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Research on TMD collision damping based on two-way dense ribbed cavity building cover

Jianyong Chen

Jianyong Chen

Wuhan PolytechnicWuhan, China
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Chen, Jianyong
  
21 mars 2025
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Publié en ligne: 21 mars 2025
Reçu: 01 nov. 2024
Accepté: 09 févr. 2025
DOI: https://doi.org/10.2478/amns-2025-0652
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© 2025 Jianyong Chen, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1.

Schematic diagram of two-way tight floor
Schematic diagram of two-way tight floor

Figure 2.

TMD shock absorber construction
TMD shock absorber construction

Figure 3.

Deformation deflection
Deformation deflection

Figure 4.

Deflection cloud map
Deflection cloud map

Figure 5.

Structural displacement power amplification coefficient
Structural displacement power amplification coefficient

Figure 6.

The average energy response of the main structure is compared
The average energy response of the main structure is compared

The section of the hollow wall (kN·m)

Hollow rate (%) Square mold Cylindrical core mold
DNS ASM DNS ASM
M1 M2 M1 M2 M1 M2 M1 M2
20 36.85 160.65 38.15 166.67 36.94 154.12 40.61 173.02
25 37.32 160.32 38.33 167.74 36.35 146.59 40.78 173.57
30 37.37 158.41 38.42 168.45 37.66 157.42 40.87 173.88
35 37.78 158.13 38.57 168.62 37.94 158.06 40.92 173.54
40 37.95 158.62 38.74 168.59 38.31 156.83 40.85 172.72
45 38.09 158.34 38.93 168.51 37.69 157.24 40.92 171.76
50 38.12 158.06 39.11 168.63 37.85 156.91 40.98 170.85

Optimal parameter (main structure unpassed)

Mass ratio Optimal frequency ratio Optimal damping ratio
AS NS Error AS NS Error
0.5% 0.9902 0.9902 0.00% 0.0611 0.0611 0.00%
1.5% 0.9805 0.9806 0.01% 0.0858 0.0858 0.00%
2.5% 0.9711 0.9711 0.00% 0.1045 0.1046 0.10%
3.5% 0.9613 0.9613 0.00% 0.1202 0.1202 0.00%
4.5% 0.9526 0.9528 0.02% 0.1337 0.1337 0.00%
5.5% 0.9438 0.9437 -0.01% 0.1458 0.1457 -0.07%
6.5% 0.9344 0.9345 0.01% 0.1569 0.1569 0.00%
7.5% 0.9261 0.9258 -0.03% 0.1668 0.1668 0.00%
8.5% 0.9175 0.9174 -0.01% 0.1761 0.1759 -0.11%
9.5% 0.9093 0.9091 -0.02% 0.1845 0.1846 0.05%
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Anglais
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Sciences de la vie, Sciences de la vie, autres, Mathématiques, Mathématiques appliquées, Mathématiques générales, Physique, Physique, autres
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