STUDY ON COMPUTATIONAL MESH OF THE M. A. C. METHOD : Study on Prediction Method of Room Air Distribution Using Numerical Analysis 1

Link prediction in complex networks has become a common focus of many researchers. But most existing methods concentrate on neighbors, and rarely consider degree heterogeneity of two endpoints. Node degree represents the importance or status of endpoints. We describe the large-degree heterogeneity as the nonequilibrium between nodes. This nonequilibrium facilitates a stable cooperation between endpoints, so that two endpoints with large-degree heterogeneity tend to connect stably. We name such a phenomenon as the nonequilibrium cooperation effect. Therefore, this paper proposes a link prediction method based on the nonequilibrium cooperation effect to improve accuracy. Theoretical analysis will be processed in advance, and at the end, experiments will be performed in 12 real-world networks to compare the mainstream methods with our indices in the network through numerical analysis.

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The Prediction Method of S-N Curve for Welded Steel Structure Using Critical Distance Theory

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.193-194.1436 ◽

2012 ◽

Vol 193-194 ◽

pp. 1436-1439

Author(s):

De Qing Guan ◽

Yan Hui Pan

Keyword(s):

Residual Stress ◽

Fatigue Strength ◽

Numerical Analysis ◽

Engineering Application ◽

Prediction Method ◽

Steel Structure ◽

Critical Distance ◽

Residual Stress Field ◽

Welded Steel ◽

Volume Method

The welded steel structure is used as the research object in this paper. On the basis of numerical analysis of welded steel structure in 3-D residual stress field, the predicted method of the fatigue strength and S-N curve for welded steel structure is set using the volume method of the critical distance theory. The fatigue strength and S-N curve of the typical the welded steel structure including butt, misaligned welded and T-shape joints are got through theory prediction. The predicted value coincides with the experimental value. This method can be reduced fatigue test, saved funds and provided reference for engineering application.

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Plate Response to Buried Charge Explosion

Materials Science Forum ◽

10.4028/www.scientific.net/msf.566.83 ◽

2007 ◽

Vol 566 ◽

pp. 83-88

Author(s):

Stanislav Rolc ◽

Vladislav Adamík ◽

J. Buchar ◽

L. Severa

Keyword(s):

Finite Element ◽

Numerical Analysis ◽

Explosive Charge ◽

Reasonable Agreement ◽

Mesh Size ◽

Finite Element Code ◽

Structure Response ◽

Computational Mesh ◽

Buried Explosive ◽

Explosive Charges

This paper deals with the dynamic response of clamped plate to the loading following from the detonation of buried explosive charge. The cylindrical explosive charges of 8 kg mass has been considered. The numerical analysis is carried out using the LS DYNA finite element code. Numerical results exhibit reasonable agreement with results of controlled explosion experiments. The study is oriented mainly on the effects of structure representations (solids or shells) and of computational mesh size on evaluation of the structure response.

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