Research and applications of arch dam optimal design based on the finite element method

2006 ◽  
pp. 889-895
Author(s):  
Su chao ◽  
Jiang Hongdao
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Optimal Design ◽  
Arch Dam ◽  
The Finite Element Method ◽  
Element Method

scholarly journals Integrating the Finite Element Method with a Data-Driven Approach for Dam Displacement Prediction

2020 ◽  
Vol 2020 ◽  
pp. 1-16 ◽  
Author(s):  
Chenfei Shao ◽  
Chongshi Gu ◽  
Zhenzhu Meng ◽  
Yating Hu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Elastic Modulus ◽  
Random Coefficient ◽  
Arch Dam ◽  
Data Driven ◽  
The Finite Element Method ◽  
Random Coefficient Model ◽  
Proposed Model ◽  
Element Method

Both numerical simulations and data-driven methods have been applied in dam’s displacement modeling. For monitored displacement data-driven methods, the physical mechanism and structural correlations were rarely discussed. In order to take the spatial and temporal correlations among all monitoring points into account, we took the first step toward integrating the finite element method into a data-driven model. As the data-driven method, we selected the random coefficient model, which can make each explanatory variable coefficient of all monitoring points following one or several normal distributions. In this way, explanatory variables are constrained. Another contribution of the proposed model is that the actual elastic modulus at each monitoring point can be back-calculated. Moreover, with a Lagrange polynomial interpolation, we can obtain the distribution field of elastic modulus, rather than gaining one value for the whole dam in previous studies. The proposed model was validated by a case study of the concrete arch dam in Jinping-I hydropower station. It has a better prediction precision than the random coefficient model without the finite element method.

scholarly journals Optimal design of deep back relief in ceramic floorings by means of the finite element method

2008 ◽  
Vol 116 (1357) ◽  
pp. 941-949 ◽  
Author(s):  
Beatriz DEFEZ ◽  
Guillermo PERIS-FAJARNES ◽  
Ignacio TORTAJADA ◽  
Fernando BRUSOLA ◽  
Larisa DUNAI
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Optimal Design ◽  
The Finite Element Method ◽  
Element Method

Vibration characteristics of steering columns with bellows

2001 ◽  
Vol 215 (2) ◽  
pp. 171-178
Author(s):  
K H Kim ◽  
G H Han ◽  
H K Kim
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Optimal Design ◽  
Vibration Characteristics ◽  
Sensitivity Analyses ◽  
Design Parameters ◽  
The Finite Element Method ◽  
Negative Effects ◽  
Vibration Sensitivity ◽  
Element Method

Bellows can be used as collapse elements for automotive steering columns. The crash performance of the steering column can be significantly improved with the bellows. However, the bending flexibility of the bellows has negative effects on the vibration characteristics. An effort is made to improve the vibration characteristics of steering columns with bellows. To understand the effects of various design parameters on the collapse and vibration, sensitivity analyses are performed by the finite element method using Taguchi's scheme. It is shown that the structure of the upper mounting bracket is the most important parameter affecting the vibration characteristics. An optimal design is proposed for a lower tilt type steering column.

Optimization of the Geometry of Shafts Using Boundary Elements

1984 ◽  
Vol 106 (2) ◽  
pp. 199-202 ◽  
Author(s):  
C. A. Mota Soares ◽  
H. C. Rodrigues ◽  
L. M. Oliveira Faria ◽  
E. J. Haug
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Nonlinear Programming ◽  
Boundary Element Method ◽  
Optimal Design ◽  
Boundary Elements ◽  
Linearization Method ◽  
Nonlinear Programming Problem ◽  
The Finite Element Method ◽  
Element Method

The problem of the optimization of the geometry of shafts is formulated in terms of boundary elements. The corresponding nonlinear programming problem is solved by Pshenichny’s Linearization method. The advantages of the boundary element method over the finite element method for optimal design of shafts are discussed, with reference to the applications.

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