Bibliografie tematiche / Numerical anlysis

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Letteratura scientifica selezionata sul tema "Numerical anlysis"

Autore: Grafiati
Pubblicato: 11 gennaio 2025
Ultima modifica: 31 luglio 2025

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Articoli di riviste sul tema "Numerical anlysis"

1

SHUAI, Cijun. "Numerical anlysis and experimental research in rheological manfacturing process of fibre devices." Chinese Journal of Mechanical Engineering 43, no. 07 (2007): 75. http://dx.doi.org/10.3901/jme.2007.07.075.

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Wang, Jinling, Guangwen Jiang, Jun Shen, and Chujun Hu. "Impact Anlysis of Bow Flap on LHA-1 Ship Airwake." MATEC Web of Conferences 179 (2018): 03007. http://dx.doi.org/10.1051/matecconf/201817903007.

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Abstract (sommario):
The sharp 90°corner of bow found on American Tarawa class general amphibious assault ship LHA-1 will produce large separated region in the airwake over the ship, and the turbulence in the separation region seriously affects the operation safety of the helicopter. In order to reduce the separation in bow region of the LHA-1, and optimize the helicopter operating environment, the numerical simulation method is used to study the influence of the bow flap on the airwake of LHA-1. The study results show that: the ANSYS k-ε two equation model based on the hybrid grid can be used to predict the stead
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Sliwa, Agata, Dariusz Gros, Andrei Victor Sandu, and Marcin Nabialek. "Optimization and Numerical Anlysis of Mechanical Properties of Connecting Rod in the Internal Combustion Engine." Revista de Chimie 69, no. 10 (2018): 2813–15. http://dx.doi.org/10.37358/rc.18.10.6630.

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The paper presents the process of optimisation of geometry of connecting rod used in the automotive industry. This connecting rod is used in a sports car with a high power engine, where high torque values can damage individual components. Three numerical, geometric models of 40HNMA structural steel connecting rods were made for optimisation. Statistical analysis of strength properties using the finite element method was carried out, and results for the models were compared. The simulation and calculations were performed in SolidWorks.
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Hou, Wei, Qing Xuan Shi, and Zhi Lin Ma. "Seismic Behavior Analysis on Reinforced Concrete Core Walls Based on Fiber Model." Advanced Materials Research 163-167 (December 2010): 1068–73. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.1068.

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Reinforced concrete core walls with good anti-side rigidity and spatial rigidity is used widely in high-rise buildings. Elasto-plastic static analysis of core walls are be realized by the program CANNY based on the theory of fiber model. Compared with the tests, Results from the simulation anlysis match well with those from the tests. The influence of axial compression ratio and height-width ratio on the bearing capacity and deformation of core walls are analyzed systemically. It is shown that the fiber model is available and successful for the numerical simulation of core walls. The axial com
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Li, Kun, and Qing Xuan Shi. "Nonlinear Analysis of Reinforced Concrete Core Walls Based on Three-Vertical-Line-Element Model." Advanced Materials Research 255-260 (May 2011): 1959–63. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.1959.

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Three-vertical-line-element model and uniaxial spring model were adopted to simulate walls and beams. Based on the existing experiment data, numerical simulation is used to analysis the nonlinear behavior of reinforced concrete core walls. The analysis also considered the influence of relevant parameters on the elasto-plastic in core walls structure. Results from the simulation anlysis match well with those from the tests. It is shown that the higher axial compression ratio enhance the bearing capacity; the ratio of height to width has effect on the bearing capacity, deformation performance an
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Du, You Fu, Chu Yang Chen, and Xiang Na Li. "Time-Domain Simulation of High-Speed Railway Track Irregularity." Applied Mechanics and Materials 587-589 (July 2014): 1039–42. http://dx.doi.org/10.4028/www.scientific.net/amm.587-589.1039.

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It was more convenient to describe track irregularity by the spatial frequency.The conventional frequency-domain transfer function can not effectively solve the vibration equation when anlysis of the vibration response to structure of vehicle-track dynamic coupling system, the time domain numerical integration must be used to solve it.The trigonometric series superposition method can be used to convert track irregularity spectrum into time domain frequency power spectral density function, and then turn the simulated irregularity samples into spectral density by the Inverse Fast Fourier Transfo
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Saenger, Erik H., and Thomas Bohlen. "Finite‐difference modeling of viscoelastic and anisotropic wave propagation using the rotated staggered grid." GEOPHYSICS 69, no. 2 (2004): 583–91. http://dx.doi.org/10.1190/1.1707078.

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We describe the application of the rotated staggered‐grid (RSG) finite‐difference technique to the wave equations for anisotropic and viscoelastic media. The RSG uses rotated finite‐difference operators, leading to a distribution of modeling parameters in an elementary cell where all components of one physical property are located only at one single position. This can be advantageous for modeling wave propagation in anisotropic media or complex media, including high‐contrast discontinuities, because no averaging of elastic moduli is needed. The RSG can be applied both to displacement‐stress an
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Somé, Windjiré, Germain Kaboré, Kassiénou Lamien, Ismaël Diallo, Ousséni So, and Blaise Somé. "Mathematical Modeling of COVID-19 with Chronic Patients and Sensitivity Analysis." International Journal of Systems Science and Applied Mathematics 9, no. 1 (2024): 9–19. http://dx.doi.org/10.11648/j.ijssam.20240901.12.

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Abstract (sommario):
Human health is constantly threatened by the appearance and resurgence of several diseases, as shown by recent epidemics. COVID-19 was one of the epidemics that left its mark on the world in terms of economic and human damages. In the search for solution to this pandemic, the scientific community is involved in all its diversity. Mathematicians are taking part in the fight through mathematical modeling in various approaches. Ordinary derivative compartmental modeling approache is one of the techniques widely used in epidemiological modeling. This paper presents a mathematical contribution to f
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Yuan, Ping, and Hui Yue Dong. "Numerical Simulation for the Milling of Alluminum Alloy Thin-Wall Workpiece with Two and Four Flutes Helical Cutter." Applied Mechanics and Materials 34-35 (October 2010): 1870–75. http://dx.doi.org/10.4028/www.scientific.net/amm.34-35.1870.

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In the milling process of thin wall workpiece, the more cutter flutes, the high metal remove ratio can be gotten. Milling forces with two-futes and four-flutes milling cutter were anlysised and compared using finite element method. The possibility and advantage of machining thin wall workpiece with four flutes milling cutter was introduced. The four flutes cutter can improve the metal remove ratio, and cutting force is more uniform in general.
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Duc, Bui Van, Nguyen Van Manh, and Piotr Osinski. "Improvement of an existing building shallow foundation using soil nails supported retaining wall: A numerical assessment." E3S Web of Conferences 405 (2023): 01010. http://dx.doi.org/10.1051/e3sconf/202340501010.

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Abstract (sommario):
In recent years, the need to expand the land area for infrastructure development, such as roads and streets near residential buildings, in urban areas in Vietnam has become more widespread. Such tendency leads to narrowing of the space available for further development thus the ground condition around existing buildings often need improvement. The foundations of existing buildings can no longer bear additional stresses. In such cases the foundation and the ground conditions need engineering solutions to provide geotechnical safety. The present paper presnts a numerical anlyses of soil nailing,
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Tesi sul tema "Numerical anlysis"

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Hübbe, Guilherme Bez Batti. "Numerical and experimental anlysis of a high lifting airfoil at low Reynolds number flows." reponame:Repositório Institucional da UFSC, 2017. https://repositorio.ufsc.br/xmlui/handle/123456789/182906.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2017.<br>Made available in DSpace on 2018-01-30T03:20:50Z (GMT). No. of bitstreams: 1 349588.pdf: 4625385 bytes, checksum: dc1dca352ea0ffce13b4320754881721 (MD5) Previous issue date: 2017<br>A análise e desenvolvimento de perfis aerodinâmicos para operação em baixas velocidades têm ganhado importância recentemente devido à crescente utilização de VANTs (Veículos Aéreos Não Tripulados) e turbinas eólicas. Nessas aplicações, o número de Reynolds
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Laidin, Tino. "Méthodes numériques hybrides cinétique/fluide et préservant la structure pour des équations cinétiques collisionnelles." Electronic Thesis or Diss., Université de Lille (2022-....), 2024. http://www.theses.fr/2024ULILB019.

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Abstract (sommario):
Cette thèse porte sur le développement et l'analyse de méthodes numériques performantes pour l'approximation des solutions d'équations cinétiques collisionnelles éventuellement non linéaires. Ces équations apparaissent dans divers domaines tels que la physique, notamment dans l'étude des semi-conducteurs et de la dynamique des gaz. Elles apparaissent aussi en biologie dans la modélisation du mouvement de cellules dans un tissu. Ces modèles présentent un aspect multi-échelle. D'une part, on a une description mésoscopique (ou cinétique) qui donne l'évolution de la fonction de distribution des pa
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Atti di convegni sul tema "Numerical anlysis"

1

Weili Li, Chengyu Song, Junci Cao, and Liyi Li. "Numerical anlysis of axial-radial flux type fully superconducting synchronous motor." In 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation (CEFC 2010). IEEE, 2010. http://dx.doi.org/10.1109/cefc.2010.5481425.

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Wang, Haoming, Qingxin Yang, Yongjian Li, Jianmin Wang, Dongdong Yuan, and Mingfang Hu. "Numerical Anlysis of Electromagnetic Characteristic of Several Parallel Coils For High Current Transformer." In 2018 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD). IEEE, 2018. http://dx.doi.org/10.1109/asemd.2018.8559008.

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Frischbier, J., G. Schulze, M. Zielinski, G. Ziller, C. Blaha, and D. K. Hennecke. "Blade Vibrations of a High Speed Compressor Blisk-Rotor: Numerical Resonance Tuning and Optical Measurements." In ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-gt-024.

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A major challenge during the design process of a modern low aspect ratio high speed axial compressor is to find rotor blade geometries that meet both, aerodynamic and mechanical requirements. This paper deals with the mechanical design of a transonic compressor blade. In order to meet the mechanical requirements in a short development time, new methods were used: A numerical optimization tool and an optical blade vibration measurement method: The numerical resonance tuning took advantage of a semi-automatic optimization technique, based on a Finite Element vibration anlysis tool. The intention
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4

Chen, Changping, Yejie Jiang, and Liming Dai. "Nonlinear Dynamic Analysis of an Electrically Actuated Piezoelectric Laminated Microbeam With the Effect of AC." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-37029.

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Abstract (sommario):
The paper presents not a nonlinear static research but dynamic anlysis for an electrically actuated piezoelectric laminated micro-beam. On the basis of the Euler-Bernoulli hypothesis, and the responses under electric force [a purely direct current and a combined current composed of a direct current and an alternating current] are investigated, respectively. By using the Taylor series expansion, a set of governing equations of nonlinear integro-differential type is derived. Then using the Galerkin method and the fourth-order Runge-Kutta method, an analytical is presented. Numerical examples sho
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Tiwari, Chandni, Varun Mishra, and G. Sharath Chandra Reddy. "Performance Anlysis of i-Ch3Nh3SnI3 Perovskite Solar Cell Using Numerical Technique." In 2023 International Conference on Computational Intelligence, Communication Technology and Networking (CICTN). IEEE, 2023. http://dx.doi.org/10.1109/cictn57981.2023.10141468.

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