Mechanical Stress Distribution and Reliability Analysis of GIL Tri-post Insulator

2021 ◽  
Author(s):  
Songtao Liu ◽  
Jin Li ◽  
Boxue Du ◽  
Hucheng Liang ◽  
Liucheng Hao ◽  
...  
Keyword(s):  
Stress Distribution ◽  
Mechanical Stress ◽  
Reliability Analysis ◽  
Post Insulator

The Strength Evaluation and Reliability Analysis of Periodic Symmetric Struts Support

2011 ◽  
Vol 462-463 ◽  
pp. 1164-1169
Author(s):  
Jing Xiang Yang ◽  
Ya Xin Zhang ◽  
Mamtimin Gheni ◽  
Ping Ping Chang ◽  
Kai Yin Chen ◽  
...  
Keyword(s):  
Distribution Function ◽  
Probability Distribution ◽  
Stress Distribution ◽  
Least Squares ◽  
Reliability Analysis ◽  
Least Squares Method ◽  
Nonlinear Least Squares ◽  
Distribution Model ◽  
Different Types ◽  
Nonlinear Least Squares Method

In this paper, strength evaluations and reliability analysis are conducted for different types of PSSS(Periodically Symmetric Struts Supports) based on the FEA(Finite Element Analysis). The numerical models are established at first, and the PMA(Prestressed Modal Analysis) is conducted. The nodal stress value of all of the gauss points in elements are extracted out and the stress distributions are evaluated for each type of PSSS. Then using nonlinear least squares method, curve fitting is carried out, and the stress probability distribution function is obtained. The results show that although using different number of struts, the stress distribution function obeys the exponential distribution. By using nonlinear least squares method again for the distribution parameters a and b of different exponential functions, the relationship between number of struts and distribution function is obtained, and the mathematical models of the stress probability distribution functions for different supports are established. Finally, the new stress distribution model is introduced by considering the DSSI(Damaged Stress-Strength Interference), and the reliability evaluation for different types of periodically symmetric struts supports is carried out.

Finite-element modelling of thermo-mechanical stress distribution in laser beam ceramic tile grout sealing process

2006 ◽  
Vol 220 (10) ◽  
pp. 1497-1508 ◽  
Author(s):  
A Liaqat ◽  
S Safdar ◽  
M A Sheikh
Keyword(s):  
Thermal Analysis ◽  
Finite Element ◽  
Stress Distribution ◽  
Laser Beam ◽  
Mechanical Stress ◽  
Ceramic Tile ◽  
Element Model ◽  
Ceramic Tiles ◽  
Temperature Dependent ◽  
Heat Effects

Laser tile grout sealing is a special process in which voids between the adjoining ceramic tiles are sealed by a laser beam. This process has been developed by Lawrence and Li using a customized grout material and a high power diode laser (HPDL). The process has been optimally carried out at laser powers of 60–120 W and at scanning speeds of 3–15 mm/s. Modelling of the laser tile grout sealing process is a complex task as it involves a moving laser beam and five different materials: glazed enamel, grout material, ceramic tile, epoxy bedding, and ordinary Portland cement substrate. This article presents the finite element model (FEM) of the laser tile grout sealing process. The main aim of this model is to accurately predict the thermo-mechanical stress distribution induced by the HPDL beam in the process. For an accurate representation of the process, the laser was modelled as a moving heat source. A three-dimensional transient thermal analysis was carried out to determine the temperature distribution. Temperature-dependent material properties and latent heat effects, due to melting and solidification of the glazed enamel, were taken into account in the FEM, thereby allowing a more realistic and accurate thermal analysis. The results of the thermal analysis were used as an input for the stress analysis with temperature-dependent mechanical properties. The results obtained from the FEM are compared with the published experimental results.

Intermolecular reactions and their effect on the mechanical stress distribution over the chemical bonds of polymers

1976 ◽  
Vol 18 (7) ◽  
pp. 1755-1761
Author(s):  
K.Yu. Fridlyand ◽  
V.V. Zhizhenkov ◽  
Ye.A. Yegorov ◽  
V.I. Vettegren
Keyword(s):  
Stress Distribution ◽  
Mechanical Stress ◽  
Chemical Bonds ◽  
Intermolecular Reactions

S0201-2-3 Finite Element Analysis of Mechanical Stress Distribution in the Mandibular Bone with Implants Supporting an Overdenture

2010 ◽  
Vol 2010.5 (0) ◽  
pp. 25-26
Author(s):  
Ryuji Shigemitsu ◽  
Tetsuya Matsumoto ◽  
Yu Ishii ◽  
Taro Ishikawa ◽  
Nobuhiro Yoda ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Distribution ◽  
Mechanical Stress ◽  
Element Analysis ◽  
Mandibular Bone

scholarly journals Mechanical stress distribution and risk assessment of 110 kV GIS insulator considering Al 2 O 3 settlement

High Voltage ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 65-71 ◽  
Author(s):  
Hucheng Liang ◽  
Boxue Du ◽  
Jin Li ◽  
Zehua Wang
Keyword(s):  
Risk Assessment ◽  
Stress Distribution ◽  
Mechanical Stress

Strength and Reliability Analysis of Hydraulic Support

2012 ◽  
Vol 544 ◽  
pp. 18-23 ◽  
Author(s):  
Yuan Yuan Ma ◽  
Li Yang Xie ◽  
Xiao Feng Qin
Keyword(s):  
Stress Distribution ◽  
Reliability Analysis ◽  
Stress Testing ◽  
Equivalent Stress ◽  
Ansys Software ◽  
Hydraulic Support ◽  
Total Displacement ◽  
Safe Production ◽  
Stent System ◽  
Distribution Rule

Hydraulic support is an important equipment of synthesis mechanization caving coal and safe production in modernization coal mine. According to the research object of ZF5000/16/28’s mould hydraulic support, stress distribution of dangerous parts is obtained by stress testing and ANSYS software. The relevant total displacement distribution rule and equivalent stress distribution rule of the type hydraulic support prototype were found. At the same time, reliability analysis of a single stent and stent system reliability prediction were carried out, which guides design and use of hydraulic support in theory better.

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