Bibliografías temáticas / 3d Morphing

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Literatura académica sobre el tema "3d Morphing"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 25 de mayo de 2024

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Artículos de revistas sobre el tema "3d Morphing"

Bao, Hujun y Qunsheng Peng. "Interactive 3D Morphing". Computer Graphics Forum 17, n.º 3 (agosto de 1998): 23–30. http://dx.doi.org/10.1111/1467-8659.00250.

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Jensen, Peter Dørffler Ladegaard, Fengwen Wang, Ignazio Dimino y Ole Sigmund. "Topology Optimization of Large-Scale 3D Morphing Wing Structures". Actuators 10, n.º 9 (31 de agosto de 2021): 217. http://dx.doi.org/10.3390/act10090217.

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This work proposes a systematic topology optimization approach for simultaneously designing the morphing functionality and actuation in three-dimensional wing structures. The actuation was modeled by a linear-strain-based expansion in the actuation material. A three-phase material model was employed to represent structural and actuating materials and voids. To ensure both structural stiffness with respect to aerodynamic loading and morphing capabilities, the optimization problem was formulated to minimize structural compliance, while the morphing functionality was enforced by constraining a morphing error between the actual and target wing shape. Moreover, a feature-mapping approach was utilized to constrain and simplify the actuator geometries. A trailing edge wing section was designed to validate the proposed optimization approach. Numerical results demonstrated that three-dimensional optimized wing sections utilize a more advanced structural layout to enhance structural performance while keeping the morphing functionality better than two-dimensional wing ribs. The work presents the first step towards the systematic design of three-dimensional morphing wing sections.

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Gong, Xiaobo, Chengwei Ren, Jian Sun, Peiru Zhang, Lei Du y Fang Xie. "3D Zero Poisson’s Ratio Honeycomb Structure for Morphing Wing Applications". Biomimetics 7, n.º 4 (12 de noviembre de 2022): 198. http://dx.doi.org/10.3390/biomimetics7040198.

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Such as flying creatures, morphing aircraft can expand their aerodynamic flight envelopes by changing aerodynamic shapes, significantly improving the scope of application and flight efficiency. A novel 3D Zero Poisson’s Ratio (ZPR) honeycomb structure is designed to meet the flexible deformation requirements of morphing aircraft. The 3D ZPR honeycomb can deform in the three principal directions with smooth borders and isotropic. Analytical models related to the uniaxial and shear stiffnesses are derived using the Timoshenko beam model and validated using the quasi-static compression test. The Poisson’s ratio of the 3D ZPR honeycomb structure has an average value of 0.0038, proving the feasibility of the 3D ZPR concept. Some pneumatic muscle fibers are introduced into the system as flexible actuators to drive the active deformation of the 3D ZPR honeycomb. The active 3D ZPR honeycomb can contract by 14.4%, unidirectionally bend by 7.8°, and multi-directions bend under 0.4 Mpa pressure. Both ZPR properties and flexible morphing capabilities show the potential of this novel 3D ZPR configuration for morphing wings.

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Bishay, Peter L., Matthew Brody, David Podell, Francisco Corte Garcia, Erik Munoz, Evette Minassian y Kevin Bradley. "3D-Printed Bio-Inspired Mechanisms for Bird-like Morphing Drones". Applied Sciences 13, n.º 21 (29 de octubre de 2023): 11814. http://dx.doi.org/10.3390/app132111814.

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Birds have unique flight characteristics unrivaled by even the most advanced drones due in part to their lightweight morphable wings and tail. Advancements in 3D-printing, servomotors, and composite materials are enabling more innovative airplane designs inspired by avian flight that could lead to optimized flight characteristics compared to traditional designs. Morphing technology aims to improve the aerodynamic and power efficiencies of aircraft by eliminating traditional control surfaces and implementing wings with significant shape-changing ability. This work proposes designs of 3D-printed, bio-inspired, non-flapping, morphing wing and tail mechanisms for unmanned aerial vehicles. The proposed wing design features a corrugated flexible 3D-printed structure to facilitate sweep morphing with expansion and contraction of the attached artificial feathers. The proposed tail feather expansion mechanism features a 3D-printed flexible structure with circumferential corrugation. The various available 3D-printing materials and the capability to print geometrically complex components have enabled the realization of the proposed morphing deformations without demanding relatively large actuation forces. Proof-of-concept models were manufactured and tested to demonstrate the effectiveness of the selected materials and actuators in achieving the desired morphing deformations that resemble those of seagulls.

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Lavine, Marc S. "3D texture morphing for camouflage". Science 358, n.º 6360 (12 de octubre de 2017): 183.4–183. http://dx.doi.org/10.1126/science.358.6360.183-d.

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Sato, Yoichi, Imari Sato y Katsushi Ikeuchi. "3D shape and reflectance morphing". Systems and Computers in Japan 29, n.º 3 (marzo de 1998): 28–38. http://dx.doi.org/10.1002/(sici)1520-684x(199803)29:3<28::aid-scj4>3.0.co;2-r.

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Imam, Syed Sarim, Afzal Hussain, Mohammad A. Altamimi y Sultan Alshehri. "Four-Dimensional Printing for Hydrogel: Theoretical Concept, 4D Materials, Shape-Morphing Way, and Future Perspectives". Polymers 13, n.º 21 (8 de noviembre de 2021): 3858. http://dx.doi.org/10.3390/polym13213858.

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The limitations and challenges possessed in static 3D materials necessitated a new era of 4D shape-morphing constructs for wide applications in diverse fields of science. Shape-morphing behavior of 3D constructs over time is 4D design. Four-dimensional printing technology overcomes the static nature of 3D, improves substantial mechanical strength, and instills versatility and clinical and nonclinical functionality under set environmental conditions (physiological and artificial). Four-dimensional printing of hydrogel-forming materials possesses remarkable properties compared to other printing techniques and has emerged as the most established technique for drug delivery, disease diagnosis, tissue engineering, and biomedical application using shape-morphing materials (natural, synthetic, semisynthetic, and functionalized) in response to single or multiple stimuli. In this article, we addressed a fundamental concept of 4D-printing evolution, 4D printing of hydrogel, shape-morphing way, classification, and future challenges. Moreover, the study compiled a comparative analysis of 4D techniques, 4D products, and mechanical perspectives for their functionality and shape-morphing dynamics. Eventually, despite several advantages of 4D technology over 3D technique in hydrogel fabrication, there are still various challenges to address with using current advanced and sophisticated technology for rapid, safe, biocompatible, and clinical transformation from small-scale laboratory (lab-to-bed translation) to commercial scale.

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BAJZAT, Lucian-Nicolae y Sebastian-Marian ZAHARIA. "DESIGN, ANALYSIS AND 3D PRINTING OF A MORPHING WING PROTOTYPE". Review of the Air Force Academy XXI, n.º 1 (30 de octubre de 2023): 5–14. http://dx.doi.org/10.19062/1842-9238.2023.21.1.1.

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In this study, two different wing morphing models were chosen for design and testing. The selected models allow for significant considerations due to their airfoil geometry variation and wingspan variation. The purpose of choosing these prototypes was to highlight the benefits of the morphing wing concept as applied to aircraft, and further applied to UAVs, as well as to light and ultra-light aircraft. In order to confirm these advantages that support the reasons for applying the concept, both structural and aerodynamic analyses were carried out. Finally, the morphing wing model with chord extension was physically manufactured by means of a 3D printing process and tested to validate the proposed concept.

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Yan, Han-Bing, Shi-Min Hu y Ralph R. Martin. "3D Morphing Using Strain Field Interpolation". Journal of Computer Science and Technology 22, n.º 1 (enero de 2007): 147–55. http://dx.doi.org/10.1007/s11390-007-9020-z.

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Alsaidi, Bashir, Woong Yeol Joe y Muhammad Akbar. "Simplified 2D Skin Lattice Models for Multi-Axial Camber Morphing Wing Aircraft". Aerospace 6, n.º 8 (13 de agosto de 2019): 90. http://dx.doi.org/10.3390/aerospace6080090.

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Conventional fixed wing aircraft require a selection of certain thickness of skin material that guarantees structural strength for aerodynamic loadings in various flight modes. However, skin structures of morphing wings are expected to be flexible as well as stiff to structural and coupled aerodynamic loadings from geometry change. Many works in the design of skin structures for morphing wings consider only geometric compliance. Among many morphing classifications, we consider camber rate change as airfoil morphing that changes its rate of the airfoil that induces warping, twisting, and bending in multi-axial directions, which makes compliant skin design for morphing a challenging task. It is desired to design a 3D skin structure for a morphing wing; however, it is a computationally challenging task in the design stage to optimize the design parameters. Therefore, it is of interest to establish the structure design process in rapid approaches. As a first step, the main theme of this study is to numerically validate and suggest simplified 2D plate models that fully represents multi-axial 3D camber morphing. In addition to that, the authors show the usage of lattice structures for the 2D plate models’ skin that will lead to on-demand design of advanced structure through the modification of selected structure.

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Tesis sobre el tema "3d Morphing"

Mocanu, Bogdan Cosmin. "3D mesh morphing". Phd thesis, Institut National des Télécommunications, 2012. http://tel.archives-ouvertes.fr/tel-00836048.

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This Ph.D. thesis specifically deals with the issue of metamorphosis of 3D objects represented as 3D triangular meshes. The objective is to elaborate a complete 3D mesh morphing methodology which ensures high quality transition sequences, smooth and gradual, consistent with respect to both geometry and topology, and visually pleasant. Our first contributions concern the two different approaches of parameterization: a new barycentric mapping algorithm based on the preservation of the mesh length ratios, and a spherical parameterization technique, exploiting a Gaussian curvature criterion. The experimental evaluation, carried out on 3D models of various shapes, demonstrated a considerably improvement in terms of mesh distortion for both methods. In order to align the features of the two input models, we have considered a warping technique based on the CTPS C2a radial basis function suitable to deform the models embeddings in the parametric domain maintaining a valid mapping through the entire movement process. We show how this technique has to be adapted in order to warp meshes specified in the parametric domains. A final contribution consists of a novel algorithm for constructing a pseudo-metamesh that avoids the complex process of edge intersections encountered in the state-of-the-art. The obtained mesh structure is characterized by a small number of vertices and it is able to approximate both the source and target shapes. The entire mesh morphing framework has been integrated in an interactive application that allows the user to control and visualize all the stages of the morphing process

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Mocanu, Bogdan Cosmin. "3D mesh morphing". Electronic Thesis or Diss., Evry, Institut national des télécommunications, 2012. http://www.theses.fr/2012TELE0049.

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Cette thèse de doctorat aborde spécifiquement le problème de la métamorphose entre différents maillages 3D, qui peut assurer un niveau élevé de qualité pour la séquence de transition, qui devrait être aussi lisse et progressive que possible, cohérente par rapport à la géométrie et la topologie, et visuellement agréable. Les différentes étapes impliquées dans le processus de transformation sont développées dans cette thèse. Nos premières contributions concernent deux approches différentes des paramétrisations: un algorithme de mappage barycentrique basé sur la préservation des rapports de longueur et une technique de paramétrisation sphérique, exploitant la courbure Gaussien. L'évaluation expérimentale, effectuées sur des modèles 3D de formes variées, démontré une amélioration considérable en termes de distorsion maillage pour les deux méthodes. Afin d’aligner les caractéristiques des deux modèles d'entrée, nous avons considéré une technique de déformation basée sur la fonction radial CTPS C2a approprié pour déformer le mappage dans le domaine paramétrique et maintenir un mappage valide a travers le processus de mouvement. La dernière contribution consiste d’une une nouvelle méthode qui construit un pseudo metamaillage qui évite l'exécution et le suivi des intersections d’arêtes comme rencontrées dans l'état-of-the-art. En outre, notre méthode permet de réduire de manière drastique le nombre de sommets normalement nécessaires dans une structure supermesh. Le cadre générale de métamorphose a été intégré dans une application prototype de morphing qui permet à l'utilisateur d'opérer de façon interactive avec des modèles 3D et de contrôler chaque étape du processus
This Ph.D. thesis specifically deals with the issue of metamorphosis of 3D objects represented as 3D triangular meshes. The objective is to elaborate a complete 3D mesh morphing methodology which ensures high quality transition sequences, smooth and gradual, consistent with respect to both geometry and topology, and visually pleasant. Our first contributions concern the two different approaches of parameterization: a new barycentric mapping algorithm based on the preservation of the mesh length ratios, and a spherical parameterization technique, exploiting a Gaussian curvature criterion. The experimental evaluation, carried out on 3D models of various shapes, demonstrated a considerably improvement in terms of mesh distortion for both methods. In order to align the features of the two input models, we have considered a warping technique based on the CTPS C2a radial basis function suitable to deform the models embeddings in the parametric domain maintaining a valid mapping through the entire movement process. We show how this technique has to be adapted in order to warp meshes specified in the parametric domains. A final contribution consists of a novel algorithm for constructing a pseudo-metamesh that avoids the complex process of edge intersections encountered in the state-of-the-art. The obtained mesh structure is characterized by a small number of vertices and it is able to approximate both the source and target shapes. The entire mesh morphing framework has been integrated in an interactive application that allows the user to control and visualize all the stages of the morphing process

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Zhang, Xiao. "Data-driven human body morphing". Thesis, Texas A&M University, 2005. http://hdl.handle.net/1969.1/2655.

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This thesis presents an efficient and biologically informed 3D human body morphing technique through data-driven alteration of standardized 3D models. The anthropometric data is derived from a large empirical database and processed using principal component analysis (PCA). Although techniques using PCA are relatively commonplace in computer graphics, they are mainly used for scientific visualizations and animation. Here we focus on uncovering the underlying mathematical structure of anthropometric data and using it to build an intuitive interface that allows the interactive manipulation of body shape within the normal range of human variation. We achieve weight/gender based body morphing by using PCA. First we calculate the principal vector space of the original data. The data then are transformed into a new orthogonal multidimensional space. Next, we reduce the dimension of the data by only keeping the components of the most significant principal vectors. We then fit a curve through the original data points and are able to generate a new human body shape by inversely transforming the data from principal vector space back to the original measuring data space. Finally, we sort the original data by the body weight, calculating males and females separately. This enables us to use weight and gender as two intuitive controls for body morphing. The Deformer program is implemented using the programming language C++ with OPENGL and FLTK API. 3D and human body models are created using Alias MayaTm.

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Chu, Chen. "Design synthesis for morphing 3D meso-scale structure". Thesis, Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/34676.

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Rapid prototyping (RP) can be used to make complex shapes with very little or even no constraint on the form of the parts. New design methods are needed for parts that can take advantage of the unique capabilities of RP. Although current synthesis methods can successfully solve simple design problems, practical applications with thousands to millions elements are prohibitive to generate solution for. Two factors are considered. One is the number of design variables; the other is the optimization method. To reduce the number of design variables, parametric approach is introduced. Control diameters are used to control all strut size across the entire structure by utilizing a concept similar to control vertices and Bezier surface. This operation allows the number of design variables to change from the number of elements to a small set of coefficients. In lattice structure design, global optimization methods are popular and widely used. These methods use heuristic strategies to search the design space and thus perform, as oppose to traditional mathematical programming (MP) methods, a better global search. This work propose that although traditional MP methods find local optimum near starting point, given a quick convergence rate, it will be more efficient to perform such method multiple times to integrate global search than using a global optimization method. Particle Swarm Optimization and Levenburg-Marquardt are chosen to perform the experiments.

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Chabaud, Guillaume. "3D and 4D printing of high performance continuous synthetic and natural fibre composites for structural and morphing applications". Thesis, Lorient, 2020. http://www.theses.fr/2020LORIS563.

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L’impression 3D et plus spécifiquement la technique de Fused Filament Fabrication (FFF) de matériaux composites à renforts continus est un domaine d’étude en plein essor visant à pallier les faibles performances mécaniques rencontrées par les composites élaborés en impression 3D et ainsi ouvrir les champs d’applications (aéronautique, course au large…). Autre tendance, l’impression 4D qui permet de développer des matériaux stimulables (capteurs et/ou actionneurs) et d’envisager des structures architecturées complexes se déformant sous l’action de divers stimuli (humidité, électricité, température, pression…). Le travail de thèse s’inscrit dans ce contexte pluriel et vise à développer de nouveaux matériaux multifonctionnels par impression 3D et 4D. Dans un premier temps, le travail de thèse a pour objectif scientifique de comprendre les relations entre le procédé, la microstructure induite, les performances mécaniques et hygro-mécaniques en vue d’applications structurelles (aéronautique, course au large …) sur des matériaux composites renforcés de fibres synthétiques (carbone et verre) et naturelles (lin). La deuxième partie des travaux de thèse vise à développer des matériaux composites hygromorphes renforcés de fibres continues (synthétiques et naturelles) par impression 4D avec une architecture en bilame bio-inspirée de la pomme de pin. Le caractère conducteur des fibres de carbone est utilisé pour développer de nouveaux actionneurs electro- thermo-hygromorphes présentant un actionnement contrôlé et accéléré par rapport aux hygromorphes classiques. Enfin, la liberté de design offerte par l’impression 3D a été utilisée pour contrôler localement la rigidité et l’actionnement d’actionneurs composites renforcés de fibres de lin continues
3D printing and especially Fused Filament Fabrication (FFF) technology for composite materials reinforced by continuous fibers is an emerging research field which aims to enhance the mechanical performance of 3D printing structures and to widen the field of application (aerospace, sailing…). Another trend, 3D printing allows to develop stimulable materials (sensor and/or actuators) and to consider parts with complex architecture that can be deployed under various stimulation (electricity temperature, pressure…). The present work is therefore part of this context and aims to develop new multi-functional materials elaborated by 4D printing. First, the scientific objective of this work is to better understand the relationship between the process, the induced microstructure, mechanical and the hygromechanical performances in order to target structural applications (aeronautic, sailing) for composite materials reinforced with synthetic fibers (carbon and glass) and natural fibers (flax). The second part of this work aimed to develop hygromorphic composites reinforced with continuous fibers (synthetic and natural) by 4D printing with a bioinspired bilayer architecture inspired by the pinecone scale. The conductive behavior of carbon fiber was used to create new electro-thermo-hygromorph actuators with controlled and accelerated actuation compared to conventional hygromorphs. Finally, the design freedom provided by 4D printing made it possible to control the local stiffness and actuation of composite actuators reinforced with continuous flax fiber

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Erdogdu, Aysu. "Morphable 3d Facial Animation Based On Thin Plate Splines". Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12611910/index.pdf.

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The aim of this study is to present a novel three dimensional (3D) facial animation method for morphing emotions and facial expressions from one face model to another. For this purpose, smooth and realistic face models were animated with thin plate splines (TPS). Neutral face models were animated and compared with the actual expressive face models. Neutral and expressive face models were obtained from subjects via a 3D face scanner. The face models were preprocessed for pose and size normalization. Then muscle and wrinkle control points were located to the source face with neutral expression according to the human anatomy. Facial Action Coding System (FACS) was used to determine the control points and the face regions in the underlying model. The final positions of the control points after a facial expression were received from the expressive scan data of the source face. Afterwards control points were transferred to the target face using the facial landmarks and TPS as the morphing function. Finally, the neutral target face was animated with control points by TPS. In order to visualize the method, face scans with expressions composed of a selected subset of action units found in Bosphorus Database were used. Five lower-face and three-upper face action units are simulated during this study. For experimental results, the facial expressions were created on the 3D neutral face scan data of a human subject and the synthetic faces were compared to the subject&rsquo
s actual 3D scan data with the same facial expressions taken from the dataset.

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Leonardi, Valentin. "Modélisation dynamique et suivi de tumeur dans le volume rénal". Thesis, Aix-Marseille, 2014. http://www.theses.fr/2014AIXM4056/document.

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Ce travail de thèse porte sur la modélisation dynamique 3D du rein et le suivi d’une tumeur de cet organe. Il s’inscrit dans le projet KiTT (Kidney Tumor Tracking) qui regroupe des chercheurs issus de plusieurs domaines : la modélisation géométrique, la radiologie et l’urologie. Le cadre de cette thèse suit une tendance de mini-invasivité des gestes chirurgicaux observée ces dernières années (HIFU, coelioscopie). Sa finalité est d’aboutir à un nouveau protocole de destruction de tumeurs rénales totalement non-invasif, par la diffusion d’agents physiques (ondes d’ultrasons) à travers la peau et focalisés sur la tumeur. Devant le mouvement et la déformation que le rein présente au cours du cycle respiratoire, la problématique de ces travaux de recherche est de connaître en permanence la position de la tumeur afin d’ajuster à moyen terme la diffusion des ondes en conséquence
This Ph.D. thesis deals with the 3D dynamic modeling of the kidney and tracking a tumor of this organ. It is in line with the KiTT project (Kidney Tumor Tracking) which gathers researchers from different fileds: geometric modeling, radiology and urology. This work arised from the tendency of nowadays surgical gestures to be less and less invasive (HIFU, coelioscopy). Its goal is to result in a totally non-invasive protocol of kidney tumors eradication by transmitting ultrasound waves through the skin without breaking in it. As the kidney presents motions and deformations during the breathing phase, the main issue is to know the kidney and tumor positions at any time in order to adjust the waves accordingly

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DE, SIMONE MATTEO. "Planning Plastic Surgery in 3D. An innovative approach and tool". Doctoral thesis, Politecnico di Torino, 2013. http://hdl.handle.net/11583/2507843.

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Face plastic surgery (PS) plays a major role in today medicine. Both for reconstructive and cosmetic surgery, achieving harmony of facial features is an important, if not the major goal. Several systems have been proposed for presenting to patient and surgeon possible outcomes of the surgical procedure. In this work, we present a new 3D system able to automatically suggest, for selected facial features as nose, chin, etc., shapes that aesthetically match the patient’s face. The basic idea is suggesting shape changes aimed to approach similar but more harmonious faces. To this goal, our system compares the 3D scan of the patient with a database of scans of harmonious faces, excluding the feature to be corrected. Then, the corresponding features of the k most similar harmonious faces, as well as their average, are suitably pasted onto the patient’s face, producing k+1 aesthetically effective surgery simulations. The system has been fully implemented and tested. To demonstrate the system, a 3D database of harmonious faces has been collected and a number of PS treatments have been simulated. The ratings of the outcomes of the simulations, provided by panels of human judges, show that the system and the underlying idea are effective.

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Pecorella, Daniele. "Methodology for the design and optimization of a morphing wing droop-nose structure for greener aircraft". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022.

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Droop-Nose Leading Edge (DNLE) morphing wings are one of the most promising devices in order to achieve aerodynamic drag and noise reduction during take-off and landing phases. An accurate design of these structures could lead to the decrease of aircraft fuel consumption in the perspective of reaching a greener aviation, following the objectives indicated by Flightpath 2050 issued by the E.U. However, due to the challenges related to the realization of this technology and TRL reached, DNLE are more likely implemented in Unmanned Aerial Systems (UAS) for testing and evaluation purposes. In the present study, an optimization methodology for the DNLE composite laminate skin and morphing mechanism structure is proposed and applied to a study case represented by the UAS-S45 aircraft. The work starts from the morphing leading edge structure developed by the LARCASE laboratory at ETS Montreal. The results showed that by means of the optimization strategy adopted, the force required on the actuator mechanism is 88% lower than the original design. A significant improvement on the profile smoothness along its section and in the spanwise direction in morphing conditions has been obtained too. However, further investigations are still needed in order to achieve a more appropriate morphing shape. Despite this, it appears from the results obtained that the proposed methodology can be useful to tackle the DNLE design problem in an effective and efficient way. What developed in this work has been conceived to support the investigation of DNLE in the small leading edge profiles typical of the UAS. In this way, an easier procedure for the set up of the design flow, and a decrease in the computational effort for the optimization process can be obtained. An experimental validation of the results obtained is currently being performed at ETS, and future development regards the assessment of the errors of the numeric procedure herein presented respect to real data.

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Galland, Florent. "An adaptive model reduction approach for 3D fatigue crack growth in small scale yielding conditions". Phd thesis, INSA de Lyon, 2011. http://tel.archives-ouvertes.fr/tel-00596397.

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It has been known for decades that fatigue crack propagation in elastic-plastic media is very sensitive to load history since the nonlinear behavior of the material can have a great influence on propagation rates. However, the raw computation of millions of fatigue cycles with nonlinear material behavior on tridimensional structures would lead to prohibitive calculation times. In this respect, we propose a global model reduction strategy, mixing both the a posteriori and a priori approaches in order to drastically decrease the computational cost of these types of problems. First, the small scale yielding hypothesis is assumed, and an a posteriori model reduction of the plastic behavior of the cracked structure is performed. This reduced model provides incrementally the plastic state in the vicinity of the crack front, from which the instantaneous crack growth rate is inferred. Then an additional a priori model reduction technique is used to accelerate even more the time to solution of the whole problem. This a priori approach consists in building incrementally and without any previous calculations a reduced basis specific to the considered test-case, by extracting information from the evolving displacement field of the structure. Then the displacement solutions of the updated crack geometries are sought as linear combinations of those few basis vectors. The numerical method chosen for this work is the finite element method. Hence, during the propagation the spatial discretization of the model has to be updated to be consistent with the evolving crack front. For this purpose, a specific mesh morphing technique is used, that enables to discretize the evolving model geometry with meshes of the same topology. This morphing method appears to be a key component of the model reduction strategy. Finally, the whole strategy introduced above is embedded inside an adaptive approach, in order to ensure the quality of the results with respect to a given accuracy. The accuracy and the efficiency of this global strategy have been shown through several examples; either in bidimensional and tridimensional cases for model crack propagation, including the industrial example of a helicopter structure.

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Libros sobre el tema "3d Morphing"

Bousquet, Michele. Morphing & animation: Release 3 and 4. New York: Delmar Publishers, 1995.

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Photo-based 3D graphics in C++: Compositing, warping, morphing, and other digital special effects. New York: J. Wiley, 1995.

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Awesome Super Nintendo Secrets 4. Lahaina, HI: Sandwich Islands Publishing, 1995.

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Melenhorst, Glenn y Michele Bousquet. Morphing & Animation: Release 3 and 4 (3d Studio Tips & Tricks Series/Book and Disk). Delmar Thomson Learning, 1994.

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Capítulos de libros sobre el tema "3d Morphing"

Buchin, Kevin, Will Evans, Fabrizio Frati, Irina Kostitsyna, Maarten Löffler, Tim Ophelders y Alexander Wolff. "Morphing Planar Graph Drawings Through 3D". En Lecture Notes in Computer Science, 80–95. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-23101-8_6.

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Jelinek, David y Camillo J. Taylor. "Quasi-Dense Motion Stereo for 3D View Morphing". En Virtual and Augmented Architecture (VAA’01), 219–29. London: Springer London, 2001. http://dx.doi.org/10.1007/978-1-4471-0337-0_23.

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Xianhai, Meng, Li Jigang y Yang Qin. "3D Structural Geological Modeling Based on Morphing Field". En Lecture Notes in Electrical Engineering, 149–57. London: Springer London, 2012. http://dx.doi.org/10.1007/978-1-4471-2386-6_20.

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Astheimer, Peter y Christian Knöpfle. "3D-Morphing and its Application to Virtual Reality". En Eurographics, 85–93. Vienna: Springer Vienna, 1996. http://dx.doi.org/10.1007/978-3-7091-7488-3_9.

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Istomina, Aleksandra, Elena Arseneva y Rahul Gangopadhyay. "Morphing Tree Drawings in a Small 3D Grid". En WALCOM: Algorithms and Computation, 85–96. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-96731-4_8.

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Staten, Matthew L., Steven J. Owen, Suzanne M. Shontz, Andrew G. Salinger y Todd S. Coffey. "A Comparison of Mesh Morphing Methods for 3D Shape Optimization". En Proceedings of the 20th International Meshing Roundtable, 293–311. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-24734-7_16.

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Stindel, E., N. Perrin, J. L. Briard, S. Lavallée, C. Lefevre y J. Troccaz. "Bone Morphing: 3D Reconstruction without Pre- or Intra-Operative Imaging". En Navigation and MIS in Orthopedic Surgery, 36–43. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-36691-1_5.

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Ross, Miriam. "Transformative Bodies in 3D Cinema: Computer Generated Morphing and Extra-sensory Depth Cues". En Die ästhetisch-narrativen Dimensionen des 3D-Films, 123–36. Wiesbaden: Springer Fachmedien Wiesbaden, 2015. http://dx.doi.org/10.1007/978-3-658-09422-5_8.

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Samir, C., P. Van Dooren, D. Laurent, K. A. Gallivan y P. A. Absil. "Elastic Morphing of 2D and 3D Objects on a Shape Manifold". En Lecture Notes in Computer Science, 563–72. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-02611-9_56.

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Patel, Krunalkumar N., Anirudh Manoj, Mohammed Shams H. Sayed, K. Shah Kaushal, Swayam J. Shah y Harshit K. Dave. "Post Processing 3D Printed UAV Wing Enabling Trailing Edge Morphing Technology". En Lecture Notes in Mechanical Engineering, 791–802. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-7787-8_63.

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Actas de conferencias sobre el tema "3d Morphing"

Mocanu, Bogdan y Titus Zaharia. "A complete framework for 3D mesh morphing". En the 11th ACM SIGGRAPH International Conference. New York, New York, USA: ACM Press, 2012. http://dx.doi.org/10.1145/2407516.2407558.

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Oishi, Kazuma, Makoto Saito, Nishita Anandan, Kevin Kadooka y Minoru Taya. "Numerical study on 3D composite morphing actuators". En SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, editado por Yoseph Bar-Cohen. SPIE, 2015. http://dx.doi.org/10.1117/12.2085603.

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"A METHOD FOR 3D MORPHING USING SLICES". En International Conference on Computer Graphics Theory and Applications. SciTePress - Science and and Technology Publications, 2009. http://dx.doi.org/10.5220/0001786602920301.

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Kaneko, Kosuke y Yoshihiro Okada. "Skeleton Based 3D Model Morphing Using Barycentric Map". En 2008 5th International Conference on Computer Graphics, Imaging and Visualisation (CGIV). IEEE, 2008. http://dx.doi.org/10.1109/cgiv.2008.57.

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Moulton, Ben y Douglas F. Hunsaker. "3D-Printed Wings with Morphing Trailing-Edge Technology". En AIAA Scitech 2021 Forum. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2021. http://dx.doi.org/10.2514/6.2021-0351.

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Zhong, Yueqi, Hongyan Liu, Juanfen Jiang y Li Liu. "3D Human Body Morphing Based on Shape Interpolation". En 2009 First International Conference on Information Science and Engineering. IEEE, 2009. http://dx.doi.org/10.1109/icise.2009.3.

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Zhu, Zun-Jian y Ming-Yong Pang. "Morphing 3D Mesh Models Based on Spherical Parameterization". En 2009 International Conference on Multimedia Information Networking and Security. IEEE, 2009. http://dx.doi.org/10.1109/mines.2009.29.

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Wang, Cong, Sreepathy Sridhar, Jonathan G. Terry, Ansu Sun, Zhenghong Li, Haibao Lv, Ben B. Xu y Yifan Li. "Advanced 3D Morphing Transducers by Smart Hydrogel Patterning". En 2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems & Eurosensors XXXIII (TRANSDUCERS & EUROSENSORS XXXIII). IEEE, 2019. http://dx.doi.org/10.1109/transducers.2019.8808453.

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Bansal, Sumukh y Aditya Tatu. "Lie bodies based 3D shape morphing and interpolation". En the 15th ACM SIGGRAPH European Conference. New York, New York, USA: ACM Press, 2018. http://dx.doi.org/10.1145/3278471.3278477.

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Mocanu, Bogdan y Titus Zaharia. "A pseudo metamesh approach for 3D mesh morphing". En 2013 IEEE International Conference on Consumer Electronics (ICCE). IEEE, 2013. http://dx.doi.org/10.1109/icce.2013.6486904.

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