Relevant bibliographies by topics / Finite element analysis preprocessing

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Finite element analysis preprocessing'

Author: Grafiati
Published: 4 June 2021
Last updated: 2 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Finite element analysis preprocessing.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Finite element analysis preprocessing"

1

Bin Talib, Mohamad Helmi, Nurulakmar Abu Husain, and Zaidi Farouk Bin Fauzi. "Preprocessing and Solving Finite Element Analysis for NVH Prediction." Applied Mechanics and Materials 471 (December 2013): 45–51. http://dx.doi.org/10.4028/www.scientific.net/amm.471.45.

Full text
Abstract:
Current vehicle development period has become shorter; therefore, virtual testing has been considered as vital to assist design decision at the early stage of the development. Over the last three decades, Finite Element Method (FEM) is widely used to predict the Noise and Vibration level of a vehicle. With the latest technology of Computer Aided Engineering (CAE) simulation, the calculation time taken for NVH analysis can be reduced from few days to only few hours. This paper presents current simulation technique for automotive development using Altair Hyperworks as preprocessing tool for vehicle modeling as well as application of NASTRAN as calculation solver. Normal Mode analysis is conducted on the Trimmed Body to investigate the natural frequency of the steering and the vehicle resonance. The result obtained is comparable with the actual prototype testing result to present the level of correlation. Coupling structural-acoustic analysis also conducted to predict the Noise Transfer Function (NTF) at the driver's ear.
APA, Harvard, Vancouver, ISO, and other styles
2

Shephard, Mark S., and Peter M. Finnigan. "Integration of geometric modeling and advanced finite element preprocessing." Finite Elements in Analysis and Design 4, no. 2 (August 1988): 147–62. http://dx.doi.org/10.1016/0168-874x(88)90003-0.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Rao, T. V. S. R. Appa, Nagesh R. Iyer, J. Rajasankar, and G. S. Palani. "Dynamic Response Analysis of Ship Hull Structures." Marine Technology and SNAME News 37, no. 03 (July 1, 2000): 117–28. http://dx.doi.org/10.5957/mt1.2000.37.3.117.

Full text
Abstract:
Finite-element modeling and use of appropriate analytical techniques play a significant role in producing a reliable and economic design for ship hull structures subjected to dynamic loading. The paper presents investigations carried out for the dynamic response analysis of ship hull structures using the finite-element method. A simple and efficient interactive graphical preprocessing technique based on the "keynode" concept and assembly-line procedure is used to develop the finite-element model of the hull structure. The technique makes use of the body plan of a ship hull to build the finite-element model through an interactive session. Stiffened plate/shell finite elements suitable to model the hull structure are formulated and used to model the structure. The finite elements take into account arbitrary placement of stiffeners in an element without increasing the number of degrees-of-freedom of the element. A three-dimensional finite-element model and a procedure based on the Bubnov-Galerkin residual approach are employed to evaluate the effects of interaction between the ship hull and water. Mode superposition technique is used to conduct the dynamic response analysis. The efficiency of the finite elements and the procedures is demonstrated through dynamic analysis of a submerged cantilever plate and a barge when both are subjected to sinusoidal forces. The dynamic responses exhibit expected behavior of the structure and a comparison with the results available in the literature indicate superior performance of the finite element and methodologies developed. Thus, the finite-element models and the procedures are found to be efficient and hence suitable for the dynamic analysis of similar structures.
APA, Harvard, Vancouver, ISO, and other styles
4

Kang, Ying Bin, Ying Bin Kang, Hui Xia Bian, and Jian Wei Zhang. "Study on 3-D Finite Element Analysis of Earth Dam." Advanced Materials Research 433-440 (January 2012): 3489–94. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.3489.

Full text
Abstract:
In this paper, the characteristics of the two software ANSYS and FLAC are analyzed. Using the powerful preprocessing capabilities of ANSYS, the earth dam is analyzed by finite element method. And then, the analysis model by the FISH language is imported into FLAC, with the constitutive model and the completed finite element model, the model analysis and processing are studied. Practical project is dam seepage and stability analysis to verify the reliability of the method.
APA, Harvard, Vancouver, ISO, and other styles
5

Wang, Yanzhong, Yang Liu, Wen Tang, and Peng Liu. "Parametric finite element modeling and tooth contact analysis of spur and helical gears including profile and lead modifications." Engineering Computations 34, no. 8 (November 6, 2017): 2877–98. http://dx.doi.org/10.1108/ec-06-2016-0203.

Full text
Abstract:
Purpose The finite element method has been increasingly applied in stress, thermal and dynamic analysis of gear transmissions. Preparing the models with different design and modification parameters for the finite element analysis is a time-consuming and highly skilled burden. Design/methodology/approach To simplify the preprocessing work of the analysis, a parametric finite element modeling method for spur and helical gears including profile and lead modification is developed. The information about the nodes and elements is obtained and exported into the finite element software to generate the finite element model of the gear automatically. Findings By using the three-dimensional finite element tooth contact analysis method, the effects of tooth modifications on the transmission error and contact stress of spur and helical gears are presented. Originality/value The results demonstrate that the proposed method is useful for verifying the modification parameters of spur and helical gears in the case of deformations and misalignments.
APA, Harvard, Vancouver, ISO, and other styles
6

Hadim, A., A. T. Chang, A. Chu, and A. Yskamp. "An Interfacing Software Package for Thermal Analysis: Application to Microelectronics." Journal of Electronic Packaging 111, no. 1 (March 1, 1989): 54–60. http://dx.doi.org/10.1115/1.3226509.

Full text
Abstract:
A software package called: INterfacing Software for Thermal ANalysis (INSTAN) is developed to interface finite element general purpose programs with finite-difference thermal network analyzers for detailed analysis of complex thermal problems. The finite element mesh is used to generate the thermal network representation of the problem. INSTAN performs automatically the thermal network calculations and generates a complete input file for the thermal analysis program. The INSTAN software package is a powerful modeling tool which uses the preprocessing and postprocessing features available in a finite element program. It has also the flexibility and heat transfer calculation capabilities of a finite-difference program. It can handle problems with three-dimensional irregular geometries, time and temperature dependent properties, and anisotropic materials. The software possesses enhanced capabilities that make it suitable for thermal analysis of microelectronic equipment.
APA, Harvard, Vancouver, ISO, and other styles
7

Peng, Fan Fen, Shu Xian Zheng, and Jia Li. "Finite Element Analysis of the Bionic Tissue Engineering Scaffold for the Defect Cranium." Applied Mechanics and Materials 184-185 (June 2012): 222–26. http://dx.doi.org/10.4028/www.scientific.net/amm.184-185.222.

Full text
Abstract:
The relationship between the porosity and the mechanical property was still a bottle-neck in bone tissue engineering scaffold. Porosity increasing may reduce the scaffold strength. In order to solve the contradiction, the idea of enhancing the mechanical properties by controlling the scaffold porosity was proposed in this paper. Using reverse engineering technology, 5 different porosity cranium scaffolds were first established. Their FE models were built through FE surface preprocessing and volume fitted meshing. According to results of static analysis, the displacements and stresses of the 5 porosity scaffolds were compared and discussed and it indicated that the 36% porosity bionic scaffold have good porous level and mechanical properties.
APA, Harvard, Vancouver, ISO, and other styles
8

Tamma, Kumar K. "Computer graphics aided geometric modeling and mesh generation schemes for preprocessing and finite element analysis." Engineering with Computers 3, no. 3 (September 1988): 157–65. http://dx.doi.org/10.1007/bf01349627.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Zhang, Lei, Guoxin Zhang, Yi Liu, and Hailin Pan. "Mesh Partitioning Algorithm Based on Parallel Finite Element Analysis and Its Actualization." Mathematical Problems in Engineering 2013 (2013): 1–6. http://dx.doi.org/10.1155/2013/751030.

Full text
Abstract:
In parallel computing based on finite element analysis, domain decomposition is a key technique for its preprocessing. Generally, a domain decomposition of a mesh can be realized through partitioning of a graph which is converted from a finite element mesh. This paper discusses the method for graph partitioning and the way to actualize mesh partitioning. Relevant softwares are introduced, and the data structure and key functions of Metis and ParMetis are introduced. The writing, compiling, and testing of the mesh partitioning interface program based on these key functions are performed. The results indicate some objective law and characteristics to guide the users who use the graph partitioning algorithm and software to write PFEM program, and ideal partitioning effects can be achieved by actualizing mesh partitioning through the program. The interface program can also be used directly by the engineering researchers as a module of the PFEM software. So that it can reduce the application of the threshold of graph partitioning algorithm, improve the calculation efficiency, and promote the application of graph theory and parallel computing.
APA, Harvard, Vancouver, ISO, and other styles
10

Yang, Seung H., Kwang S. Woo, Jeong J. Kim, and Jae S. Ahn. "Finite Element Analysis of RC Beams by the Discrete Model and CBIS Model Using LS-DYNA." Advances in Civil Engineering 2021 (February 22, 2021): 1–9. http://dx.doi.org/10.1155/2021/8857491.

Full text
Abstract:
There are several techniques to simulate rebar reinforced concrete, such as smeared model, discrete model, embedded model, CLIS (constrained Lagrange in solid) model, and CBIS (constrained beam in solid) model. In this study, however, the interaction between the concrete elements and the reinforcement beam elements is only simulated by the discrete model and CBIS (constrained beam in solid) model. The efficiency and accuracy comparisons are investigated with reference to the analysis results by both models provided by LS-DYNA explicit finite element software. The geometric models are created using LS-PrePost, general purpose preprocessing software for meshing. The meshed models are imported to LS-DYNA where the input files are then analyzed. Winfrith and CSCM concrete material options are employed to describe the concrete damage behavior. The reinforcement material model is capable of isotropic and kinematic hardening plasticity. The load versus midspan deflection curves of the finite element models correlate with those of the experiment. Under the conditions of the same level of accuracy, the CBIS model is evaluated to have the following advantages over the discrete model. First, it has the advantage of reducing the time required for FE modeling; second, saving computer CPU time due to a reduction in total number of nodes; and third, securing a good aspect ratio of concrete elements.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Finite element analysis preprocessing"

1

Lau, Sum-hung. "Adaptive FEM preprocessing for electro magnetic field analysis of electric machines /." Hong Kong : University of Hong Kong, 1995. http://sunzi.lib.hku.hk/hkuto/record.jsp?B17505823.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

劉心雄 and Sum-hung Lau. "Adaptive FEM preprocessing for electro magnetic field analysis of electric machines." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1995. http://hub.hku.hk/bib/B31212451.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Malone, J. Bruce. "Two-Refinement by Pillowing for Structured Hexahedral Meshes." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3495.

Full text
Abstract:
A number of methods for adaptation of existing all-hexahedral grids by localized refinement have been developed; however, none ideally fit all refinement needs. This thesis presents the structure to a method of two-refinement developed for conformal, structured, all-hexahedral grids that offers flexibility beyond what has been offered to date. The method is fundamentally based on pillowing pairs of sheets of hexes. This thesis also suggests an implementation of the method, shows the results of examples refined using it and compares these results to results from implementing three-refinement on the same examples.
APA, Harvard, Vancouver, ISO, and other styles
4

Margetts, Lee. "Parallel finite element analysis." Thesis, University of Manchester, 2002. http://www.manchester.ac.uk/escholar/uk-ac-man-scw:70784.

Full text
Abstract:
Finite element analysis is versatile and used widely in a range of engineering andscientific disciplines. As time passes, the problems that engineers and designers areexpected to solve are becoming more computationally demanding. Often theproblems involve the interplay of two or more processes which are physically andtherefore mathematically coupled. Although parallel computers have been availablefor about twenty years to satisfy this demand, finite element analysis is still largelyexecuted on serial machines. Parallelisation appears to be difficult, even for thespecialist. Parallel machines, programming languages, libraries and tools are used toparallelise old serial programs with mixed success. In some cases the serialalgorithm is not naturally suitable for parallel computing. Some argue that rewritingthe programs from scratch, using an entirely different solution strategy is a betterapproach. Taking this point of view, using MPI for portability, a mesh free elementby element method for simple data distribution and the appropriate iterative solvers,a general parallel strategy for finite element analysis is developed and assessed.
APA, Harvard, Vancouver, ISO, and other styles
5

Larsson, Jesper. "Spring Element Evaluation Using Finite Element Analysis." Thesis, Högskolan i Jönköping, Tekniska Högskolan, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-45837.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Xiao, Dong Wen. "Efficiency analysis on element decomposition method for stochastic finite element analysis." Thesis, University of Macau, 2000. http://umaclib3.umac.mo/record=b1636334.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Wong, S.-W. "Element-by-element methods in transient analysis." Thesis, University of Manchester, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383902.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Irfanoglu, Bulent. "Boundary Element-finite Element Acoustic Analysis Of Coupled Domains." Phd thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12605360/index.pdf.

Full text
Abstract:
This thesis studies interactions between coupled acoustic domain(s) and enclosing rigid or elastic boundary. Boundary element-finite element (BE-FE) sound-structure interaction models are developed by coupling frequency domain BE acoustic and FE structural models using linear inviscid acoustic and elasticity theories. Flexibility in analyses is provided by discontinuous triangular and quadrilateral elements in the BE method (BEM), and a rectangular plate and a triangular shell element in the FE method (FEM). An analytical formulation is developed for an extended fundamental sound-structure interaction problem that involves locally reacting sound absorptive treatment on interior elastic boundary. This new formulation is built upon existing analytical solutions for a configuration known as the cavity-backed-plate problem. Results from developed analytical formulation are compared against those from independent BE-FE analyses. Analytical and BE-FE analysis results for a selection of cavity-plate(s) interaction cases are given. Single- and multi-domain BE analyses of cavity-Helmholtz resonator interaction are provided as an alternative to modal method of acoustoelasticity. A discrete-form of the existing BE acoustic particle velocity formulation is presented and demonstrated on a basic case study. Both the existing and the discretized BE acoustic particle velocity formulations could be utilized in acoustic studies. A selection of case studies involving fundamental configurations are studied both analytically and computationally (by BE or BE-FE methods). These studies could provide a basis for benchmark case development in the field of acoustics.
APA, Harvard, Vancouver, ISO, and other styles
9

Jacobs, Ralf Theo. "Finite element-boundary element analysis of conformal microstrip antennas." Thesis, Heriot-Watt University, 2001. http://hdl.handle.net/10399/531.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Risa, Adrian Opheim. "Finite element analysis of marine umbilical." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for marin teknikk, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-15368.

Full text
Abstract:
Background: Marine umbilicals play a vital role in oil and gas production fields. The oil and gas industry is in constant change, as the resources in the reservoirs are ever decreasing. Today oil and gas exploration takes place at increasing depths, and in harsher environments. This means that components like marine umbilicals are getting more advanced. Thus accurate structural analysis is important. The focus in this thesis is an umbilical consisting of 19 copper conductors. The goal is to model it in ABAQUS, and compare the results with laboratory testing. Results: Stress distribution and fatigue calculations were the main focus. Ultimately, it was proven that ABAQUS was able to represent the umbilical's general behavior. However, due to computational limitations and limits in the material model, the result proved inaccurate. In particular, values for axial stress and strain, exceeds the expected values. Conclusion: The model was able to represent the general behavior from the laboratory results. Effort should be made in the future to overcome the computational problems, and the material model should be revised.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Finite element analysis preprocessing"

1

Lakṣmīnarasayya, Ji. Finite element analysis. Hyderabad [India]: BS Publications, 2008.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Szabó, Barna. Finite element analysis. NewYork: Wiley, 1991.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Szabo, B. A. Finite element analysis. New York: Wiley, 1991.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Finite element structural analysis. Englewood Cliffs, N.J: Prentice-Hall, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

R, Mitchell A., ed. Finite element analysis and applications. Chichester [West Sussex]: J. Wiley, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Stasa, Frank L. Applied finite element analysis forengineers. New York: Harcourt Brace Jovanovich, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Finite element analysis on microcomputers. New York, NY: McGraw-Hill, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Baran, Nicholas. Finite element analysis on microcomputers. New York: McGraw-Hill, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Finite element analysis for undergraduates. London: Academic Press, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Szabó, Barna, and Ivo Babuška. Introduction to Finite Element Analysis. Chichester, UK: John Wiley & Sons, Ltd, 2011. http://dx.doi.org/10.1002/9781119993834.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Finite element analysis preprocessing"

1

Atkinson, Kendall, and Weimin Han. "Finite Element Analysis." In Texts in Applied Mathematics, 383–422. New York, NY: Springer New York, 2009. http://dx.doi.org/10.1007/978-1-4419-0458-4_10.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Yancey, Bob. "Finite Element Analysis." In 64th Porcelain Enamel Institute Technical Forum: Ceramic Engineering and Science Proceedings, Volume 23, Issue 5, 23–40. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470294765.ch4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Altenbach, Holm, Johannes Altenbach, and Wolfgang Kissing. "Finite Element Analysis." In Mechanics of Composite Structural Elements, 377–434. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-08589-9_11.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Behrens, Bernd-Arno. "Finite Element Analysis." In CIRP Encyclopedia of Production Engineering, 1–6. Berlin, Heidelberg: Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-642-35950-7_16824-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Engel, Peter A. "Finite Element Analysis." In Structural Analysis of Printed Circuit Board Systems, 21–34. New York, NY: Springer New York, 1993. http://dx.doi.org/10.1007/978-1-4612-0915-7_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Atkinson, Kendall, and Weimin Han. "Finite Element Analysis." In Texts in Applied Mathematics, 281–312. New York, NY: Springer New York, 2001. http://dx.doi.org/10.1007/978-0-387-21526-6_9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Weik, Martin H. "finite element analysis." In Computer Science and Communications Dictionary, 609. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_7184.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Hill, Geoff. "Finite Element Analysis." In Loudspeaker Modelling and Design, 25–27. New York, NY: Routledge, [2019]: Routledge, 2018. http://dx.doi.org/10.4324/9781351116428-8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Monthei, Dean L. "Finite Element Analysis." In Electronic Packaging and Interconnects Series, 141–50. Boston, MA: Springer US, 1999. http://dx.doi.org/10.1007/978-1-4615-5111-9_8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Yetmez, Mehmet. "Finite Element Analysis." In Musculoskeletal Research and Basic Science, 51–59. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-20777-3_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Finite element analysis preprocessing"

1

Chang, Li. "Simulation Analysis of Finite Element Preprocessing based on HyperMesh." In 2020 International Wireless Communications and Mobile Computing (IWCMC). IEEE, 2020. http://dx.doi.org/10.1109/iwcmc48107.2020.9148051.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Prabhakar R., Gudla, Hubert J., Montas, and Adel Shirmohamaddi. "Stochastic-Wavelet Preprocessing of Heterogeneous Data for Finite Element Analysis." In 2004, Ottawa, Canada August 1 - 4, 2004. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2004. http://dx.doi.org/10.13031/2013.17085.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Kumar, Goldy, and Vadim Shapiro. "Reduced Material Model of Composite Laminates for 3D Finite Element Analysis." In ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/detc2014-35230.

Full text
Abstract:
Laminate composites are widely used in automotive, aerospace, medical, and increasingly in consumer industries, due to their reduced weight, superior structural properties and cost-effectiveness. However, structural analysis of complex laminate structures remains challenging. 2D finite element methods based on plate and shell theories may be accurate and efficient, but they generally do not apply to the whole structure, and require identification and preprocessing (dimensional reduction) of the regions where the underlying assumptions hold. Differences in and limitations of theories for thin/thick plates and shells further complicate modeling and simulation of composites. Fully automated structural analysis using 3D elements with sufficiently high order basis functions is possible in principle, but is rarely practiced due to the significant increase in computational integration cost in the presence of a large number of laminate plies. We propose to replace the actual layup of the laminate structure by a simplified material model, allowing for a substantial reduction of the computational cost of 3D FEA. The reduced model, under the usual assumptions made in lamination theory, has the same constitutive relationship as the corresponding 2D plate model of the original laminate, but requires only a small fraction of computational integration costs in 3D FEA. We describe implementation of 3D FEA using the reduced material model in a meshfree system using second order B-spline basis functions. Finally, we demonstrate its validity by showing agreement between computed and known results for standard problems.
APA, Harvard, Vancouver, ISO, and other styles
4

Shabana, Ahmed A., Ashraf M. Hamed, Abdel-Nasser A. Mohamed, Paramsothy Jayakumar, and Michael D. Letherwood. "Limitations of B-Spline Geometry in the Finite Element/Multibody System Analysis." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-47168.

Full text
Abstract:
This paper examines the limitations of using B-spline representation as an analysis tool by comparing its geometry with the nonlinear finite element absolute nodal coordinate formulation (ANCF) geometry. It is shown that while both B-spline and ANCF geometries can be used to model non-structural discontinuities using linear connectivity conditions, there are fundamental differences between B-spline and ANCF geometries. First, while B-spline geometry can always be converted to ANCF geometry, the converse is not true; that is, ANCF geometry cannot always be converted to B-spline geometry. Second, because of the rigid structure of the B-spline recurrence formula, there are restrictions on the order of the parameters and basis functions used in the polynomial interpolation; this in turn can lead to models that have significantly larger number of degrees of freedom as compared to those obtained using ANCF geometry. Third, in addition to the known fact that B-spline does not allow for straight forward modeling of T-junctions, B-spline representation cannot be used in a straight forward manner to model structural discontinuities. It is shown in this investigation that ANCF geometric description can be used to develop new spatial chain models governed by linear connectivity conditions which can be applied at a preprocessing stage allowing for an efficient elimination of the dependent variables. The modes of the deformations at the definition points of the joints that allow for rigid body rotations between ANCF finite elements are discussed. The use of the linear connectivity conditions with ANCF spatial finite elements leads to a constant inertia matrix and zero Coriolis and centrifugal forces. The fully parameterized structural ANCF finite elements used in this study allow for the deformation of the cross section and capture the coupling between this deformation and the stretch and bending. A new chain model that employs different degrees of continuity for different coordinates at the joint definition points is developed in this investigation. In the case of cubic polynomial approximation, C1 continuity conditions are used for the coordinate line along the joint axis; while C0 continuity conditions are used for the other coordinate lines. This allows for having arbitrary large rigid body rotation about the axis of the joint that connects two flexible links. Numerical examples are presented in order to demonstrate the use of the formulations developed in this paper.
APA, Harvard, Vancouver, ISO, and other styles
5

Ransom, David. "Leveraging the Strengths of Commercial Finite Element Modeling Codes and Custom Engineered Software to Solve Atypical Rotordynamic Problems." In ASME Turbo Expo 2008: Power for Land, Sea, and Air. ASMEDC, 2008. http://dx.doi.org/10.1115/gt2008-50363.

Full text
Abstract:
Commercial finite element modeling codes have evolved over the past few decades into very user friendly environments, easily handling the many complications of finite element simulation. The significant steps of model generation (preprocessing), problem solution (analysis) and results viewing (post-processing) are easily handled for most of the typical finite element problems. However, there are still occasions when the necessary solution requirements fall outside the capabilities of any single finite element code. In this case, it is beneficial to the engineer to use some of the features of the commercial code, filing in the gaps with custom engineered software. This is especially true for the field of rotordynamics. In this paper, several of the complications involved in the finite element simulation of rotordynamics are discussed, and methods for leveraging the strengths of both commercial and custom engineered software are provided. The objective is to assist the practical engineer in the simulation of more complicated rotordynamic systems, including transient non-linear systems and three-dimensional coupled rotor-structure interaction systems.
APA, Harvard, Vancouver, ISO, and other styles
6

Micheal, Amany G. B., and Yehia A. Bahei-El-Din. "Finite Element Simulation of PZT-Aided Interrogation of Composite Laminates Exhibiting Damage." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-66001.

Full text
Abstract:
Piezoelectricity has proved effective in capturing changes in structures caused by various damage mechanisms. In one approach, piezoelectric wafer active sensors (PWAS) are mounted on the surface of the host structure and utilized as both actuators and sensors to interrogate the structure and monitor its health. This is achieved by subjecting the PWAS to a transient electric pulse and reading the resulting voltage. Changes in the stiffness of the substrate due to structural damage affect the response of the PWAS, which could be correlated to integrity of the structure. Applying this technique to fibrous composite laminates encounters particular challenges due to the presence of multiple damage mechanisms in one or more plies. Simulation of the procedure using advanced computational techniques and material models helps in understanding the reliability of PWAS in sensing damage in fibrous laminates. This paper combines the finite element method and micromechanical modeling of composites to simulate damage detection using surface mounted PWAS. The finite element solution is obtained by the ABAQUS code with user defined material properties, which reflect the underlying damage modes. The latter are obtained in a preprocessing exercise in which the composite laminate is first subjected to a given mechanical load level and the damage mechanisms in the plies are identified using transformation field analysis, TFA (Bahei-El-Din el al., 2010). In the present work, the Mori-Tanaka averaging model is utilized within the TFA and local failure modes, which are a function of the matrix average stresses were specified. Material properties of the individual plies, which correspond to the damage mechanisms introduced at the given load level are then determined numerically in terms of the overall moduli and utilized in the finite element solution of the laminate using ABAQUS. The methodology is applied to a quasi-isotropic, symmetric laminated beam subjected to bending. In the finite element simulation, each fibrous composite ply of the laminated beam is modelled using shell elements while the surface mounted PWAS are modeled with 3D solid elements. The bending moment is applied to the beam intermittently to allow interrogation of the laminate by applying a transient electric pulse to the PWAS and allowing the beam to vibrate for a very short period of time, which is followed by reading the voltage response. The voltage readings are correlated to the damage mechanisms in the plies.
APA, Harvard, Vancouver, ISO, and other styles
7

Spainhour, Lisa K., William J. Rasdorf, Edward M. Patton, Bruce P. Burns, and Craig S. Collier. "A Computer-Aided Analysis System With DBMS Support for Fiber-Reinforced Thick Composite Materials." In ASME 1991 International Computers in Engineering Conference and Exposition. American Society of Mechanical Engineers, 1991. http://dx.doi.org/10.1115/edm1991-0180.

Full text
Abstract:
Abstract The broad scope of the research described herein is the integration of several components of engineering software using a relational database. More specifically, a conceptual finite element material preprocessing system for fiber-reinforced composite materials was studied. In this computer-aided analysis (CAA) system, a materials database is integrated with several software components, including commercially available finite element analysis (FEA) programs and preprocessors, and tools for the design of laminated composite materials. The focus of the system is on the integration of two- and three-dimensional composite materials data into several finite element analysis programs. Particular attention is given to analysis and design of components and structures using thick composite materials. Many engineering applications exist for thick composite structures; however, they have received less critical attention than the thin composite structures often used in aerospace applications. The primary objective of the composites analysis system is to enhance data transfer between and interaction among several engineering software programs with a minimum of user interaction. This paper describes a specific implementation of a computer-aided analysis system that achieves this objective, detailing the need for the system and describing each of its components, including a composite materials database. The capabilities of the integrated system are discussed, including tasks such as composite laminate design, data entry, report generation, and interface file generation, performed in support of the finite element analysis capability. A major focus of the paper is on the twofold role of the materials database in the analysis system, as both a passive data repository and as a dynamic data transfer mechanism. The use of interface programs and direct integration techniques are discussed in the context of passing materials data between the user and the database, and between the database and the various system components or application programs.
APA, Harvard, Vancouver, ISO, and other styles
8

Dumartineix, Cécile, Benjamin Chouvion, Fabrice Thouverez, and Marie-Océane Parent. "An Efficient Approach for the Frequency Analysis of Non-Axisymmetric Rotating Structures: Application to a Coupled Bladed Bi-Rotor System." In ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/gt2018-75461.

Full text
Abstract:
The improvement of efficiency in the design of turbomachines requires a reliable prediction of the vibrating behavior of the whole structure. The simulation of blades vibrations is decisive and this is usually based on elaborated finite element model restricted to the bladed-disk. However the blades dynamic behavior can be strongly affected by interactions with other parts of the engine. Global dynamic studies that consider these other parts are required but usually come with a high numerical cost. In the case of a bi-rotor architecture, two coaxial rotors with different rotating speed can be coupled with a bearing system. The mechanical coupling between the shafts generates energy exchange that alters the dynamic behavior of the blades. The equations of motion of the whole structure that take into account the coupling contain periodic time-dependent coefficients due to the difference of rotational speed between both rotors. Equations of this kind, with variable coefficients, are typically difficult to solve. This study presents a preprocessing method to guarantee the elimination of time-dependent coefficients in the bi-rotor equations of motion. This method is tested with a simplified finite element model of two bladed-disks coupled with linear stiffnesses. We obtain accurate results when comparing frequency analysis of preprocessed equations with time-integration resolution of the initial set of equations. The developed methodology also offers a substantial time saving.
APA, Harvard, Vancouver, ISO, and other styles
9

Shao, Hongwei, Ying He, and Lizhong Mu. "Numerical Analysis of Temperature Distribution in a Three-Dimensional Image-Based Hand Model." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22559.

Full text
Abstract:
In the present study, a simulation has been developed to investigate the blood and temperature distribution in the human hand. The simulation consists of image-based mesh generation, blood flow modeling in large vessels, and finite element analysis of heat transfer in tissues based on the porous media theory. In order to reconstruct a real geometric mesh model of the human hand, sequential MR images of a volunteer’s hand was taken firstly. Furthermore, a MATLAB program was developed to detect the edge information of the target by applying several image preprocessing operators. Finally, a FORTRAN program based on the transfinite interpolation method was developed to generate mesh from the preprocessed images automatically, and the positions of simplified bones and vessels were set according to the anatomic structure. The blood flow in large vessels adopted in this study was provided from the one-dimensional simulation of blood circulation in the upper limb, which was completed by He [1]. On the other hand, blood flow perfused in solid tissues through the micro vessels was expressed by Darcy model. The heat transfer in tissues was described by the energy equation for porous media with assuming that a local equilibrium was achieved between the blood and tissue phase. The primary results for the distribution of the blood flow perfused in tissues and temperature were obtained in this study, and they were similar to the real state of the human hand. The improvement of this simulation will be the next work.
APA, Harvard, Vancouver, ISO, and other styles
10

Jadhav, Mahesh R., and Uday A. Dabade. "Modelling and Simulation of Al/SiCp MMCs During Hot Machining." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-66071.

Full text
Abstract:
Metal Matrix Composites (MMCs) give higher strength and stiffness, greater wear resistance over a wide range of conditions, making them an option in replacing conventional materials for many engineering applications. These materials are difficult-to-machine due to high hardness and abrasive nature of reinforcing elements like silicon carbide, aluminum oxide, and boron carbide particles. High tool wear and pits, cavities on machined surface due to fracturing of reinforcements puts certain constraints on MMCs for experimentation. Similarly, the experimental or analytical approaches are not able to explore the behavior of MMCs during machining due to the complex deformation and interactions with particles, matrix and tool. The numerical approach is very important tool to simulate the machining process of MMCs in which plastic deformations, modelling the plasticity are involved. FEM analysis eliminates the restrictions of experimental approach such as control of large process parameters, the exhaustive material characterization and the trial-and-error approach which is expensive and time consuming procedure to determine the mechanical responses. These advantages of finite element method make this approach more popular. It has come up as the main tool of simulation of metal cutting processes to calculate stress, strain, strain-rate, temperature distributions, tool wear, cutting forces and chip formation. In this paper, an attempt is made to present a 3D oblique finite element modelling using Deform software. In Deform, FEM analysis carried out by using steps are preprocessing, simulation and post-processing of data for the established machining process. Deform 3D is a robust simulation tool that uses the finite element model to complex machining process in three dimensions. It has been used in simulations of two types of Al/SiCp/220 MMCs with 10 and 30% of SiC reinforcement particles. These materials are considered as perfectly plastic and its shape was taken as a curved model by means of coated carbide insert as a rigid body. A simulation scheme involves size and weight fraction of reinforcement, speed, feed rate, depth of cut and preheating temperature. Four levels of speed, feed rate, depth of cut and preheating temperature are chosen. Designs of experiments are done by Taguchi’s design of experiments (DOE). For four level four parameters, suitable L16 orthogonal arrays are selected. Based on design of experiments, a machining simulation and analysis are carried out using Deform 3D, software. Obtained finite element simulation results are found to be closely match within 10 to 15% variation with the experimental results during hot machining of Al/SiCp/220 metal matrix composites (MMCs).
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Finite element analysis preprocessing"

1

Blanco, Alejandro G. Towards Intelligent Finite Element Analysis. Fort Belvoir, VA: Defense Technical Information Center, September 1990. http://dx.doi.org/10.21236/ada228672.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Peterson, Jerrod P. Diffusion of Designerly Finite Element Analysis. Office of Scientific and Technical Information (OSTI), May 2015. http://dx.doi.org/10.2172/1504608.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Hopkins, Matthew Morgan, Peter Randall Schunk, Thomas A. Baer, Randy A. Mrozek, Joseph Ludlow Lenhart, Rekha Ranjana Rao, Robert Collins, and Lisa Ann Mondy. Finite element analysis of multilayer coextrusion. Office of Scientific and Technical Information (OSTI), September 2011. http://dx.doi.org/10.2172/1029813.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Wands, R. Finite Element Analysis of IH Module. Office of Scientific and Technical Information (OSTI), December 1986. http://dx.doi.org/10.2172/1030730.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Rudland, D., and R. Luther. EC Vacuum Vessel Finite Element Analysis. Office of Scientific and Technical Information (OSTI), February 1992. http://dx.doi.org/10.2172/1031155.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Spencer, Nathan. Impeller deflection and modal finite element analysis. Office of Scientific and Technical Information (OSTI), October 2013. http://dx.doi.org/10.2172/1096476.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

TEWKSBURY, D. A. VALIDATION OF ANSYS FINITE ELEMENT ANALYSIS SOFTWARE. Office of Scientific and Technical Information (OSTI), August 2004. http://dx.doi.org/10.2172/828016.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

TEWKSBURY, D. A. VALIDATION OF ANSYS FINITE ELEMENT ANALYSIS SOFTWARE. Office of Scientific and Technical Information (OSTI), June 2004. http://dx.doi.org/10.2172/825366.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Wands, R. Finite Element Analysis of EC Insert Plug. Office of Scientific and Technical Information (OSTI), April 1986. http://dx.doi.org/10.2172/1030006.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

HAMM, E. R. VALIDATION OF ANSYS FINITE ELEMENT ANALYSIS SOFTWARE. Office of Scientific and Technical Information (OSTI), June 2003. http://dx.doi.org/10.2172/814762.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Finite element analysis preprocessing' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography