A Sensitivity Study of Structure Behavior of Strengthened Beams for Buried High-Pressure Steel Bifurcation

2011 ◽  
Vol 413 ◽  
pp. 133-137 ◽  
Author(s):  
Yu Ting Lu ◽  
Zhen Zhong Shen ◽  
Li Qun Xu
Keyword(s):  
Finite Element ◽  
High Pressure ◽  
Parametric Design ◽  
Three Dimensional ◽  
Element Model ◽  
Sensitivity Study ◽  
Hydropower Station ◽  
Complex Structures ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element

As one of the key structures of hydropower underground projects, buried high-pressure steel bifurcations have complex structures and undefined force states. Based on practical condition of the buried high-pressure steel bifurcation of Sandaowan Hydropower Station, a nonlinear three-dimensional finite element model with parametric design language is established to analyze the changing law of the stress of the lining affected by the dimension of the strengthened beams. It is proposed that to increase the height of the strengthened beams can be reduce the phenomenon of stress concentration effectively in the bifurcation, which can be served as a theory reference for the engineering design and construction.

Finite Element Analysis for the Mega Columns for XRL West Kowloon Terminus

2013 ◽  
Vol 405-408 ◽  
pp. 1139-1143
Author(s):  
Wei Su ◽  
Ying Sun ◽  
Shi Qing Huang ◽  
Ren Huai Liu
Keyword(s):  
Finite Element ◽  
Stress Distribution ◽  
Parametric Design ◽  
Three Dimensional ◽  
Element Model ◽  
Von Mises Stress ◽  
Element Analysis ◽  
Dimensional Finite Element ◽  
Von Mises ◽  
Three Dimensional Finite Element

Using ANSYS parametric design language, a three-dimensional finite element model is developed to analyze the stress distribution and the strength of the mega columns for XRL West Kowloon Terminus. The detailed von Mises stress distribution in each column, vertical stiffener plates and the diaphragm plates is obtained. From the analysis, the phenomenon of stress concentration is obvious in both upper and lower diaphragm plates. The local value of von Mises stress in them is higher than the yield stress value, which must be avoided by more detailed local structural design.

The Time to Eliminate the Expansion Joints of Diversion Pipeline in Wanjiazhai Hydropower Station

2015 ◽  
Vol 733 ◽  
pp. 472-477
Author(s):  
Chun Tao Wang
Keyword(s):  
Finite Element ◽  
Stress State ◽  
Three Dimensional ◽  
Element Model ◽  
Hydropower Station ◽  
Expansion Joints ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element ◽  
Hydro Project ◽  
Hydropower Stations

At present, many hydropower stations eliminate the expansion joints to solve the pipe leakage problem. It’s very important to control the welding environment temperatures in eliminating the final weld joint of the expansion joints. To address this problem, by adopting three-dimensional finite element model in studying the hydro project of Wanjiazhai, this paper analyzes the stress state of steel pipe in all welding environment temperatures in details and suggests the proper range of welding environment temperatures. Researchers suggest that May is suitable to perform welding.

Finite Element Analysis of Nonuniformity of Tires with Imperfections5

2007 ◽  
Vol 35 (3) ◽  
pp. 226-238 ◽  
Author(s):  
K. M. Jeong ◽  
K. W. Kim ◽  
H. G. Beom ◽  
J. U. Park
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Element Model ◽  
Radial Force ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Dimensional Finite Element ◽  
Force Variation ◽  
Three Dimensional Finite Element

Abstract The effects of variations in stiffness and geometry on the nonuniformity of tires are investigated by using the finite element analysis. In order to evaluate tire uniformity, a three-dimensional finite element model of the tire with imperfections is developed. This paper considers how imperfections, such as variations in stiffness or geometry and run-out, contribute to detrimental effects on tire nonuniformity. It is found that the radial force variation of a tire with imperfections depends strongly on the geometrical variations of the tire.

Mechanical Simulation of Knee Movement in Basketball Shooting

2013 ◽  
Vol 336-338 ◽  
pp. 760-763
Author(s):  
Hui Yue
Keyword(s):  
Finite Element ◽  
Cruciate Ligament ◽  
Three Dimensional ◽  
Element Model ◽  
Basketball Player ◽  
Knee Movement ◽  
Dimensional Finite Element ◽  
Anterior Cruciate ◽  
Three Dimensional Finite Element

A short explanation of the finite element method as a powerful tool for mathematical modeling is provided, and an application using constitutive modeling of the behavior of ligaments is introduced. Few possible explanations of the role of water in ligament function are extracted from two dimensional finite element models of a classical ligament. The modeling is extended to a three dimensional finite element model for the human anterior cruciate ligament. Simulation of ligament force in pitching motion of basketball player is studied in this paper.

Sign in / Sign up

Export Citation Format

Share Document