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Soft Ground subsidence is an important factor of subgrade stability. A reasonable forecast of subgrade settlement is of great significance to the safety. ABAQUS finite element software can handle very complex problems and simulate highly nonlinear problems and has a good prospect in predicting the settlements of soft ground, but considering the coefficients of variation of soil parameters are usually...
Aiming at vehicle-bridge coupling dynamic response, introduced the Virtual Prototyping Technology (VPT) with several examples to prove the probability of VPT to research the bridge or other platform structure, then reported a new model example with model test for wheel-track coupling analysis.
Maximal frequent itemsets mining is a fundamental and important problem in many data mining applications. In this paper, we present GMPV, a depth first search algorithm, which accurately displays itemset based on position vector, for mining maximal frequent itemsets. In GMPV algorithm, the transaction database is mapped to a Boolean matrix. The methods superset checking and pruning based on support...
The Unity Bridge between Tanzania and Mozambique as the background project, the deviation block of external prestressing are analyzed with ANSYS software. When the deviators holes inner diameter are enlarged 1.5 times from 130 mm because the different deviators are applied, the concrete stresses and cracks state are introduced in detail, some suggestions for construction are presented. The results...
A large-scale low-temperature aboveground LNG storage tank design is described in detail, especially the process of prestressing tendons configuration using finite element method (FEM). Considering the LNG storage tanks working conditions and corresponding loading conditions, the strength and stress statuses are simulated using 3D FEM according to the actual construction stages. The corresponding...
Current portable electronic products are driving component packaging towards Flip Chip Packaging Technologies for integrating multiple electrical functionalities. The driver for flip chip continues to be performance and small form factor. This paper evaluates the lidless and molded flip chip packages with 40nm ultra low K (ULK) Silicon Technology. A comparative study on the two package types is carried...
Dynamic meshing of Spiral bevel gears is a complicated geometric, material, and contact non-linear problem. The finite element method (FEM) is a common and effective approach and direct constraint method is highly advantageous to solve contact non-linear problems. In this paper, a three-dimensional nonlinear contact analysis model for a pair of spiral bevel gears was established. Based on this model,...
For a curved rigid bridge found vertical cracks in web during the construction process, the finite element software (MIDAS) was used to analysis for the creaking reason for the cast-in-place concrete box bridge. From the analysis of the objectives, the credibility of the results, foundation for modeling, the factors choice for the model and relevant experience are introduced. Including low strength...
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