Relevant bibliographies by topics / Mass spring model

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  2. Dissertations / Theses
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Academic literature on the topic 'Mass spring model'

Author: Grafiati
Published: 4 June 2021
Last updated: 7 February 2022

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Journal articles on the topic "Mass spring model"

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Chen, Yuanwei, Bing He, and Xuefu Yu. "Research on Garment Wrinkle Synthetic Method Based on Mass-Spring Model." International Journal of Materials, Mechanics and Manufacturing 3, no. 4 (2015): 270–74. http://dx.doi.org/10.7763/ijmmm.2015.v3.209.

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Wu, Li Xiang, Xing Min Hou, and Jia Zhang. "Mass-Spring-Damping Model of Saturated Sands." Applied Mechanics and Materials 170-173 (May 2012): 153–58. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.153.

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Based on the theory of elastic wave in saturated soils, the vertical vibration of a rigid circular footing resting on saturated sands is studied to obtain its analytical solution of dynamic compliance coefficients. Considering the role of water in the soil, the mass-spring-damping model of saturated sands is proposed to realize a practical way for engineering. And the stiffness and damping coefficients of model are calculated by reciprocity law equation. Compared with the solution of elastic half-space with the same Poisson’s ratio, the coefficients of the saturated sands are quite large. To comply with engineering practice, the approximate formula should be modified with multiplying them by factor in the Code for Dynamic Machine Foundation Design.
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KOT, Maciej, Hiroshi NAGAHASHI, and Krzysztof GRACKI. "Resolution Scaling for Mass Spring Model Simulations." IEICE Transactions on Information and Systems E97.D, no. 8 (2014): 2138–46. http://dx.doi.org/10.1587/transinf.e97.d.2138.

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Smith, G. A., and P. Watanatada. "MASS-SPRING MODEL WITH TIME-VARYING STIFFNESS." Medicine & Science in Sports & Exercise 35, Supplement 1 (May 2003): S129. http://dx.doi.org/10.1097/00005768-200305001-00708.

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Selle, Andrew, Michael Lentine, and Ronald Fedkiw. "A mass spring model for hair simulation." ACM Transactions on Graphics 27, no. 3 (August 2008): 1–11. http://dx.doi.org/10.1145/1360612.1360663.

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Pellicer, M., and J. Solà-Morales. "Analysis of a viscoelastic spring–mass model." Journal of Mathematical Analysis and Applications 294, no. 2 (June 2004): 687–98. http://dx.doi.org/10.1016/j.jmaa.2004.03.008.

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Yang, Jian Dong, and Shu Yuan Shang. "Cloth Modeling Simulation Based on Mass Spring Model." Applied Mechanics and Materials 310 (February 2013): 676–83. http://dx.doi.org/10.4028/www.scientific.net/amm.310.676.

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The crucial problem in cloth simulation based on Physical model is how to solve the motion differential equations. Mass spring model is ideal and it is widely used in cloth simulation. The simulation technology of cloth modeling based on mass spring model is presented completely, fabric mechanics models are established precisely, and several kinds of explicit numerical integration are compared in detail, especially, using RK-4 method can greatly improve system’s stability. This cloth simulation method is applied to cloth software. Examples have proved that this method is advanced and practical.
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Chahyadi, Hendry D. "Simulation and Analysis of Two-Mass Suspension Modification Using MATLAB Programming." ACMIT Proceedings 3, no. 1 (March 18, 2019): 160–65. http://dx.doi.org/10.33555/acmit.v3i1.39.

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The designs of automotive suspension system are aiming to avoid vibration generated by road condition interference to the driver. This final project is about a quarter car modeling with simulation modeling and analysis of Two-Mass modeling. Both existing and new modeling are being compared with additional spring in the sprung mass system. MATLAB program is developed to analyze using a state space model. The program developed here can be used for analyzing models of cars and vehicles with 2DOF. The quarter car modelling is basically a mass spring damping system with the car serving as the mass, the suspension coil as the spring, and the shock absorber as the damper. The existing modeling is well-known model for simulating vehicle suspension performance. The spring performs the role of supporting the static weight of the vehicle while the damper helps in dissipating the vibrational energy and limiting the input from the road that is transmitted to the vehicle. The performance of modified modelling by adding extra spring in the sprung mass system provides more comfort to the driver. Later on this project there will be comparison graphic which the output is resulting on the higher level of damping system efficiency that leads to the riding quality.
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YUAN, ZHIYONG, SHIKUN FENG, QIAN YIN, XIALI WANG, DENGYI ZHANG, JIANHUI ZHAO, and MIANYUN CHEN. "ENDOSCOPIC IMAGE CUTTING SIMULATION BASED ON MASS-SPRING MODEL AND COMPUTATIONAL GEOMETRY." Journal of Circuits, Systems and Computers 18, no. 08 (December 2009): 1453–65. http://dx.doi.org/10.1142/s0218126609005782.

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As minimally invasive surgical techniques become widely known to patients, medical training systems based on virtual simulation are highly desired. These systems help surgeon trainees to acquire, practice and evaluate their surgical skills. A key component in a virtual training system is to simulate the dynamics that occur in surgical procedures. Tissue cutting, as a common phenomenon during surgery, has attracted many research efforts in computer simulation. In this paper, we propose an approach to endoscopic image cutting simulation which is based on both mass-spring model and Computational Geometry. In the cutting simulation model, the springs to be cut off are imagined into line segments. In the calculation of the elastic force on mass points, we have found that whether some adjacent springs of a mass point to be eliminated or not during a cutting is critical. If a spring intersects the cutting plane, we set the elastic force of this spring to zero. We adopted properties of cross product and related algorithms (the rapid exclusion test, the crossover test) in Computational Geometry to determine the springs that are intersected with the cutting plane. And then, we utilized the bilinear interpolation and OpenGL techniques to render the cutting procedure of the soft tissue. The experimental results show that our cutting simulation is effective and practical.
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ABE, Hideki, Shinichi SAZAWA, Masayoshi HASHIMA, and Yuichi SATO. "3316 A Mass-Spring Model Approach for Interactive Simulation of Wire Harnesses." Proceedings of Design & Systems Conference 2008.18 (2008): 582–87. http://dx.doi.org/10.1299/jsmedsd.2008.18.582.

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Dissertations / Theses on the topic "Mass spring model"

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Silva, Josildo Pereira da. "A Data-Driven Approach for Mass-Spring Model Parametrization Based on Continuous Models." Instituto de Matemática, 2015. http://repositorio.ufba.br/ri/handle/ri/22848.

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Nowadays, the behavior simulation of deformable objects plays important roles in several fields such as computer graphics, computer aided design, computer aided surgery And robotics. The two main categories of deformable models are: based on continuum mechanics, like Finite Element Model (FEM) or Isogeometric Analysis (IGA); and using discrete representations, as a Mass - Spring Model (MSM). FEM methods are known for their high computational cost and precision, while MSM methods, although simple and affordable for real-time applications, are di cult to parameterize. There is no general physically based or systematic method in the literature to determine the mesh topology or MSM parameters from a known material. Therefore, in this thesis, we proposea methodology to parametrize the MSM based on continuous models with focus on the simulation of deformable objects in real-time for application in virtual environments. We developed two data-driven approaches to the parametrization of the MSM by using FEM and IGA models as reference of derivation with higher order elements. Based on experimental results, the precision achieved by these new methodologies is higher than other approaches in literature. In particular, our proposal achieves excellent results in the parametrization of the MSM with higher order elements which does not occur with other methodologies
Atualmente, a simula¸c˜ao de objetos deform´aveis desempenha papel importante em v´arios campos ligados `a Ciˆencia da Computa¸c˜ao, como a computa¸c˜ao gr´afica, projeto assistido por computador, cirurgias assistidas por computador e rob´otica. Nesse contexto, a simula¸c˜ao de objetos deform´aveis com acur´acia e em tempo-real ´e uma tarefa extremamente dificil para as aplica¸c˜oes que requerem simula¸c˜oes mecˆanicas interativas como s˜ao os casos dos ambientes virtuais, simuladores cir´urgicos e jogos. Podemos dividir as abordagens que d˜ao suporte ao tratamento de modelos deform´aveis em dois grandes grupos: baseados em mecˆanica do cont´ınuo, como M´etodo de Elementos Finitos (FEM - Finite Element Method) ou An´alise Isogeom´etrica (IGA - Isogeometric Analysis); e usando representa¸c˜oes discretas, como modelo massa-mola (MSM - Mass Spring Model). M´etodos baseados na abordagem cont´ınua s˜ao conhecidos por seu alto custo computacional e acur´acia, enquanto que os m´etodos discretos, embora simples e adequados para simula¸c˜oes mecˆanicas interativas, s˜ao dif´ıceis de parametrizar. A falta de um m´etodo geral baseado em f´ısica ou sistem´atico para determinar a topologia de malha ou os parˆametros do MSM a partir de um material conhecido foi a principal motiva¸c˜ao desse trabalho, no sentido de gerar um modelo de baixo custo computacional, como o MSM, a partir de um modelo de alta precis˜ao como o FEM. Portanto, partindo da premissa de simplicidade e adequa¸c˜ao do MSM para simula¸c˜oes mecˆanicas interativas, nesta tese propomos uma metodologia para parametrizar o MSM baseada em modelos cont´ınuos. Desenvolvemos duas abordagens orientadas `a dados (data-driven) para a parametriza¸c˜ao do MSM usando modelos FEM e IGA, este ´ultimo como referˆencia de deriva¸c˜ao com elementos de ordem superior. Com base nos resultados experimentais, a precis˜ao alcan¸cada por estas novas metodologias ´e mais elevada do que a de outros trabalhos similiares na literatura. Em particular, a nossa proposta alcan¸ca excelentes resultados na parametriza¸c˜ao do MSM com elementos de ordem superior
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Eriksson, Emil. "Simulation of Biological Tissue using Mass-Spring-Damper Models." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-27663.

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The goal of this project was to evaluate the viability of a mass-spring-damper based model for modeling of biological tissue. A method for automatically generating such a model from data taken from 3D medical imaging equipment including both the generation of point masses and an algorithm for generating the spring-damper links between these points is presented. Furthermore, an implementation of a simulation of this model running in real-time by utilizing the parallel computational power of modern GPU hardware through OpenCL is described. This implementation uses the fourth order Runge-Kutta method to improve stability over similar implementations. The difficulty of maintaining stability while still providing rigidness to the simulated tissue is thoroughly discussed. Several observations on the influence of the structure of the model on the consistency of the simulated tissue are also presented. This implementation also includes two manipulation tools, a move tool and a cut tool for interaction with the simulation. From the results, it is clear that the mass-springdamper model is a viable model that is possible to simulate in real-time on modern but commoditized hardware. With further development, this can be of great benefit to areas such as medical visualization and surgical simulation.
Målet med detta projekt var att utvärdera huruvida en modell baserad på massa-fjäderdämpare är meningsfull för att modellera biologisk vävnad. En metod för att automatiskt generera en sådan modell utifrån data tagen från medicinsk 3D-skanningsutrustning presenteras. Denna metod inkluderar både generering av punktmassor samt en algoritm för generering av länkar mellan dessa. Vidare beskrivs en implementation av en simulering av denna modell som körs i realtid genom att utnyttja den parallella beräkningskraften hos modern GPU-hårdvara via OpenCL. Denna implementation använder sig av fjärde ordningens Runge-Kutta-metod för förbättrad stabilitet jämfört med liknande implementationer. Svårigheten att bibehålla stabiliteten samtidigt som den simulerade vävnaden ges tillräcklig styvhet diskuteras genomgående. Flera observationer om modellstrukturens inverkan på den simulerade vävnadens konsistens presenteras också. Denna implementation inkluderar två manipuleringsverktyg, ett flytta-verktyg och ett skärverktyg för att interagera med simuleringen. Resultaten visar tydligt att en modell baserad på massa-fjäder-dämpare är en rimlig modell som är möjlig att simulera i realtid på modern men lättillgänglig hårdvara. Med vidareutveckling kan detta bli betydelsefullt för områden så som medicinsk bildvetenskap och kirurgisk simulering.
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Shiva, V. A. "Visualization of wave propagation in elastic solids using a mass-spring lattice model." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/63194.

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Thesis (M.S.V.S.)--Massachusetts Institute of Technology, Dept. of Architecture, February 1990.
Videocassette is VHS format.
Includes bibliographical references.
by Shiva Ayyadurai.
M.S.V.S.
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Hall, Anthony R. "The Pseudo-Rigid-Body Model for Fast, Accurate, Non-Linear Elasticity." BYU ScholarsArchive, 2013. https://scholarsarchive.byu.edu/etd/3869.

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We introduce to computer graphics the Pseudo-Rigid-Body Mechanism (PRBM) and the chain algorithm from mechanical engineering, with a unified tutorial from disparate source materials. The PRBM has been used successfully to simplify the simulation of non-linearly elastic beams, using deflections of an analogous spring and rigid-body linkage. It offers computational efficiency as well as an automatic parameterization in terms of physically measurable, intuitive inputs which fit naturally into existing animation work flows for character articulation. The chain algorithm is a technique for simulating the deflection of complicated elastic bodies in terms of straight elastic elements, which has recently been extended to incorporate PRBM beam-elements in three dimensions. We present a new, mathematically equivalent optimization of the 3D PRBM chain algorithm, from its former asymptotic complexity of O(n^2) in the number of elements n, to O(n). We also extend an existing PRBM for combined moment-force loads to 3D, where the existing 3D PRBM chain algorithm was limited to 3D PRBM elements for a moment-only load. This optimization and extension are validated by duplicating prior experimental results, but substituting the new optimization and combined-load elements. Finally, a loose road-map is provided with several key considerations for future extension of the techniques to dynamic simulations.
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Alajmi, Fawaz M. "FROM "INDEXING" OFFICIALS TO "INDEXING" THE PUBLIC: KUWAITI NEWSPAPERS AGENDA BUILDING, NEWS INDEXING AND TWITTER USE IN KARAMAT WATAN PROTESTS, 2012." OpenSIUC, 2015. https://opensiuc.lib.siu.edu/dissertations/1024.

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MAJOR PROFESSORS: DR. UCHE ONYEBADI & DR. KATHERINE T. FRITH This dissertation was conducted to determine whom the Kuwaiti newspapers indexed in their news reports during the Karamat Watan protests, and how Twitter influenced the indexing process. This study also examined how and why Twitter affected Kuwaiti journalists' agenda building process during their coverage of the protests. For the purpose of this study, the theoretical framework was the indexing model and the agenda building theory. To answer the research questions and hypothesis in this dissertation the researcher used a mixed method approach, comprising the quantitative content analysis of Kuwaiti newspapers and qualitative in-depth interviews with Kuwaiti journalists. The content analysis results show that Kuwaiti newspapers indexed more public views than official views in their coverage of the Karamat Watan protests and the number of non-official sources is larger than the number of official sources in the coverage of the event- driven news. Also, the analysis shows that during the protests the independent newspapers indexed more public views than the semi- official newspapers in Kuwait. Furthermore, the interviews show that Kuwaiti journalists were not unanimous in their opinions regarding the role of twitter in their agenda building process during the protests. While some of them believed that twitter was a good tool that helped them in their coverage of the protests in particular and other events in general, others said that it was hard to be confident about the credibility of the online sources.
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Merker, Andreas [Verfasser], Martin [Akademischer Betreuer] Hermann, Andre [Akademischer Betreuer] Seyfarth, and Gerhard [Akademischer Betreuer] Zumbusch. "Numerical bifurcation analysis of the asymmetric spring-mass model / Andreas Merker. Gutachter: Martin Hermann ; Andre Seyfarth ; Gerhard Zumbusch." Jena : Thüringer Universitäts- und Landesbibliothek Jena, 2014. http://d-nb.info/1058858025/34.

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Villeger, David. "Restitution d'énergie élastique et locomotion (REEL) : une approche adimensionnelle." Toulouse 3, 2014. http://thesesups.ups-tlse.fr/4068/.

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L'objectif de ce travail est de développer une approche adimensionnelle de la locomotion humaine, et plus précisément de la marche et de la course. En d'autres termes, le principal enjeu de cette thèse est d'induire des similitudes locomotrices entre des hommes de tailles différentes. Ces similitudes locomotrices attendues entre des individus de différentes tailles sont les mêmes que celles que les physiciens recherchent lors de l'élaboration de prototype à partir de maquette. Dans l'approche que nous tentons de développer tout au long de ce document, nous considérons qu'un individu petit est le modèle réduit d'un plus grand. Notre approche est au croisement des champs de la physique, de la modélisation et de la biomécanique. L'application de l'analyse dimensionnelle aux modèles simples de locomotion permet de mettre en avant l'intérêt des nombres adimensionnels de Froude (vitesse adimensionnelle) et Strouhal (fréquence adimensionnelle) pour étudier la locomotion humaine. Ces modèles simples de locomotion simplifient le corps humain à la masse du corps concentrée au centre de gravité oscillant à l'extrémité d'un ressort. Ils prennent en compte une composante élastique et mettent en avant des transferts se réalisant au centre de gravité entre les énergies cinétique, potentielle de pesanteur et potentielle élastique. Le rapport de ces énergies est appelé Modela. Modela possède deux variantes, une pour la marche et l'autre pour la course, et est dépendant de Froude et Strouhal. Dans un premier temps, les conditions expérimentales de vitesse de déplacement (à partir de Froude) et de fréquence de pas (à partir de Strouhal), toutes deux relatives à l'anthropométrie des individus, ont permis d'engendrer des similitudes locomotrices pour la marche et la course chez des individus de tailles différentes. Ces résultats révèlent tout l'intérêt d'une approche adimensionnelle de la locomotion en montrant qu'exprimés indépendamment de l'anthropométrie des individus, leurs comportements adimensionnels est le même. Utiliser cette approche pour comparer des locomotions au sein même de l'espèce humaine a un grand intérêt pour étudier des comportements déviants d'un comportement standard. Aussi, cette approche peut être un moyen de mettre en avant des organisations du mouvement communes à différentes espèces. Dans un second temps, l'accent est mis sur la comparaison entre le modèle simple et le modèle complexe du corps humain. D'un coté, le modèle simple du corps humain prend en compte une composante élastique et ne s'intéresse qu'au centre de gravité. De l'autre coté, le corps humain peut être modélisé comme un ensemble de segments corporels articulés entre eux. Ici, un lien est fait entre le mouvement global du centre de gravité et les coordinations des segments poly-articulés, lors du mouvement, et tout ce que cela engendre en termes de transfert d'énergie. Le rapprochement des deux modèles explique comment un individu peut se comporter comme une masse bondissante lors de la marche et la course ou comment les expérimentations futures pourront investir le champ de l'élasticité humaine et de l'économie d'énergie
The aim of this paper is to develop a dimensionless approach of the human locomotion, and more specifically of walking and running gaits. In other terms, the main goal of this PhD thesis is to induce locomotor similarity between different-sized humans. These similarities are the same that the physicians look for when they design a prototype from a scale model. Throughout the thesis paper, this approach allows the consideration that a small human is a reduced model of a tall one. Our approach is cross-fielded like Physics, Modelization, and Biomechanics. The dimensional analysis application to the common locomotion models allows to highlight the interest of using the dimensionless numbers of Froude (dimensionless speed) and Strouhal (dimensionless frequency) to study human locomotion. These locomotion models are reduced to the body mass represented at its center of mass oscillating at the end of a massless spring. They take into account an elastic component and enlighten transfers occurring at the center of mass between the kinetic, potential and elastic energies. The ratio of these energies is called Modela. A Modela corresponds to both walking and running, and depends on Froude and Strouhal. First, the experimental conditions such as speed displacement relative to anthropometry (from Froude) and step frequency relative to anthropometry (from Strouhal) allow us to generate locomotor similarity between different-sized subjects for walking and running. These results reveal the interest of the dimensionless approach of the locomotion by showing that the dimensionless behaviors are the same when they are expressed independently of the subject anthropometry. The use of this approach to compare human locomotions is interesting to study behavior different to the gold dimensionless standard. Also, this approach may be a means to highlight a global organization of the movement which is common to many species. Then, the comparison between the simple model and the complex model is investigated. In one hand, the model takes into account an elastic component and only describe the center of mass movement. In the other hand, the human body is represented as a whole of body segment poly-articulated. A link is done between the global movement of the center of mass and the movement of the poly-articular model, and especially regarding for the energy transfers. The link between the models explain how a subject has the same behavior of a spring mass, and how the future works will be able to investigate the fields of the human elasticity and the saving energy mechanisms
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Yen, Jasper Tong-Biau. "Force control during human bouncing gaits." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/43698.

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Every movement has a goal. For reaching, the goal is to move the hand to a specific location. For locomotion, however, goals for each step cycle are unclear and veiled by the automatic nature of lower limb control. What mechanical variables does the nervous system "care" about during locomotion? Abundant evidence from the biomechanics literature suggests that the force generated on the ground, or endpoint force, is an important task variable during hopping and running. Hopping and running are called bouncing gaits for the reason that the endpoint force trajectory is like that of bouncing on a pogo stick. In this work, I captured kinematics and kinetics of human bouncing gaits, and tested whether structure in the inherent step-to-step variability is consistent with control of endpoint force. I found that joint torques covary from step to step to stabilize only peak force. When two limbs are used to generate force on the ground at the same time, individual forces of the limbs are not stabilized, but the total peak force is stabilized. Moreover, passive dynamics may be exploited during forward progression. These results suggest that the number of kinetic goals is minimal, and this simple control scheme involves goals for discrete times during the gait cycle. Uncovering biomechanical goals of locomotion provides a functional context for understanding how complex joints, muscles, and neural circuits are coordinated.
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Fléchon, Elsa. "Définition d'un modèle unifié pour la simulation physique adaptative avec changements topologiques." Thesis, Lyon 1, 2014. http://www.theses.fr/2014LYO10284/document.

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Les travaux réalisés pendant mon doctorat répondent à la problématique de la simulation physique, en temps interactif, du comportement d'objets déformables soumis à des changements topologiques. Mes travaux ont abouti à la définition d'un nouveau modèle unifié couplant un modèle topologique complet et un modèle physique, pour la simulation physique d'objets déformables décomposés en éléments surfaciques comme volumiques, tout en réalisant pendant cette simulation des changements topologiques comme la découpe ou la subdivision locale d'un élément du maillage. Cette dernière opération a permis de proposer une méthode adaptative où les éléments du maillage sont raffinés selon un critère géométrique au cours de la simulation. Nous avons fait le choix des cartes combinatoires et plus particulièrement celui des complexes cellulaires linéaires, comme modèle topologique de notre modèle unifié. Ils ont l'avantage d'être génériques par rapport à la dimension de l'objet représenté mais également par rapport à la topologie des cellules en lesquelles l'objet est décomposé. Le système masses-ressort a, quant à lui, été choisi comme modèle physique de notre modèle unifié. L'avantage de ce dernier réside dans la simplicité de ses équations, son implémentation intuitive, son interactivité et sa facilité à gérer les changements topologiques. Enfin, la définition d'un modèle unifié nous a permis de proposer un modèle évitant la redondance d'informations et facilitant la mise à jour de ces dernières suite à des changements topologiques
The work made during my PhD, respond to the problematic of physical simulation of the behavior of deformable objects subject to topological changes in interactive time. My work resulted in the definition of a new unified model coupling a complete topological model and a physical model for physical simulation of deformable objects decomposed in surface as volume elements, while performing during this simulation topological changes such as cutting or subdivision local of a mesh element. This operation allowed us to propose an adaptive method where mesh elements are refined during the simulation according to a geometric criterion. For the topological model of our unified model, we made the choice of combinatorial maps and more particularly linear cellular complexes. Their main advantage of the latter is the simplicity of its equations, its intuitive implementation, its interactivity and its ease to handle topological changes. Finally, the definition of a unified model allowed us to propose a model avoiding duplication of information and facilitate the update after topological changes
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Holt-Phoenix, Marianne S. (Marianne Shue). "Wave propagation in finite element and mass-spring-dashpot lattice models." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/35683.

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Thesis (Nav. E. and S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2006.
Includes bibliographical references (p. 42).
Numerical efficiency comparisons of a four-node finite element model (FEM), a mass-spring lattice model (MSLM), and a mass-spring-dashpot lattice model (MSDLM) are investigated. Specifically, the error in the ultrasonic phase speed with variations in Poisson's ratio and angle of incidence is evaluated in each model of an isotropic elastic solid. With regard to phase speed, materials with constant N grid spaces per P-wavelength having Poisson's ratios between 0.0 and 0.25 are modeled more accurately with the MSLM. Materials with Poisson's ratios between 0.35 and 0.5 and N grid spaces per P-wavelength are more accurately modeled with the FEM. Materials whose Poisson's ratio is between 0.25 and 0.35 are modeled equally accurately. With regard to phase speed, viscoelastic materials modeled with FEM and MSDLM show good agreement with known analytical solutions. The computational expense of all three models is also examined. The number of floating point operations (FLOPS) needed to achieve a specified phase speed accuracy is calculated for each different model. While the FEM and MSLM have nearly the same computation cost, the MSDLM is 5 times more costly than either the FEM or MSLM.
by Marianne S. Holt-Phoenix.
Nav.E.and S.M.
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Books on the topic "Mass spring model"

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Ochoa Espejo, Paulina. On Borders. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780190074197.001.0001.

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When are borders justified? Who has a right to control them? Where should they be drawn? People today think of borders as an island’s shores. Just as beaches delimit a castaway’s realm, so borders define the edge of a territory occupied by a unified people, to whom the land legitimately belongs. Hence a territory is legitimate only if it belongs to a people unified by civic identity. Sadly, this Desert Island Model of territorial politics forces us to choose. If a country seeks to have a legitimate territory, it can either have democratic legitimacy or inclusion of different civic identities—but not both. The resulting politics creates mass xenophobia, migrant bashing, hoarding of natural resources, and border walls. On Borders presents an alternative model. Drawing on an intellectual tradition concerned with how land and climate shape institutions, this book argues that we should not see territories as pieces of property owned by identity groups. Instead, we should see them as watersheds: as interconnected systems where institutions, people, the biota, and the land together create overlapping civic duties and relations, what the book calls place-specific duties. This Watershed Model argues that borders are justified when they allow us to fulfill those duties; that border-control rights spring from internationally agreed conventions—not from internal legitimacy, that borders should be governed cooperatively by the neighboring states and the states system, and that border redrawing should be done with environmental conservation in mind. The book explores how this model undoes the exclusionary politics of desert islands.
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Book chapters on the topic "Mass spring model"

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Lynch, Gordon S., David G. Harrison, Hanjoong Jo, Charles Searles, Philippe Connes, Christopher E. Kline, C. Castagna, et al. "Spring-Mass Model." In Encyclopedia of Exercise Medicine in Health and Disease, 809. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-540-29807-6_3063.

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Mollemans, Wouter, Filip Schutyser, Johan Van Cleynenbreugel, and Paul Suetens. "Tetrahedral Mass Spring Model for Fast Soft Tissue Deformation." In Surgery Simulation and Soft Tissue Modeling, 145–54. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/3-540-45015-7_14.

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Liping, Dong, Wang Xiaowei, Zhang Xinqi, Bu Shaoxian, and Liu Guoqing. "Floor Impact Bench-Test Method Based on Mass-Spring Model." In Lecture Notes in Electrical Engineering, 937–46. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-7945-5_68.

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Williams, J. G., and M. N. M. Badi. "The effect of damping on the spring-mass dynamic fracture model." In Structural Integrity, 147–61. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-0927-4_13.

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Boehler, T., and H. O. Peitgen. "Evaluation of Image Registration Using a Mass-Spring Model of the Breast." In IFMBE Proceedings, 2201–4. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03882-2_584.

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Paloc, Celine, Fernando Bello, Richard I. Kitney, and Ara Darzi. "Online Multiresolution Volumetric Mass Spring Model for Real Time Soft Tissue Deformation." In Medical Image Computing and Computer-Assisted Intervention — MICCAI 2002, 219–26. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/3-540-45787-9_28.

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Huang, Jie, and D. L. Turcotte. "Chaotic Seismic Faulting with a Mass-spring Model and Velocity-weakening Friction." In Fractals and Chaos in the Earth Sciences, 569–89. Basel: Birkhäuser Basel, 1992. http://dx.doi.org/10.1007/978-3-0348-6191-5_4.

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Wang, Hongjie, Yuanjun Ding, Qingqing Yang, and Haibo Pu. "Cloth Simulation Algorithm Based on the Mass-Spring Model and the Non-planar Vortex Lattice Model." In Lecture Notes in Electrical Engineering, 578–85. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3250-4_72.

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Mollemans, Wouter, Filip Schutyser, Johan Van Cleynenbreugel, and Paul Suetens. "Fast Soft Tissue Deformation with Tetrahedral Mass Spring Model for Maxillofacial Surgery Planning Systems." In Medical Image Computing and Computer-Assisted Intervention – MICCAI 2004, 371–79. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-540-30136-3_46.

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Arriola-Rios, Veronica E., and Jeremy Wyatt. "2D Mass-spring-like Model for Prediction of a Sponge’s Behaviour upon Robotic Interaction." In Research and Development in Intelligent Systems XXVIII, 195–208. London: Springer London, 2011. http://dx.doi.org/10.1007/978-1-4471-2318-7_14.

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Conference papers on the topic "Mass spring model"

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Córdoba, Oscar. "Mass Spring Interlocked Bladed Disk Model." In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-15923.

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Abstract A simplified bladed disk model with cantilever and interlock conditions is described. Blade is composed of three masses, two for the lower and higher part of the shroud, and one for the main core of the blade. A similar scheme is employed in the disk. The different masses in the model are linked with springs introducing the stiffness between them. Additional disk restrictions reduce the model capabilities but account the effect of common boundary conditions. The model simplicity allows an analytical solution with polynomials to understand the fundamentals of vibration. The extended stiffness and mass matrix with Lagrange multipliers are used. The modal frequencies and modes as function of the nodal diameter are studied. The interlock solution is compared to cantilever and different sorts of frequency curves have been identified and classified. Some basic conclusions related to the model parameters are achieved.
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García, Marcos, Luis Pastor, and Angel Rodríguez. "An adaptive multiresolution mass-spring model." In Visual Communications and Image Processing 2005. SPIE, 2005. http://dx.doi.org/10.1117/12.631407.

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Selle, Andrew, Michael Lentine, and Ronald Fedkiw. "A mass spring model for hair simulation." In ACM SIGGRAPH 2008 papers. New York, New York, USA: ACM Press, 2008. http://dx.doi.org/10.1145/1399504.1360663.

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Augusto Del Carpio Minaya, Roberto, and Yalmar Ponce Atencio. "Applications of spring-mass model on crystalline lattices." In 2017 XLIII Latin American Computer Conference (CLEI). IEEE, 2017. http://dx.doi.org/10.1109/clei.2017.8226473.

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Ariyanto, Gunawan, and Mark S. Nixon. "Marionette mass-spring model for 3D gait biometrics." In 2012 5th IAPR International Conference on Biometrics (ICB). IEEE, 2012. http://dx.doi.org/10.1109/icb.2012.6199832.

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Lou, Zhangpeng, Hui Zhang, Yiheng Wei, and Yong Wang. "Super-elasticity handling method in mass-spring model." In 2014 33rd Chinese Control Conference (CCC). IEEE, 2014. http://dx.doi.org/10.1109/chicc.2014.6896025.

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Kot, Maciej, and Hiroshi Nagahashi. "Verlet with Collisions for Mass Spring Model Simulations." In International Conference on Computer Graphics Theory and Applications. SCITEPRESS - Science and Technology Publications, 2017. http://dx.doi.org/10.5220/0006269303140320.

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Yang, Ziyan, Wenzhe Zhu, and Qing Zhu. "Mass-spring Model for Liquid Object Collision Simulation." In IVSP 2021: 2021 3rd International Conference on Image, Video and Signal Processing. New York, NY, USA: ACM, 2021. http://dx.doi.org/10.1145/3459212.3459229.

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Yu, Haiyan, and Zhaofeng Geng. "An Improved Mass-Spring Model to Simulate Draping Cloth." In 2008 International Conference on Intelligent Computation Technology and Automation (ICICTA). IEEE, 2008. http://dx.doi.org/10.1109/icicta.2008.12.

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Hissem, Simon, and Mamadou Lamine Doumbia. "Infinite Spring-Mass Chain Model Using Fibonacci Wave Functions." In 2019 Advances in Science and Engineering Technology International Conferences (ASET). IEEE, 2019. http://dx.doi.org/10.1109/icaset.2019.8714460.

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