Finite Element Analysis for the Collapse Accident of a 110kV Transmission Tower

2014 ◽  
Vol 986-987 ◽  
pp. 927-930
Author(s):  
Yi Zhu ◽  
Bo Li ◽  
Hao Wang ◽  
Kun Li
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Cross Section ◽  
Strong Wind ◽  
Transmission Tower ◽  
Element Analysis ◽  
Straight Line ◽  
The Finite Element Analysis

Put the finite element analysis of line tower coupling modeling to the collapse of a 110 kV line straight-line tower, study the effect of strong wind on transmission tower and wire. The results show that under the action of strong wind, the material specification selected by the part of the rods on the type of tower is lower, cross section is smaller, the principal material of tower will be instable and flexional under the compression, resulting in tower collapsed.

scholarly journals The Generalized Untwist Problem of Rotating Blades: A Coupled Aeroelastic Formulation

1994 ◽  
Author(s):  
Gao-Lian Liu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Cross Section ◽  
Theoretical Basis ◽  
Variational Principles ◽  
Element Analysis ◽  
Rotating Blades ◽  
Section Shape ◽  
The Finite Element Analysis ◽  
Elastic Distortion

The untwist of rotating blades in turbomachines treated so far in the literatare simply as a pure elasticity problem is generalized and formulated rigorously as a problem of aeroelasticity by variational principles (VPs) and generalized VP (GVP). It takes into account not only the centrifugal force, but also the aeroelastic interaction between blades and the flow as well as the elastic distortion of the cross section shape of blades, assuming the material to be linearly elastic but nonisotropic. Thus, a new rigorous theoretical basis for the finite element analysis of blade untwist in turbomachine design is provided.

Telescopic Boom Design and Finite Element Analysis Based on ABAQUS

2014 ◽  
Vol 1077 ◽  
pp. 215-220
Author(s):  
Hao Liang Guo ◽  
Xi Hui Mu ◽  
Kai Lv ◽  
Feng Po Du
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Cross Section ◽  
Basic Structure ◽  
Strain Diagram ◽  
Stress Strain ◽  
Element Analysis ◽  
Section Shape ◽  
The Finite Element Analysis ◽  
Higher Weights

This document mainly studies the cross-section shape of the box-type telescopic boom. First, the basic structure of the telescopic boom was analyzed, and then, the finite element analysis of the quadrilateral and hexagonal telescopic booms were conducted based on ABAQUS with the same section height, width, thickness, as well as the same constraints and loads condition. The stress-strain diagram was obtained. Comparing to the quadrilateral boom, the hexagonal telescopic boom loads higher, weights lighter, and performs better.

scholarly journals Scaling Law for the Velocity of Domino Toppling Motion in Curved Paths

2020 ◽  
Author(s):  
Guang-Kai Song ◽  
Xiao-Lin Guo ◽  
Bo-Hua Sun
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Scaling Law ◽  
Propagation Speed ◽  
Square Root ◽  
Element Analysis ◽  
Simple Method ◽  
Straight Line ◽  
The Finite Element Analysis ◽  
Curved Paths

The arranged paths of dominoes have many shapes. The scaling law for the propagation speed of domino toppling has been extensively investigated. However, in all previous investigations, the scaling law for the velocity of domino toppling motion in curved lines was not taken into account. In the present work, the finite-element analysis (FEA) program ABAQUS was used to study the velocity of domino toppling motion in curved lines. It is shown that the domino propagation speed has a rising trend with increasing domino spacing in a straight line. It is also found that domino propagation speed is linearly proportional to the square root of domino separation. This research proved that the scaling law for the speed of domino toppling motion given by Sun (2020) is true [B-H. Sun, 2020. Scaling law for the propagation speed of domino toppling. AIP Advances, 10(9),095124.]. Moreover, the shape of domino arrangement paths has no influence on the scaling law for the propagation speed of dominoes but can affect the coefficient of the scaling law for the velocity. Therefore, the amendatory function for the propagation speed of dominoes in curved lines was formulated by the FEA data. The fitted amendatory function, $\varphi_{revise}$, provides the simple method for a domino player to quickly estimate the propagation speed of dominoes in curved lines.

The Finite Element Analysis and Improvement Practice of Shaker Based on ANSYS

2012 ◽  
Vol 430-432 ◽  
pp. 1851-1854
Author(s):  
Song Zhang ◽  
Yan Hong Yang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Vibration Mode ◽  
Exciting Force ◽  
Element Analysis ◽  
Straight Line ◽  
Production Practice ◽  
The Finite Element Analysis ◽  
Improvement Method ◽  
Sintering Plant

The SZR straight line shaker applied in a sintering plant is used as an example. Based on the shaker's performance, the inherent mode of vibration, the natural frequency and other factors were analyzed, an improvement method was proposed. The finite element analysis is used to simulate the exciting force, and performed the vibration mode and statical analysis. This will improve its application in the production practice, with a significant effect.

The Finite Element Analysis of Cross Steel Reinforced Concrete Special-Shaped Columns

2013 ◽  
Vol 395-396 ◽  
pp. 481-484
Author(s):  
Ri Liang Li ◽  
Ya Feng Xu ◽  
Shou Yan Bai
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Reinforced Concrete ◽  
Cross Section ◽  
Displacement Curve ◽  
Horizontal Load ◽  
Element Analysis ◽  
Steel Reinforced Concrete ◽  
The Finite Element Analysis ◽  
The Cross

In order to study the force capacity of the cross steel reinforced concrete special-shaped column in horizontal load, the finite element analysis software ABAQUS has been used. We adopt a horizontal direction displacement loading method to apply horizontal load, and its displacement is 20mm. We simulate the stress distribution of the six rates of steel bone and the six different cross section sizes of steel reinforced concrete special-shaped columns. According to the result, the load - displacement curve has been dropped, and we analyze the mechanical properties of cross steel reinforced concrete special-shaped column by the curve. The results show that the bearing capacity of cross steel reinforced concrete special-shaped column has improved with the increasing of rate of steel bone and the cross section size.

Finite Element Analysis for the Collapse Accident of One 110kV Transmission Tower

2013 ◽  
Vol 690-693 ◽  
pp. 1940-1944
Author(s):  
Ming Jian Jian ◽  
Du Qing Zhang ◽  
Guang Cheng Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Finite Element Model ◽  
Transmission Line ◽  
Element Model ◽  
Strong Wind ◽  
Transmission Tower ◽  
Element Analysis ◽  
Line System ◽  
Buckling Instability

One collapse tower of 110 kV transmission line was taken as an example and a finite element model for the coupled tower-line system was established for investigating the effects of the strong wind on the transmission tower and line. The result shows that the selected standard of material of some rod members is lower, and the area of their section is relatively small. Main legs present buckling instability because of being in compression under action of the strong wind, which leads to the collapse accident of the towers.

Interactive Graphics for the Analysis of Tires

1985 ◽  
Vol 13 (3) ◽  
pp. 127-146 ◽  
Author(s):  
R. Prabhakaran
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Approximate Solutions ◽  
Interactive Graphics ◽  
Element Analysis ◽  
Analysis Process ◽  
Physical Problems ◽  
The Finite Element Analysis ◽  
Analysis Computer ◽  
Discretization Technique

Abstract The finite element method, which is a numerical discretization technique for obtaining approximate solutions to complex physical problems, is accepted in many industries as the primary tool for structural analysis. Computer graphics is an essential ingredient of the finite element analysis process. The use of interactive graphics techniques for analysis of tires is discussed in this presentation. The features and capabilities of the program used for pre- and post-processing for finite element analysis at GenCorp are included.

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.

Use of the Finite Element Analysis Method in Pedodontics

2018 ◽  
Vol 55 (4) ◽  
pp. 666-675
Author(s):  
Mihaela Tanase ◽  
Dan Florin Nitoi ◽  
Marina Melescanu Imre ◽  
Dorin Ionescu ◽  
Laura Raducu ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Structural Model ◽  
Analysis Method ◽  
Ansys Software ◽  
Concentrated Force ◽  
Element Analysis ◽  
Finite Element Analysis Method ◽  
The Finite Element Analysis ◽  
Solid Type

The purpose of this study was to determinate , using the Finite Element Analysis Method, the mechanical stress in a solid body , temporary molar restored with the self-curing GC material. The originality of our study consisted in using an accurate structural model and applying a concentrated force and a uniformly distributed pressure. Molar structure was meshed in a Solid Type 45 and the output data were obtained using the ANSYS software. The practical predictions can be made about the behavior of different restorations materials.

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