Finite Element Investigation of Load Acting on the Hotspot Detector Located inside the Silo Caused by Material Discharge

Spontaneous ignition caused by material discharge inside a silo causes considerable economic damage. To prevent this, we developed a silo hotspot detector that can be installed inside the silo to monitor the temperature according to the depth of the silo. However, if the silo hotspot detector located inside the silo is destroyed because of the pressure and load generated during material discharge, it could lead to a larger accident. Therefore, the structural safety of the silo hotspot detector should be evaluated based on material discharge; currently, there is no particular method to achieve this. Therefore, in this study, the theoretical formula is obtained through Eurocode, and the pressure and tensile force acting on the silo hotspot detector are predicted through the finite element method (FEM) using the Coupled Eulerian–Lagrangian(CEL) method. These result were verified by comparing the load measurement data acting on the silo hotspot detector when the silo material was discharged. It was confirmed that simulation using the CEL method can sufficiently simulate the behavior of the silo according to material discharge. Additionally, we confirmed that the structural safety of the silo hotspot detector inside the silo can be evaluated through FEM.

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Wind Action Analysis on Different Structures of Photovoltaic Systems Installed on Flat Rooftops of Buildings

Renewable Energy and Power Quality Journal ◽

10.24084/repqj19.272 ◽

2021 ◽

Vol 19 ◽

pp. 263-268

Author(s):

D. G. N. M. Benchimol ◽

◽

J.L. Domingos ◽

A.J. Alves

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Computer Simulations ◽

Economic Damage ◽

Photovoltaic Systems ◽

The Finite Element Method ◽

Wind Action ◽

Wind Speeds ◽

Action Analysis ◽

Element Method

This paper aims to analyze the velocities and pressures that the wind exerts in three different configurations of photovoltaic systems installed on flat rooftops of buildings. The Finite Element Method is used to perform thirty computer simulations for different wind speeds and directions. From the obtained results analyzes of the maximum and minimum values of pressure and velocity on the surface of the structures and the building are performed. Thus, it is possible to identify the necessary precautions regarding materials and installation so that the structure is safe and does not result in accidents and material and economic damage.

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Spontaneous Ignition: Finite Element Solutions for Steady and Transient Conditions

Journal of Heat Transfer ◽

10.1115/1.3450212 ◽

1974 ◽

Vol 96 (3) ◽

pp. 398-404 ◽

Cited By ~ 17

Author(s):

C. A. Anderson ◽

O. C. Zienkiewicz

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Steady State ◽

Spontaneous Ignition ◽

Spatial Description ◽

The Finite Element Method ◽

Transient Conditions ◽

Geometrical Features ◽

Newton Raphson ◽

Isoparametric Finite Elements

Steady-state and transient ignition problems are solved by the finite element method. Discretized equations for the reactive heat equation are set down using Galerkin’s method. The steady-state discretized equations are solved by an incremental Newton-Raphson procedure using the Frank-Kamenetskii parameter as the incremented or “loading” variable. Critical values of the Frank-Kamenetskii parameter are given for both common and unusual shapes using isoparametric finite elements to describe the geometrical features of the bodies. The transient ignition problem is solved by using the finite element spatial description together with a midinterval time differencing scheme.

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New Pedestal for Pre-Tensioned Pre-Stressed Beam Construction

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.94-96.1838 ◽

2011 ◽

Vol 94-96 ◽

pp. 1838-1843

Author(s):

Deng Yuan Zhu ◽

Zhan Yong Yao ◽

Yong Wei Zhang

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Tensile Force ◽

The Self ◽

Capacity Analysis ◽

The Finite Element Method ◽

Practical Application ◽

Technical Feasibility ◽

Force Transfer ◽

New Type

Taking the advantages of groove pedestal and pier pedestal, a new type of pre-tensioned pedestal is constructed. The new pedestal makes full use of the deck (also the bottom formwork of the beam) to bear the tensile force so as to reduce the quantity of the pedestal construction. The new pedestal can adapt to variable geotechnical conditions by properly enlarge the arm of the turnover moment and the self-weight. The new pedestal is optimized through the bearing capacity analysis of the anti-overturning, the anti-slipping, the table anti-compressing, the force transfer plate, and the cross tie beams. The stress distribution of local bearing bracket is calculated by the finite element method so as to be reinforced accordingly. Based on practical application in some project, the new pedestal has the features of technical feasibility, security & reliability, affordability, and convenience in operation.

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Structural Safety Evaluations of Bogie Frames for Rubber-Tired AGT Vehichles

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.321-323.1491 ◽

2006 ◽

Vol 321-323 ◽

pp. 1491-1494

Author(s):

Yeon Su Kim ◽

Sung Hyuk Park ◽

Rag Gyo Jeong ◽

Tae Kon Lim

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Experimental Results ◽

Structural Safety ◽

The Finite Element Method ◽

Dynamic Stresses ◽

Test Track ◽

Element Method

This study was aimed at evaluating the structural safety of the new bogie frames for Korean-standardized rubber-tired AGT vehicles. The guidance frame and the rotation frame were designed according to Korean-standardized specifications for rubber-tired AGT vehicles, and their stresses were analyzed by using the finite element method. Based on the results of the analysis, dynamic stresses were measured while the train was running under various conditions in the test track. Analytical and experimental results verified the structural safety of the new bogie frames.

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Simulation of tuning graphene plasmonic behaviors by ferroelectric domains for self-driven infrared photodetector applications

Nanoscale ◽

10.1039/c9nr06508c ◽

2019 ◽

Vol 11 (43) ◽

pp. 20868-20875 ◽

Cited By ~ 1

Author(s):

Junxiong Guo ◽

Yu Liu ◽

Yuan Lin ◽

Yu Tian ◽

Jinxing Zhang ◽

...

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Interfacial Effect ◽

Infrared Photodetector ◽

The Finite Element Method ◽

Ferroelectric Domains ◽

Element Method

We propose a graphene plasmonic infrared photodetector tuned by ferroelectric domains and investigate the interfacial effect using the finite element method.

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