A systematic analysis method for rock failure mechanism under stress unloading conditions: a case of rock burst

2020 ◽  
Vol 79 (15) ◽  
Author(s):  
Fuqiang Ren ◽  
Yuan Chang ◽  
Manchao He
Keyword(s):  
Failure Mechanism ◽  
Rock Burst ◽  
Rock Failure ◽  
Analysis Method ◽  
Systematic Analysis

scholarly journals Study on the Design of Luxury Exhibition Space Based on Narrative Theory

2021 ◽  
Vol 236 ◽  
pp. 05060
Author(s):  
Liu Ke ◽  
Liu Xiaodong
Keyword(s):  
Interdisciplinary Research ◽  
Research Method ◽  
Narrative Theory ◽  
Emotional Communication ◽  
Luxury Brands ◽  
Analysis Method ◽  
Systematic Analysis ◽  
Exhibition Space ◽  
Spatial Narrative ◽  
The Relationship

This thesis will take the narrative theory as the foundation, analyzing the narrative method of luxury display space. The author adopts the literature research method, systematic analysis method, and interdisciplinary research method to study the luxury display space. By discussing the relationship between the narrative theory and luxury exhibition space, and combining with the cases of luxury brand exhibition space, this paper explores how to apply the narrative theory to the design of luxury exhibition space. Re-examining the spatial narrative from an interdisciplinary perspective is not only conducive to the emotional communication between brands and consumers, but also conducive to the value construction and promotion of luxury brands.

Failure Mechanism of a Slope Anti-Sliding Pile

2013 ◽  
Vol 639-640 ◽  
pp. 593-597
Author(s):  
Lin Chen ◽  
Yong Yao ◽  
Jiong Yang ◽  
Zhao Qiang Zhang
Keyword(s):  
Finite Element ◽  
Failure Mechanism ◽  
Reduction Method ◽  
Strength Reduction ◽  
Strength Reduction Method ◽  
Analysis Method ◽  
Feasible Method ◽  
Finite Element Software ◽  
Slope Excavation ◽  
Pile Design

According to finite element strength reduction method，the article has discussed the failure mechanism of anti-sliding pile by using finite element software MIDAS /GTS ，exploration report and anti-sliding pile design data.The comparative analysis shows that the failure of anti-siding pile is contributed by the slope excavation and rainwater.The analysis method and results can provide reference significance to other anti-sliding pile design.This paper also provide a feasible method for prediction of consequence in slope excavation.

Rock burst risk assessment in deep-buried underground caverns: a novel analysis method

2020 ◽  
Vol 13 (11) ◽  
Author(s):  
Zhiqiang Li ◽  
Yiguo Xue ◽  
Shucai Li ◽  
Daohong Qiu ◽  
Lewen Zhang ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Rock Burst ◽  
Analysis Method ◽  
Underground Caverns ◽  
Rock Burst Risk

Research on Electrical Characteristics of a Novel Balance Transformer with Asymmetrical Winding

2014 ◽  
Vol 536-537 ◽  
pp. 1523-1526 ◽  
Author(s):  
Yong Sheng Li ◽  
Yi Fa Sheng ◽  
Kai Yi Zhang ◽  
Bo Fan
Keyword(s):  
Magnetic Force ◽  
Short Circuit ◽  
Neutral Current ◽  
Force Balance ◽  
Analysis Method ◽  
Systematic Analysis ◽  
Negative Sequence ◽  
Transfer Equations ◽  
Zero Sequence ◽  
Negative Sequence Current

For problems of zero sequence current and negative sequence current of traction transformer in Electrified Railway, a novel balance transformer with asymmetrical windings was presented. By a systematic analysis method based on the magnetic force balance equations, winding connection equations, output-port equations and voltage transfer equations, the current relationships of the primary windings and secondary windings, the balance condition and the short circuit impedances (when the neutral current in the primary side is zero) were deduced, and the electric characteristics of the balance transformer was analyzed. Through the experimental model of balance transformer in simulation platform based on Matlab/Simulink, the electric characteristics of balance transformer and change law of zero sequence current and negative sequence current in different mode were researched. Correctness and feasibility of the theoretical analysis are verified through the simulation experiment.

Mechanism Analysis of Jet Drilling Rock by Numerical Simulation and Experiment

2012 ◽  
Vol 455-456 ◽  
pp. 400-405 ◽  
Author(s):  
Hua Lin Liao
Keyword(s):  
Failure Mechanism ◽  
Control Volume ◽  
Jet Impingement ◽  
Rock Failure ◽  
Water Jet ◽  
Rock Damage ◽  
Mechanism Analysis ◽  
Jet Impact ◽  
Breaking Mechanism ◽  
Pressure Water

Rock damage and breaking mechanism with water jet has been as yet a difficult problem due to jet high turbulence and complicacy of rock material. According to fluid-structure interaction (FSI) theory, the standard k-epsilon two equations and control volume method for water jet, and the elastic orthotropic continuum and finite element method for rocks, are employed respectively to establish a numerical analyzing model of high pressure water jet impinging on rock. A damage criterion, with non-dimensional coefficient to characterize rock damage, is also set up for analyzing rock failure mechanism with water jet. The process of jet impact on the rock is simulated, by using the FSI model, Micro failure mechanism test and analysis with scanning electron microscope (SEM) for rock failure surface by jets cutting were performed, whose results show that the micro-mechanism of rock failure due to water jet impingement is a brittle fracture in the condition of tensile and shearing stress. The test results also agree well with the numerical simulating analysis, which constructs a bridge between the micro-failure and macro-breaking mechanism of rock with water jets impact. The investigation affords a new method for studying the mechanism of rock failure underhigh pressure water jet impingement.

scholarly journals A Signature Analysis Method for IC Failure Analysis

1996 ◽  
Author(s):  
C.L. Henderson ◽  
J.M. Soden
Keyword(s):  
Failure Analysis ◽  
Failure Mechanism ◽  
Experiential Knowledge ◽  
New Method ◽  
Signature Analysis ◽  
Analysis Method ◽  
Dempster Shafer Theory ◽  
Shafer Theory

Abstract A new method of signature analysis is presented and explained. This method of signature analysis can be based on either experiential knowledge of failure analysis, observed data, or a combination of both. The method can also be used on low numbers of failures or even single failures. It uses the Dempster-Shafer theory to calculate failure mechanism confidence. The model is developed in the paper and an example is given for its use.

Development of Impact Resistant Optical Pick-Up for Portable Disk Products

2000 ◽  
Author(s):  
Yukihiro Iwata ◽  
Hiroto Inoue ◽  
Kenji Tsuji ◽  
Kazuhiko Hosokawa
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Failure Mechanism ◽  
Impact Analysis ◽  
Impact Resistance ◽  
Drop Impact ◽  
Optical Disk ◽  
Analysis Method ◽  
The Finite Element Method ◽  
Element Method

Abstract Concerning the development of portable optical disk products, higher impact resistant of the optical pick-up is required. Conventionally, cut and try measures, mainly based on experiment were applied to these problems, and it took much time and cost. Therefore, we developed this drop impact analysis of the optical pick-up based on the Finite Element Method (FEM) and clarified the failure mechanism of the suspension wire breaking with drop impact. With this analysis method, we also developed a new optical pick-up with a curved suspension wire, and realized much higher impact resistance.

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