 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 12804 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8044
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| In English (Mech. Solids): | | 4760 |
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| Y. Huang, Z.F. Wang, and X.Y. Wang, "A Viscoelastic Weighted Artificial Boundary for Multisource Scattering Problems," Mech. Solids. 59 (3), 1391-1407 (2024) |
| Year |
2024 |
Volume |
59 |
Number |
3 |
Pages |
1391-1407 |
| DOI |
10.1134/S0025654424602647 |
| Title |
A Viscoelastic Weighted Artificial Boundary for Multisource Scattering Problems |
| Author(s) |
Y. Huang (Heilongjiang Earthquake Agency, Harbin, 150090 China; Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin, 150080 China, yanhuang_hit@163.com)
Z.F. Wang (Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin, 150080 China, zifa@iem.ac.cn)
X.Y. Wang (Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin, 150080 China; School of Architecture and Civil Engineering, Huangshan University, Huangshan, 245041 China) |
| Abstract |
Multisource scattering problems in simulating seismic wave inputs to structures, such as large-span bridges, remain a longstanding challenge. To address this issue, a viscoelastic weighted artificial boundary is proposed based on the assumption of an infinite linear-elastic medium; in addition, its spring and damping coefficients were derived using the apparent velocity and wave-field separation theory. A few examples of single- and multi-source models were used to analyse the accuracy of the proposed boundary, considering the influence of the scattering source location and source count. The numerical results demonstrated that the accuracy of the proposed boundary was higher than that of comparable approaches for the same problems. In multisource examples, the accuracy could be improved by approximately 20% in most cases, whereas in cases with a large source distance and uneven spatial distribution, the accuracy could be further improved by approximately 40%. These results confirm that the proposed solution can effectively simulate earthquake ground motion inputs for multipoint sources with large source distances and uneven spatial distributions. |
| Keywords |
multisource scattering, weighted viscoelastic artificial boundary, wave scattering, large-span bridges, multiple source inputs |
| Received |
04 February 2024 | Revised |
28 May 2024 | Accepted |
30 May 2024 |
| Link to Fulltext |
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