scholarly journals True colours or red herrings?: colour maps for finite-element analysis in palaeontological studies to enhance interpretation and accessibility

2021 ◽  
Vol 8 (11) ◽  
Author(s):  
Stephan Lautenschlager
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Colour Vision ◽  
Research Data ◽  
Computational Techniques ◽  
Discriminative Power ◽  
Element Analysis ◽  
Contour Plots ◽  
Stress And Deformation ◽  
External Forces

Accessibility is a key aspect for the presentation of research data. In palaeontology, new data is routinely obtained with computational techniques, such as finite-element analysis (FEA). FEA is used to calculate stress and deformation in objects when subjected to external forces. Results are displayed using contour plots in which colour information is used to convey the underlying biomechanical data. The Rainbow colour map is nearly exclusively used for these contour plots in palaeontological studies. However, numerous studies in other disciplines have shown the Rainbow map to be problematic due to uneven colour representation and its inaccessibility for those with colour vision deficiencies. Here, different colour maps were tested for their accuracy in representing values of FEA models. Differences in stress magnitudes (ΔS) and colour values (ΔE) of subsequent points from the FEA models were compared and their correlation was used as a measure of accuracy. The results confirm that the Rainbow colour map is not well suited to represent the underlying stress distribution of FEA models with other colour maps showing a higher discriminative power. As the performance of the colour maps varied with tested scenarios/stress types, it is recommended to use different colour maps for specific purposes.

Finite Element Analysis of Ground Imitating Tank

2005 ◽  
Author(s):  
Jiemin Liu ◽  
Guangtao Ma
Keyword(s):  
Finite Element Method ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Dead Weight ◽  
Element Analysis ◽  
Thin Walled ◽  
The Dead ◽  
Stress And Deformation ◽  
Inertia Forces ◽  
Element Method

A typical ground imitating tank is analyzed regarding it as the thin-walled structure composed of plates (skins) and beams (reinforcement) using finite element method (FEM). Through moving the location of reinforcements, make the skins close with the flanges of the reinforcements in order to imitate actually the connection of the skins and the reinforcements. The thickness of plates, the size and the geometry shape and the location of reinforcements are taken as parameters to be optimized. In calculation, not only consider effects of the oil-weight, the extra-pressure in tank and the dead weight of the tank on the stresses and displacements of the tank, but also analyze the effects of the inertia forces produced due to the rotation of the tank on the stresses and displacements. Displacement, stress and deformation distributions of the ground imitating tank under the three typical flying postures imitated are given.

260t Ladle Stress and Deformation Finite Element Analysis

2014 ◽  
Vol 936 ◽  
pp. 1886-1889
Author(s):  
Yan Ping Sun ◽  
De Chen Zhang ◽  
Ming Yang ◽  
Yuan Li
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Working Conditions ◽  
Structural Deformation ◽  
Analysis Software ◽  
Element Analysis ◽  
Strength And Stiffness ◽  
Stress And Deformation ◽  
Distribution Of Stress ◽  
Optimal Designing

In this paper, iron ladle stress and deformation has been accurately calculated using finite element analysis software ANSYS based on 260t iron ladle in standing, lifting, tipping working conditions. Distribution of stress field was obtained. The stiffness and strength of the iron ladle has been evaluated. The results show that the iron ladle in the standing, lifting and tipping working conditions, structural deformation is small, the strength and stiffness meet the requirements. This research extends the working life of 260t iron ladle. It provides theoretical basis for producing and using of the iron ladle and further optimal designing.

Finite Element Analysis on Hybrid City Bus Frame Based on ANSYS-Workbench14

2014 ◽  
Vol 662 ◽  
pp. 214-219 ◽  
Author(s):  
Ming Lei Wan ◽  
Zuo Qiang Dai ◽  
Hong Xin Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Element Analysis ◽  
Maximum Deformation ◽  
City Bus ◽  
Three Dimensional Modeling ◽  
New Energy ◽  
Inherent Frequency ◽  
Stress And Deformation

Abstract. For analyzing the frame whether meets actual driving needs, LCK6105PHENV-type hybrid (electric and gas) city bus frame as research object, using Solidworks12 and ANSYS-Workbench14 on frame, respectively, for the three-dimensional modeling and finite element analysis. Static analysis obtains frame’s stress and deformation results under the condition of bending and reversing (wheels dangling), modal analysis gets frame’s front 6 order vibration type, inherent frequency and the maximum deformation. Analyzing results shows that the frame basically can meet the design requirements, and in line with the actual needs of living and production. This research will provide references for optimization and improvement of new-energy Auto frame.

Numerical Simulation of Stress and Deformation on Heat Transfer

2011 ◽  
Vol 422 ◽  
pp. 842-845
Author(s):  
Xue Ping Wang ◽  
Ying Zhang ◽  
Pan Li ◽  
Zhen Wei Zhang
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Heat Exchange ◽  
Structure Design ◽  
Stress And Strain ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Stress And Deformation

This paper primarily simulates the heat exchange part’s stress and strain situation under the load of temperature and gravity and their coupling impact aiming at obtaining the stress and deformation distribution. The authors took advantage of the method of the finite element analysis to study the stress and strain situation. Through the analysis, each part of the transfer’s stress and strain can be calculated. The conclusion of this paper provides the basis for the further enhancement of the machine life and optimization of the structure design.

Design and Finite Element Analysis of Corrugated Plate Boarding Bridge

2010 ◽  
Vol 97-101 ◽  
pp. 3727-3730
Author(s):  
Wen Hui Wei ◽  
Yan Zhu
Keyword(s):  
Finite Element Method ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Analysis Software ◽  
Element Analysis ◽  
Design Requirements ◽  
Strength And Stiffness ◽  
Stress And Deformation ◽  
Element Method

With ANSYS finite element analysis software, finite element method is used to analyze the steel corrugated plate boarding bridge. Stress and deformation of the structure are obtained, and strength and stiffness are checked. Improvements are made on this basis to meet the design requirements.

sFEA: A Secure Finite Element Analysis Technique

2019 ◽  
Vol 19 (3) ◽  
Author(s):  
Siva C. Chaduvula ◽  
Mikhail J. Atallah ◽  
Jitesh H. Panchal
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Large Scale ◽  
Information Leakage ◽  
Computational Techniques ◽  
Computationally Efficient ◽  
Element Analysis ◽  
Computational Overhead ◽  
Analysis Technique ◽  
Material Information

Designers need a way to overcome information-related risks, including information leakage and misuse by their own collaborators during collaborative product realization. Existing cryptographic techniques aimed at overcoming these information-related risks are computationally expensive and impractical even for moderate problem sizes, and legal approaches such as nondisclosure agreements are not effective. The computational practicality problem is particularly pronounced for computational techniques, such as the finite element analysis (FEA). In this paper, we propose a technique that enables designers to perform simulations, such as FEA computations, without the need for revealing their information to anyone, including their design collaborators. We present a new approach, the secure finite element analysis approach, which enables designers to perform FEA without having to reveal structural/material information to their counterparts even though the computed answer depends on all the collaborators' confidential information. We build secure finite element analysis (sFEA) using computationally efficient protocols implementing a secure codesign (SCD) framework. One of our findings is that the direct implementation of using SCD framework (termed as naïve sFEA) suffers from lack of scalability. To overcome these limitations, we propose hybrid sFEA that implements performance improvement strategies. We document and discuss the experiments we conducted to determine the computational overhead imposed by both naïve and hybrid sFEA. The results indicate that the computational burden imposed by hybrid sFEA makes it challenging for large-scale FEA—our scheme significantly increases the problem sizes that can be handled when compared to implementations using previous algorithms and protocols, but large enough problem sizes will swamp our scheme as well (in some sense this is unavoidable because of the cubic nature of the FEA time complexity).

Sign in / Sign up

Export Citation Format

Share Document