scholarly journals Development of a 3D WebGIS Application for the Visualization of Seismic Risk on Infrastructural Work

2021 ◽  
Vol 11 (1) ◽  
pp. 22
Author(s):  
Mauro Mazzei ◽  
Davide Quaroni
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Seismic Risk ◽  
Three Dimensional ◽  
Seismic Action ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Technical Standards ◽  
Element Analysis ◽  
Italian Territory

In this paper we describe the potentialities of a tool for the visualization of experimental results directly on a three-dimensional model. The case study concerns the visualization of the results of a dynamic finite element analysis (FEA/FEM) applied to the calculation of seismic risk on works belonging to the Italian infrastructural heritage, specifically bridges, viaducts and overpasses. The project is based on finite element analysis performed on an exemplary set of eight structures located on the Italian territory, performed by means of the open-source software framework OpenSees, according to the guidelines indicated in the Technical Standards for Construction NTC08. The application created for this project is classifiable as a webGIS, since all data are georeferenced and visualized on a map through an application executed through a browser. The graphical interface displays the interested works on the map of the Italian territory and allows to select them by mouse click. Following the selection, a 3D rendering of the model of the work and the surrounding terrain is shown, in which the results of the analysis are represented using color gradients directly on the three-dimensional model. The necessary tools are present for the selection of the type of result and for the animation in real time of the response of the work to the seismic action. The 3D representation is freely navigable by the user due to intuitive tools of panning, rotation and zoom through mouse and keyboard. The application takes advantage of HTML5, CSS and Javascript to show graphical features such as Cartesian diagrams of accelerograms used in modal analysis.

scholarly journals Development of a 3D WebGIS Application for the Visualization of Seismic Risk on Infrastructural Work

2021 ◽  
Author(s):  
Mauro Mazzei ◽  
Davide Quaroni
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Seismic Risk ◽  
Three Dimensional ◽  
Seismic Action ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Technical Standards ◽  
Element Analysis ◽  
Italian Territory

In this paper we describe the potentialities of a tool for the visualization of experimental results directly on a three-dimensional model. The case study concerns the visualization of the results of a dynamic finite element analysis (FEA/FEM) applied to the calculation of seismic risk on works belonging to the Italian infrastructural heritage, specifically bridges, viaducts and overpasses. The project is based on finite element analysis performed on an exemplary set of 8 structures located on the Italian territory, performed by means of the open-source software framework OpenSees, according to the guidelines indicated in the Technical Standards for Construction NTC08. The application created for this project is classifiable as a webGIS, since all data are georeferenced and visualized on a map through an application executed through a browser. The graphical interface displays the interested works on the map of the Italian territory and allows to select them by mouse click. Following the selection, a 3D rendering of the model of the work and the surrounding terrain is shown, in which the results of the analysis are represented using color gradients directly on the three-dimensional model. The necessary tools are present for the selection of the type of result and for the animation in real time of the response of the work to the seismic action. The 3D representation is freely navigable by the user thanks to intuitive tools of panning, rotation and zoom through mouse and keyboard. The application takes advantage of HTML5, CSS and Javascript to show graphical features such as Cartesian diagrams of accelerograms used in modal analysis.

scholarly journals Development and Verification of Three-Dimensional Model of Femoral Bone: Finite Element Analysis

2019 ◽  
Vol 1372 ◽  
pp. 012014 ◽  
Author(s):  
Aishah Umairah Abd Aziz ◽  
Hong Seng Gan ◽  
Ahmad Kafrawi Nasution ◽  
Mohammed Rafiq Abdul Kadir ◽  
Muhammad Hanif Ramlee
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Femoral Bone ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Element Analysis

Torsional Strength Analysis of Output Shaft in Portal Axle Using Finite Element Analysis

2013 ◽  
Vol 284-287 ◽  
pp. 996-1000 ◽  
Author(s):  
Jong Boon Ooi ◽  
Xin Wang ◽  
Ying Pio Lim ◽  
Ching Seong Tan ◽  
Jee Hou Ho ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Experimental Results ◽  
Strength Analysis ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Element Analysis ◽  
Torsional Strength ◽  
Overall Performance

Portal axle unit is a gearbox unit installed on every end axles of the vehicle. It is installed to the vehicle to give higher ground clearance to enable vehicle to go over large obstacle when driving in off-road conditions. Shafts must be exceptionally tough and lightweight to improve the overall performance of the portal axle unit. In this paper, the shaft is analyzed in three-dimensional model and the stress of the shaft model is analyzed using finite element analysis (FEA). The FEA result is compared with experimental results.

scholarly journals A Finite Element Analysis to Compare Stress Distribution on Extra-Short Implants with Two Different Internal Connections

2019 ◽  
Vol 8 (8) ◽  
pp. 1103 ◽  
Author(s):  
García-Braz ◽  
Prados-Privado ◽  
Zanatta ◽  
Calvo-Guirado ◽  
Prados-Frutos ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Distribution ◽  
Axial Load ◽  
Three Dimensional ◽  
Dimensional Model ◽  
Stress Concentrations ◽  
Three Dimensional Model ◽  
Element Analysis ◽  
Short Implants

Background: The goal of this study was to analyze the stress distribution on two types of extra-short dental implants with 5 mm of length: An internal hexagon (IH) and morse taper connection (MT). Methods: The three-dimensional model was composed of trabecular and cortical bone, a crown, an extra-short dental implant and their components. An axial load of 150 N was applied and another inclined 30° with the same magnitude. Results: Stress concentrations on the IH implant are observed in the region of the first threads for the screw. However, in the MT implant the highest stress occurs at the edges of the upper implant platform. Conclusions: In view of the results obtained in this study the two types of prosthetic fittings present a good stress distribution. The Morse taper connections presented better behavior than the internal in both loading configurations.

A New Method Based on Finite Element Analysis for Crankshaft Strength

2012 ◽  
Vol 241-244 ◽  
pp. 2125-2128 ◽  
Author(s):  
Zhao Hua Xu ◽  
Zhi Qin Cui ◽  
Xiao Hua Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Dynamic Response ◽  
Optimization Design ◽  
Three Dimensional ◽  
New Method ◽  
Strength Analysis ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Element Analysis

This paper presents a new method for the analysis of the crankshaft strength by using the softwares of solidworks, matlab and ansys. Using the powerful modeling function of solidworks, the three-dimensional model of crankshaft was established. Applying the techniques of numerical operation, graph display and GUI of matlab, the simulation calculations of kinematics, dynamics of crankshaft was carried out and the force and torque of crankshaft was obtained. Making full use of finite element analysis function of ansys, the modal analysis and strength analysis of crankshaft were made. The results show that it is valid to take the respective advantages of solidworks, matlab and ansys to establish a simple and effective approach for the analysis of the crankshaft strength, which supplies foundation for the optimization design and dynamic response of crankshaft.

Finite Element Analysis of 2450 Type Close-Top Mill Housing

2012 ◽  
Vol 601 ◽  
pp. 173-176
Author(s):  
Xi Wang ◽  
Chang Liang Xu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Maximum Stress ◽  
Structural Parameters ◽  
Three Dimensional ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Element Analysis ◽  
Stress Contour ◽  
Maximal Displacement

Aimed at the maximum stress and distortion, the three-dimensional model of 2450 type close-top mill housing was simulated by finite element analysis, with the help of FEM software (ANSYS). The positions of dangerous sections and the maximum stress was shown in stress contour. The displacement and maximal displacement of various points was obtained in the deformation contour. The results show that different structural parameters was used for the key parts, and the influence of parameters to stress and deformations can be obtained, which can provide reference for the design of the related mill housing.

Finite Element Analysis and Comparison of Screw Pump Models in Uniform Pressure

2014 ◽  
Vol 490-491 ◽  
pp. 727-732
Author(s):  
You Jun Zhang ◽  
Chen Chang Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Equivalent Stress ◽  
Three Dimensional ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Element Analysis ◽  
Screw Pump ◽  
Single Screw ◽  
Comparison Results

This paper establishes the two-dimensional model, three-dimensional simplified model and three-dimensional of the single-screw pump stators ,and accomplishes their displacement and stress analysis in even pressure inside the stator using ANSYS software. This paper analyzes the comparison results of the combined displacement, equivalent stress and shear stress cloud in the XY plane of single screw pump stator’s three different models. The results manifest the significant differences of the three models for finite element analysis. This study validates that finite element analysis of three-dimensional model leads closer to the true situation.

scholarly journals Influence of restorative procedures on endodontically treated premolars: Finite element analysis of a CT-scan based three-dimensional model

2018 ◽  
Vol 37 (3) ◽  
pp. 493-500 ◽  
Author(s):  
Tatjana MARAVIĆ ◽  
Darko VASILJEVIĆ ◽  
Ivana KANTARDŽIĆ ◽  
Tijana LAINOVIĆ ◽  
Ognjan LUŽANIN ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Ct Scan ◽  
Three Dimensional ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Element Analysis

Finite Element Analysis on the Steel Transmission Pole

2012 ◽  
Vol 594-597 ◽  
pp. 808-811 ◽  
Author(s):  
Yan Hai Wang ◽  
Wei Jiang ◽  
Hong Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Traditional Method ◽  
Three Dimensional ◽  
The Finite Element Method ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Element Analysis ◽  
Strength And Deformation ◽  
Reliable Basis

At present, the finite element method is used to calculate the strength and deformation of the steel transmission pole less. Using ANSYS to model steel transmission pole, loading, analysis, the results show that, the traditional method of strength calculation and finite element analysis results are very close, the traditional method of deformation calculation and finite element analysis results has a certain bias. As long as the establishment of three-dimensional model of the steel transmission pole, the applied load and boundary conditions to meet the actual, finite element analysis can provide a more reliable basis for the design and verification of the steel transmission pole.

A Brief Study on Modeling and Finite Element Analysis of Car Rear Sub-Frame Based on Intelligent Materials

2011 ◽  
Vol 63-64 ◽  
pp. 482-485
Author(s):  
Ying Shi ◽  
Liang Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Point Cloud ◽  
Three Dimensional ◽  
Dimensional Model ◽  
Ansys Software ◽  
Three Dimensional Model ◽  
Element Analysis ◽  
Engineering Technology ◽  
Structural Improvement

This paper uses a rear sub-frame as the mother model and uses Reverse engineering technology to measure the rear sub-frame point cloud through ATOS non-contact scanners. Then, the point cloud‘s data processing is completed in Imageware. Finally, the point cloud is imported into UG NX4.0 software, after a series of surface cutting, chamfer suturing and sheet thickening; the sub-frame’s three-dimensional model is established. Besides, we complete the static finite element analysis and modal analysis of the sub-frame’s three-dimensional model through the ANSYS software. The results of analysis support theoretical basis for the structural improvement of sub-frame.

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