. The paper uses PKPM-SAUSAGE to compare the explicit dynamic time calculation results of these two dampings and analyzes the effect of high-order modal amplifier response on structural dynamic analysis and the inhibiting effect of these two damping models on high-order modal amplifier response. The results show that M-M D excels.
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