Geometry design and performance optimization of a terrestrial radioisotope thermoelectric generator based on finite element analysis

Abstract In this paper, we study the energy absorption of metamaterials composed of unit cells whose special geometry makes the cross-sectional area and the volume of the bodies generated from them constant (for the same enclosing box dimensions). After a parametric description of such special geometries, we analyzed by finite element analysis the deformation of the metamaterials we have designed during compression. We 3D printed the designed metamaterials from plastic to subject them to real compression. The results of the finite element analysis were compared with the real compaction results. Then, for each test specimen, we plotted its compaction curve. By fitting a polynomial to the compaction curves and integrating it (area under the curve), the energy absorption of the samples can be obtained. As a result of these investigations, we drew a conclusion about the relationship between energy absorption and cell number.

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Geometry design of vertical probe needle using mechanical testing and finite element analysis

International Journal of Precision Engineering and Manufacturing ◽

10.1007/s12541-014-0598-0 ◽

2014 ◽

Vol 15 (11) ◽

pp. 2335-2342 ◽

Cited By ~ 6

Author(s):

Hyock-Ju Kwon ◽

Jiwon Lee ◽

Bonghun Shin ◽

Soo Jeon ◽

Chung Su Han ◽

...

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Mechanical Testing ◽

Element Analysis ◽

Geometry Design ◽

Vertical Probe

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Finite Element Analysis of a Moving Packed-Bed Particle-to-sCO2 Heat Exchanger Testing and Performance

ASME 2020 14th International Conference on Energy Sustainability ◽

10.1115/es2020-1607 ◽

2020 ◽

Author(s):

Nicolas A. DeLovato ◽

Kevin J. Albrecht ◽

Clifford K. Ho

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Heat Exchanger ◽

Packed Bed ◽

Element Analysis ◽

Power Cycles ◽

Heat Exchanger Design ◽

Fea Model ◽

And Performance ◽

Particle Bed

Abstract A focus in the development of the next generation of concentrating solar power (CSP) plants is the integration of high temperature particle receivers with improved efficiency supercritical carbon dioxide (sCO2) power cycles. The feasibility of this type of system depends on the design of a particle-to-sCO2 heat exchanger. This work presents a finite element analysis (FEA) model to analyze the thermal performance of a particle-to-sCO2 heat exchanger for potential use in a CSP plant. The heat exchanger design utilizes a moving packed bed of particles in crossflow with sCO2 which flows in a serpentine pattern through banks of microchannel plates. The model contains a thermal analysis to determine the heat exchanger’s performance in transferring thermal energy from the particle bed to the sCO2. Test data from a prototype heat exchanger was used to verify the performance predictions of the model. The verification of the model required a multitude of sensitivity tests to identify where fidelity needed to be added to reach agreement between the experimental and simulated results. For each sensitivity test in the model, the effect on the performance is discussed. The model was shown to be in good agreement on the overall heat transfer coefficient of the heat exchanger with the experimental results for a low temperature set of conditions with a combination of added sensitives. A set of key factors with a major impact on the performance of the heat exchanger are discussed.

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Utilization of Finite Element Analysis in Design and Performance Evaluation of CFRP Bicycle Frames

Transactions of the Korean Society of Mechanical Engineers A ◽

10.3795/ksme-a.2013.37.1.121 ◽

2013 ◽

Vol 37 (1) ◽

pp. 121-127 ◽

Cited By ~ 5

Author(s):

Yong-Sung Lee ◽

Ki-Hoon Shin ◽

Seong-Kyun Cheong ◽

Ung-Jae Choi ◽

Young-Keun Kim ◽

...

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Performance Evaluation ◽

Element Analysis ◽

And Performance

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Optimization of the Frame and Performance Analysis of Solar Modules Based on Ansys Workbench and Solidworks

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.693.169 ◽

2016 ◽

Vol 693 ◽

pp. 169-173

Author(s):

Wei Hua Wei ◽

Ya Nan Zhu ◽

Tong Ming Xue ◽

Si Yuan Xie ◽

Cheng Rong Yuan ◽

...

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Defect Detection ◽

Three Dimensional ◽

Analysis Software ◽

Element Analysis ◽

Load Tests ◽

And Performance ◽

Factory Laboratory ◽

Ansys Workbench

Taking advantage of three-dimensional software Solidworks to model for solar modules and also using finite element analysis software Ansysworkbench to conduct the stress analysis and strength check of modules, to analyze the deformation of modules under certain loading conditions, to conduct load tests and defect detection (EL experiments) and to optimize encapsulation with aluminum frame combined with the factory laboratory. The results show that: the modules have no crack and other defects and their power attenuation does not exceed the specified value after the 2.0mm thickness aluminum frame was reduced to 1.7mm.

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Design and Performance Analysis of Vehicle Tyre Pattern Material Using Finite Element Analysis and ANSYS R16.2

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.777.426 ◽

2018 ◽

Vol 777 ◽

pp. 426-431

Author(s):

S. Nallusamy ◽

M. Rajaram Narayanan ◽

R. Suganthini Rekha

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Contact Pressure ◽

Equivalent Stress ◽

Frictional Stress ◽

Inflation Pressure ◽

Element Analysis ◽

Modeling Software ◽

Element Approach ◽

And Performance

As it stands now, rubber has been the main material used in the making of pneumatic vehicle tyres. Speed of the vehicle depends on many factors like steering geometry, inflation pressure, vehicle load, road temperature and environmental conditions. The main aim of this research is to develop a finite element approach and computationally evaluate the performance of a steady-state rolling tyre by changing the tyre tread patterns. The tyre normally composed of rubber and body-ply was investigated with regards to the effect of the inflation pressure. Tyre modeling using six different types of patterns was completed by using Creo parametric 3D modeling software and then the tyre was discretized into small elements through ANSYS R16.2. The rim area of the tyre was fixed and pressure was applied to the inside surface of the rim. Finite element analysis was completed by using ANSYS R16.2 and equivalent stress, contact stress and contact pressure were found out to identify the best tyre pattern. From the final results it was observed that, Pattern-I had good agreement of results as compared to other type of patterns which showed medium frictional stress and contact pressure.

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Finite Element Analysis of Stress Distributions on the Diamond Pick

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.487.184 ◽

2011 ◽

Vol 487 ◽

pp. 184-188

Author(s):

Shu Tao Huang ◽

Li Zhou ◽

J. Li

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Finite Element Modeling ◽

Lateral Pressure ◽

Normal Pressure ◽

Three Dimension ◽

Stress Distributions ◽

Element Analysis ◽

Modeling Software ◽

And Performance

Commercial finite element modeling software ANSYS was used to calculate the stress distributions of diamond pick at different loads. The three-dimension model of the pick was built and the direction and magnitude of load were varied to determine their effect on the stress distributions of diamond pick. The results show that the stresses located on the pick increase with the increasing of the normal and lateral pressure, and if the maximum normal pressure and lateral pressure are not higher than 480 kN and 150 kN, respectively, the diamond pick will not be damaged. The results obtained can provide available data for pick selection, design and performance.

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