Academic literature on the topic 'Multistable structures'

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Journal articles on the topic "Multistable structures"

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Xu, Xian, and Yaozhi Luo. "Multistable Tensegrity Structures." Journal of Structural Engineering 137, no. 1 (January 2011): 117–23. http://dx.doi.org/10.1061/(asce)st.1943-541x.0000281.

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Norman, A. D., M. R. Golabchi, K. A. Seffen, and Simon D. Guest. "Multistable Textured Shell Structures." Advances in Science and Technology 54 (September 2008): 168–73. http://dx.doi.org/10.4028/www.scientific.net/ast.54.168.

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Multistable structures are a promising basis for reconfigurable systems. A multistable structure will remain in one of its stable configurations until actuation forces it to move to another stable configuration. This paper will describe a promising method of forming structures with useful multiple stable states by using prestressed textured shell surfaces. Textured shell structures have features at a scale intermediate between the global structural scale, and the material scale, and can have some remarkable structural properties. This paper will describe two simple examples: a globally flat, but corrugated shell, and a globally curved, doubly corrugated shell. Both structures show additional stable equilibrium configurations that would not be possible without the textured surface.
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Böhm, V., S. Sumi, T. Kaufhold, and K. Zimmermann. "Compliant multistable tensegrity structures." Mechanism and Machine Theory 115 (September 2017): 130–48. http://dx.doi.org/10.1016/j.mechmachtheory.2017.04.013.

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Loukaides, Evripides G., Rhodri W. C. Lewis, and Christopher R. Bowen. "Additive manufacture of multistable structures." Smart Materials and Structures 28, no. 2 (January 21, 2019): 02LT02. http://dx.doi.org/10.1088/1361-665x/aae4f6.

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Jeong, Hoon Yeub, Soo-Chan An, Yeonsoo Lim, Min Ji Jeong, Namhun Kim, and Young Chul Jun. "3D and 4D Printing of Multistable Structures." Applied Sciences 10, no. 20 (October 16, 2020): 7254. http://dx.doi.org/10.3390/app10207254.

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Three-dimensional (3D) printing is a new paradigm in customized manufacturing and allows the fabrication of complex structures that are difficult to realize with other conventional methods. Four-dimensional (4D) printing adds active, responsive functions to 3D-printed components, which can respond to various environmental stimuli. This review introduces recent ideas in 3D and 4D printing of mechanical multistable structures. Three-dimensional printing of multistable structures can enable highly reconfigurable components, which can bring many new breakthroughs to 3D printing. By adopting smart materials in multistable structures, more advanced functionalities and enhanced controllability can also be obtained in 4D printing. This could be useful for various smart and programmable actuators. In this review, we first introduce three representative approaches for 3D printing of multistable structures: strained layers, compliant mechanisms, and mechanical metamaterials. Then, we discuss 4D printing of multistable structures that can help overcome the limitation of conventional 4D printing research. Lastly, we conclude with future prospects.
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Zhang, Ran, Thomas Auzinger, and Bernd Bickel. "Computational Design of Planar Multistable Compliant Structures." ACM Transactions on Graphics 40, no. 5 (October 31, 2021): 1–16. http://dx.doi.org/10.1145/3453477.

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This article presents a method for designing planar multistable compliant structures. Given a sequence of desired stable states and the corresponding poses of the structure, we identify the topology and geometric realization of a mechanism—consisting of bars and joints—that is able to physically reproduce the desired multistable behavior. In order to solve this problem efficiently, we build on insights from minimally rigid graph theory to identify simple but effective topologies for the mechanism. We then optimize its geometric parameters, such as joint positions and bar lengths, to obtain correct transitions between the given poses. Simultaneously, we ensure adequate stability of each pose based on an effective approximate error metric related to the elastic energy Hessian of the bars in the mechanism. As demonstrated by our results, we obtain functional multistable mechanisms of manageable complexity that can be fabricated using 3D printing. Further, we evaluated the effectiveness of our method on a large number of examples in the simulation and fabricated several physical prototypes.
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Jianguo, Cai, Zhou Yuhang, Feng Jian, and Xu Yixiang. "A bistable rolling joint for multistable structures." Mechanics Research Communications 79 (January 2017): 1–6. http://dx.doi.org/10.1016/j.mechrescom.2016.11.003.

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Norman, A. D., K. A. Seffen, and S. D. Guest. "Multistable corrugated shells." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 464, no. 2095 (March 10, 2008): 1653–72. http://dx.doi.org/10.1098/rspa.2007.0216.

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We have been constructing and investigating multistable corrugated shell structures. The multistability arises from the interaction between internal prestresses created during forming and nonlinear geometrical changes during deformation. Using a simplified analytical elastic model, we homogenize the properties of the shells through simultaneously considering the material on two scales: the ‘local’ scale of the isotropic material; and the ‘global’ scale of the corrugated sheet, which is then modelled as an equivalent flat sheet with anisotropic properties. This model is applied to simulate two modes of bistability observed in prototypes: first, prestressed corrugated shells that, when buckled, can coil up into a tube repeatably and reversibly; and second, corrugated sheets with a symmetry-breaking ‘twisting’ curvature. The model gives an intuitive understanding of the behaviour, and has enabled us to understand forming processes that give the behaviour we wish, including tristable shells that combine both bistable modes.
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Melancon, David, Benjamin Gorissen, Carlos J. García-Mora, Chuck Hoberman, and Katia Bertoldi. "Multistable inflatable origami structures at the metre scale." Nature 592, no. 7855 (April 21, 2021): 545–50. http://dx.doi.org/10.1038/s41586-021-03407-4.

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Yi, Shenghui, Lu Shen, Chih-Yung Wen, Xiaoqiao He, and Jian Lu. "Aerodynamic Performance of a Nanostructure-Induced Multistable Shell." Aerospace 8, no. 11 (November 18, 2021): 350. http://dx.doi.org/10.3390/aerospace8110350.

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Multistable shells that have the ability to hold more than one stable configuration are promising for adaptive structures, especially for airfoil. In contrast to existing studies on bistable shells, which are well demonstrated by the Venus flytrap plant with the ability to feed itself, this work experimentally studies the aerodynamic response of various stable configurations of a nanostructure-induced multistable shell. This multistable shell is manufactured by using nanotechnology and surface mechanical attrition treatment (SMAT) to locally process nine circular zones in an original flat plate. The aerodynamic responses of eight stable configurations of the developed multistable shell, including four twisted configurations and four untwisted configurations with different cambers, are visually captured and quantitively measured in a wind tunnel. The results clearly demonstrate the feasibility of utilizing different controllable configurations to adjust the aerodynamic performance of the multistable shell.
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Dissertations / Theses on the topic "Multistable structures"

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Santer, Matthew James. "Design of multistable structures." Thesis, University of Cambridge, 2006. https://www.repository.cam.ac.uk/handle/1810/252021.

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Cui, Yuefeng. "Adaptive multistable flexible composite structures." Thesis, Imperial College London, 2015. http://hdl.handle.net/10044/1/25513.

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A composite laminate with unsymmetric layup may exhibit two distinct stable configurations at room temperature due to the residual thermal stresses imparted during curing. This bistability leads unsymmetric composite laminates to be good candidates for adaptive flexible structures in particular for the fields of aerospace and aircraft. To extend the application potential of bistable composite laminates, the multistable behaviour of continuous compound composite surfaces are investigated. Two connection approaches are presented in this research. By tailoring the asymmetric bistability of indi- vidual composite elements, continuous surfaces composed of series-connected bistable composite shells demonstrate a high degree of multistability. This model can be developed to design longer composite surfaces possessing more stable shapes. In addition, a high degree of multistability is achieved by connecting square composite elements in a tessellated feature. By reducing the interactions between adjacent elements, a tessellated surface composed of n bistable elements shows a theoretical maximum 2n stable shapes. Finally, potential applications of highly multistable composite surfaces are introduced. The proposed multistable designs improve the flexible functionality of the adaptive structures.
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Norman, Alexander David. "Multistable and morphing corrugated shell structures." Thesis, University of Cambridge, 2009. https://www.repository.cam.ac.uk/handle/1810/244988.

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'Compliant' structures, i. e., structures that undergo large deformations as part of their normal behaviour, can perform the function of a complex mechanism with just a single, or very few, components. When multistability is introduced into compliant structures, an even greater simplification can be made, with actuators and/ or locking mechanisms becoming redundant. Corrugated shells are commonly encountered at all scales of engineering, providing shell structures of a dramatically increased stiffness at little extra cost or weight. What is historically less understood is the compliant behaviour of corrugated shells. The topic of this thesis, therefore,' is the development and analysis of new categories of structure incorporating corrugations, utilising their compliancy to achieve morphing behaviours that are not otherwise possible. Three distinct categories of shell are studied: (i) 'flat' corrugated sheets, which are multistable under the action of internal stresses, 'snapping' between their flat state and a cylindrically coiled state: these shells are also capable of developing 'twisted' stable states. An algebraic model based on internal strain energy determines the conditions for the various modes of multistability for uniform changes in curvature throughout the shell, and a plastic flow model describes the formation of the internal stresses; (ii) 'curved' corrugated sheets, 'which can morph between shapes of differing Gaussian curvature without plastic deformation. Again, a simplified algebraic model describes their behaviour, as does a numerical model. These models consider the strong coupling that occurs between bending and stretching in corrugated shells; and (iii) 'doubly-corrugated ' sheets, similar to an eggbox in concept, which , again, can morph between shapes of different Gaussian curvature, and also exhibit synclastic bending behaviour. Some of the analyses performed on the curved corrugated sheets are also applied to these shells. The qualitative behaviour of the analytical models matches, in every detail considered, the behaviour observed in prototypes. Natural-mode analyses on the category (ii) and (iii) shells demonstrate that the interesting behaviour occurs at relatively low stiffnesses, implying that t his behaviour is potentially useful. Quantitatively, however, the analyses for categories (i) and (iii) above do not prove simple to verify. Physical tests compare the internal stresses of the category (i) shells to those predicted by the plastic flow analysis: the predicted stresses exceed those measured by, typically, 50 %, but it is not established whether the discrepancy is due to the simplifications in the model, inaccuracies in the crude test method or a flmv in om understanding. On its prediction of the curvatures created, the model is more successful. A test is more easily devised for the category (ii) shells, and measurements of the shape change are within 4 % of both the finite-element simulations and the simplified algebraic models over 90 % of the test range. In measuring forces, to test the constitutive relations produced; the accuracy is lower, largely due to the difference between our material model and the real properties of the polymer used: there is strong agreement between the finite element model and the algebraic model. In conclusion, this thesis is successful in generating new varieties of structure, which have a a wide potential for application. A broad range of designs and analyses are presented, describing the behaviour of these structures well enough that our understanding of them seems justified. Nonetheless, this work merely scratches the surface of what may be achieved in this field, demonstrating some of the potential of such shells and leaving much to be done in their further evaluation and development.
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Haldar, Ayan [Verfasser]. "Multistable morphing structures using variable stiffness laminates / Ayan Haldar." Hannover : Gottfried Wilhelm Leibniz Universität, 2020. http://d-nb.info/1216995230/34.

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Heymanns, Matthias. "Multistable Structures for Broad Bandwidth Vibration-based Energy Harvesters: An Analytical Design Investigation." Phd thesis, Studienbereich Mechanik, Technische Universität Darmstadt, 2015. https://tuprints.ulb.tu-darmstadt.de/5333/1/Dissertation_Heymanns.pdf.

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The field of vibrational energy harvesting aims to transform ambient mechanical energy into electrical energy. For example, this energy can be used to operate autonomous sensor units for structural health monitoring or to supply low power electronic devices. Robust energy harvesters that allow to harvest sufficient energy over a broad frequency range are crucial for these applications. One strategy to increase the bandwidth of energy harvesters and, thus, the robustness is the exploitation of multistable structures. This is due to their feature of showing large amplitude oscillations that result from snap-through actions (inter-well oscillations) in a significant frequency range. The aim of this thesis is to analyze different multistable energy harvester designs in order to optimize their performance and formulate design criteria. The considered designs are a bistable electromechanical beam, a bistable electromechanical composite plate and a newly proposed design of a multistable plate with four equilibria. Firstly, analytical models for the multistable energy harvesters are presented in order to assess their broad bandwidth harvesting capabilities. Analytical methods are applied to these models to investigate the underlying bifurcation behavior. Based on the analytical investigations, design criteria are formulated to describe the favorable harvesting domain. Numerical simulations are performed to supplement the analytical investigations. The differences of the considered structures are highlighted concerning robust and efficient harvesting by means of numerical simulations for different types of excitation. Experiments are carried out to complement the analytical and numerical analysis. The experiments establish the transferability of the numerical and analytical findings to real-world applications.
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Heymanns, Matthias [Verfasser], Peter [Akademischer Betreuer] Hagedorn, and Bernhard [Akademischer Betreuer] Schweizer. "Multistable Structures for Broad Bandwidth Vibration-based Energy Harvesters: An Analytical Design Investigation / Matthias Heymanns. Betreuer: Peter Hagedorn ; Bernhard Schweizer." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2015. http://d-nb.info/1112268979/34.

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Boddepalli, Srinivasarao. "Enhancement of field emission from multistage structure of carbon nanotube arrays." FIU Digital Commons, 2007. http://digitalcommons.fiu.edu/etd/1708.

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The field emission measurements for the multistage structured nanotubes (i.e., thin-multiwall and single wall carbon nanotubes grown on multiwall carbon nanotubes) were carried out and a low turn-on field of ~0.45 V/ μm, high emission current of 450 μA at a field of IV/μm and a large field enhancement factor of ~26200 were obtained. The thin multiwall carbon nanotubes (thin-MWNTs) and single wall carbon nanotubes (SWNTs) were grown on the regular arrays of vertically aligned multi wall carbon nanotubes (MWNTs) on porous silicon substrate by Chemical Vapor Deposition (CVD) method. The thin-MWNTs and SWNTs grown on MWNTs in this way have a multistage structure which gives higher enhancement of the electric field and hence the electron field emission.
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Rahman, Mohammad Shafiqur. "Characterising the Deformation Behaviour of Unbound Granular Materials in Pavement Structures." Doctoral thesis, KTH, Väg- och banteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-162277.

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Unbound granular materials (UGMs) used in the base and sub-base layers of flexible pavements play a significant role in the overall performance of the structure. Proper understanding and characterization of the deformation behaviour of UGMs in pavement structures are, therefore, vital for the design and maintenance of flexible pavements. In this study, the resilient deformation (RD) and the permanent deformation (PD) behaviour of UGMs were investigated for the better understanding and improved modelling of these deformation characteristics. The study is based on a series of repeated-load triaxial (RLT) tests carried out on several UGMs commonly used in pavement structures. Here, the influences of stress level and moisture content - two of the most significant factors affecting the deformation behaviour of UGMs - were analysed. The effects of the grain size distribution and the degree of compaction were also considered. The study on the RD behaviour indicated that the resilient stiffness (MR)of UGMs increases with the increased bulk stress level, which can be satisfactorily described by the k-θ model. Moisture was found to negatively impact the MR as long as the deformation was mostly resilient with a negligible amount of accumulated PD. Analysis of the influence of moisture on the parameters k1 and k2 of the k-θ model showed that k1 decreases with increased moisture and k2 is relatively insensitive to moisture. Based on these observations, a simple model was developed for the impact of moisture on MR. The performance of this model was comparable to an existing moisture dependent MR model. In contrast, it was further observed that at the later stages of the RLT tests, after a relatively large number of load applications, the MR increased with increased moisture up to the optimum moisture content. This occurred when the RD was accompanied by a significant amount of PD. Further investigation suggested that moisture aided the post-compaction (PC) and possible particle rearrangement that resulted in the increased PD and increased MR. In this case k1 decreased, whereas k2 increased, with increased moisture. The existing MR-moisture model did not work for this behaviour. This suggests that the effect of PC on MRshould be considered in modelling. However, although not explored in this study, it may be possible to simulate this effect of increase in MR with increased moisture due to PC using the proposed model if k2 is expressed as a function of moisture. The PD characteristics of UGMs were investigated based on the multistage (MS) RLT test. In contrast with the single stage (SS) RLT test, the MS RLT test accounts for the effect of stress history and enables a comprehensive study of the material behaviour under cyclic stresses of various magnitudes. Since the existing PD models cannot be directly applied for the MS loading procedure, a general formulation based on the time hardening concept was derived that can be used to extend the models for the MS loading conditions. Based on this formulation, some of the current models were calibrated and their performance in predicting the PD behaviour in MS RLT tests was compared. The investigation regarding the impact of moisture on PD showed that moisture significantly increases the accumulation of PD. Generally, materials with finer grading showed more sensitivity to moisture with regards to both PD and RD. To characterize the impact of moisture, moisture sensitivity of different grain size distributions and the impact of the degree of compaction on PD with reduced effort, a simple model was proposed. Unlike some of the well-performing existing models, this model can be calibrated using a single MS RLT test without requiring any separate static failure triaxial tests. This model was validated using the MS RLT test data with satisfactory results. The sensitivity of the parameters of this model was studied with respect to moisture content, degree of compaction and grain size distribution. Some reasonable trends for the sensitivity of the parameters to these influential factors were obtained, which suggests that these may be further developed to incorporate into the model.

QC 20150325

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Koff, Andrew (Andrew Steven). "Tip clearance effects on multistage axial compressor performance and flow structure for small core application." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/108933.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2017.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 241-245).
This thesis describes the effect of increasing multistage axial compressor rotor blade tip clearance on embedded stage performance and flow structure for clearance-to-span ratios ranging from 1.4% to 5.6% using steady and unsteady three-dimensional viscous flow multistage computations. Embedded stage efficiency displays decreased sensitivity as rotor tip clearance increases with two flow regimes. For clearance-to-span ratios less than 3.6%, a nearly linear decrease in stage efficiency of 1.6 points per 1% increase in clearance-to-span is identified, in agreement with published literature. For clearance-to-span ratios greater than 3.6%, the computed stage efficiency decreases at a rate of 0.5 points per 1% increase in clearance-to-span. A parameter is developed that correlates with rotor tip section loss generation over a range of rotor tip clearance-to-span ratios and flow coefficients. The blade row relative streamwise tip section blockage increases in both rotor and stator passages and follows trends in rotor and stator tip section loss generation with rotor tip clearance. The tip section velocity deficit into the stator increases with tip clearance resulting in stator suction side corner flow separation, creating a challenge to design a high efficiency stage with larger tip clearance.
by Andrew Koff.
S.M.
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Hamouche, Walid. "Contrôle de forme de coques multistables : modélisation, optimisation et mise en œuvre." Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066541/document.

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Ces travaux de thèse sont basés principalement sur le phénomène de multistabilité des structures minces de type plaques et coques ainsi que quelques applications associées. Les travaux sont divisés en deux parties. La première partie a pour objet l’étude théorique, numérique et expérimentale de la multistabilité des coques minces orthotropes peu profondes à courbures uniformes. On montre notamment qu’une telle coque, lorsqu’elle est soumise à la combinaison d’une courbure initiale et d’une précontrainte suffisamment élevées, possède jusqu’à trois configurations stables vis-à-vis des propriétés matériaux. Dans un premier temps, nous proposons des critères de conception et fabrication de coques multistables allant jusqu’à la tristabilité, validés numériquement et expérimentalement. Ensuite, nous appliquons ces critères à la conception et à la fabrication de coques multistables cylindriques dont la différence de niveau énergétique entre les deux états stables est minime. Sur ce support, la deuxième partie est consacrée à des applications exploitant la bistabilité des coques cylindriques minces à faible différence énergétique. Nous effectuons tout d’abord une application au contrôle de forme via l’utilisation de matériaux actifs que l’on attache à la structure. Cela comprend une première phase théorique de conception de la structure et de la loi d’actionnement, et une seconde phase de mise en œuvre expérimentale. Ensuite, nous étudions théoriquement et expérimentalement les propriétés de dynamique non-linéaire de ce type de coques dans le but de mettre en évidence les modes d’oscillations intrinsèques à une source d’excitation externe. Enfin, nous proposons une application à la récupération d’énergie vibratoire non-linéaire de coques multistables cylindriques métalliques par voie piézoélectrique
This work is essentially based on the phenomenon of multistability of thin structures as plates and shells and some associated applications. The work is divided in two parts. The first part aims to study theoretically, numerically and experimentally the multistability of thin orthotropic shallow shells with uniform curvature. We show notably that such a shell, when submitted to the combination of initial curvature and pre-stresses sufficiently high, possesses up to three stable states towards the choice of the material. First, we propose criteria to design and manufacture multistable shells up to tristability ; this work is validated by finit element simulations and experiments. After, we apply those criteria to the design and manufacture ofcylindrical multistable shells for which the energetic gap between stable states is minimal. The second part is dedicated to direct applications of bistability of thin cylindrical bistable shells with low energetic gap. We first propose an application on shape control via the use of active materials which we bond on the structure. This includes a first phase of theoretical design of both the structure and the actuation law, and a second phase of experimental demonstration. After, we study both theoretically and experimentally the non-linear dynamic properties of such structures with the aim to highlight the different modes of oscillations intrinsic to an external excitation source. Finally, we propose an application to non-linear broadband energy harvesting from vibrations based on multistable piezoelectric excited shells
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Books on the topic "Multistable structures"

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Prado, Raquel. Multistate models for mental fatigue. Edited by Anthony O'Hagan and Mike West. Oxford University Press, 2018. http://dx.doi.org/10.1093/oxfordhb/9780198703174.013.29.

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This article discusses the use of structured, multivariate Bayesian dynamic models in the analysis of experimental data involving large-scale electroencephalography (EEG) signals or time series generated on individuals subject to tasks inducing mental fatigue. It first provides an overview of the goals and challenges in the analysis of brain signals, using the EEG case as example, before describing the development and application of novel time-varying autoregressive and regime switching models, which incorporate relevant prior information via structured priors and fitted using novel, customized Bayesian computational methods. In the experiment, a subject was asked to perform simple arithmetic operations for a period of three hours. Prior to the experiment, the subject was confirmed to be alert. After the experiment ended, the subject was fatigued. The study demonstrates that Bayesian analysis is useful for real time detection of cognitive fatigue.
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Denison, Craig. Teaching and Conducting Diverse Populations. Edited by Frank Abrahams and Paul D. Head. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780199373369.013.23.

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This chapter examines how social delineations of boys’ singing inform the boychoir conductor’s choices for vocal technique, programming, and rehearsal procedure. The introduction identifies structural elements that delineate a boychoir from other types of choirs, especially in the United States, with its traditions of multistage maturity level singers across different vocal registers. Once established, the chapter examines signature programming, rehearsal, and performance norms, with attention to the intersection of traditional and contemporary practices. Following a consideration of the boychoir community and its relationship to the community-at-large, the chapter closes with the concluding assertion of a boychoir pedagogy that synergizes the handling of different levels of boychoir development (especially voice changes) and adult and boy meanings of boys’ singing.
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Book chapters on the topic "Multistable structures"

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Norman, A. D., M. R. Golabchi, K. A. Seffen, and Simon D. Guest. "Multistable Textured Shell Structures." In Advances in Science and Technology, 168–73. Stafa: Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/3-908158-11-7.168.

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Böhm, Valter, Susanne Sumi, Tobias Kaufhold, and Klaus Zimmermann. "Compliant Multistable Tensegrity Structures with Simple Topologies." In New Trends in Mechanism and Machine Science, 153–61. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-44156-6_16.

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Böhm, V., P. Schorr, T. Feldmeier, J. H. Chavez-Vega, S. Henning, K. Zimmermann, and L. Zentner. "An Approach to Robotic End Effectors Based on Multistable Tensegrity Structures." In New Trends in Mechanism and Machine Science, 470–78. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-55061-5_53.

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Sumi, S., V. Böhm, F. Schale, and K. Zimmermann. "Compliant Gripper Based on a Multistable Tensegrity Structure." In New Trends in Mechanism and Machine Science, 143–51. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-44156-6_15.

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Natvig, B. "Recent Developments in Multistate Reliability Theory." In Probabilistic Methods in the Mechanics of Solids and Structures, 385–93. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-82419-7_36.

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Schorr, P., V. Böhm, G. Stépán, L. Zentner, and K. Zimmermann. "Multi-Mode Motion System Based on a Multistable Tensegrity Structure." In Advances in Mechanism and Machine Science, 3007–16. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-20131-9_296.

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Cappelle, Bart. "On the Notion State in Multistate Structure Function Theory." In International Series in Intelligent Technologies, 201–21. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-2357-4_8.

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Awai, Ikuo. "Design of Multistage Combline Band-Pass Filters in Layered Structures." In Novel Technologies for Microwave and Millimeter — Wave Applications, 83–100. Boston, MA: Springer US, 2004. http://dx.doi.org/10.1007/978-1-4757-4156-8_4.

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Schorr, Philipp, Valter Böhm, Lena Zentner, and Klaus Zimmermann. "Design of a Vibration Driven Motion System Based on a Multistable Tensegrity Structure." In Informatics in Control, Automation and Robotics, 302–17. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-31993-9_14.

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Koszalka, Leszek, Dominik Lisowski, and Iwona Pozniak-Koszalka. "Comparison of Allocation Algorithms for Mesh Structured Networks with Using Multistage Simulation." In Computational Science and Its Applications - ICCSA 2006, 58–67. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11751649_7.

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Conference papers on the topic "Multistable structures"

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Norman, Alex, Simon Guest, and Keith Seffen. "Novel Multistable Corrugated Structures." In 48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2007. http://dx.doi.org/10.2514/6.2007-2228.

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Cui, Yuefeng, and Matthew J. Santer. "Adaptive Multistable Flexible Composite Surfaces." In Spacecraft Structures Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2014. http://dx.doi.org/10.2514/6.2014-0671.

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Kollata, Eashwer, Carey King, and Matthew Campbell. "Design Synthesis of Multistable Compliant Structures." In 10th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2004. http://dx.doi.org/10.2514/6.2004-4415.

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Schultz, Marc. "Investigation of Self-Resetting Active Multistable Laminates." In 46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2005. http://dx.doi.org/10.2514/6.2005-1958.

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Tuz, Vladimir R., and Sergey L. Prosvimin. "Multistable response of trapping light nonlinear structures." In 2011 IEEE 11th International Conference on Laser and Fiber-Optical Networks Modeling (LFNM). IEEE, 2011. http://dx.doi.org/10.1109/lfnm.2011.6144978.

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Goodpaster, Benjamin A., and Ryan L. Harne. "Correlating Dynamic Bifurcations With Impedance Measures for Multistable Structures." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71397.

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Slender, lightweight structures are demanded to meet efficiency targets or to enhance vehicle system performance characteristics. Yet, when subjected to static stress for load-bearing purposes, the flexible structural members may buckle. Furthermore, additional dynamic excitations may activate adverse snap-through responses in such post-buckled components, which accelerates fatigue and failure. The severe nonlinearity associated with these phenomena challenges traditional forms of analysis and necessitates studious experimental methods for conclusive system characterization and model validation. This research builds upon state-of-the-art analytical and experimental strategies to examine the complex forced, dynamic behaviors of built-up structures that contain one or more post-buckled members. An analytical modeling and solution formulation is reviewed that is uniquely amenable to the study of multistable structures and permits experimentally-observable measures of impedance to be identified. Through theoretical and experimental studies, the efficacy of the impedance measures is evaluated towards their usefulness in identifying the onset of dynamic bifurcations in the multistable structural dynamics. For moderate amplitudes of input energy, the analysis is found to provide qualitatively accurate prediction of the drive point impedance changes observed prior to dynamic bifurcations from low to high amplitude of displacement.
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Kidambi, Narayanan, and K. W. Wang. "On the Deployment of Multistable Kresling Origami-Inspired Structures." In ASME 2019 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/detc2019-97427.

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Abstract Origami designs have attracted significant attention from researchers seeking to develop new types of deployable structures due to their ability to undergo large and complex yet predictable shape changes. The Kresling pattern, which is based on a natural accumulation of folds and creases during the twist-buckling of a thin-walled cylinder, offers a great example for the design of deployable systems that expand uniaxially into tubes or booms. However, much remains to be understood regarding the characteristics of Kresling-based deployable systems, and their dynamics during the deployment process remain largely unexplored. Hence this research investigates the deployment of Kresling origami-inspired structures, employing a full six-degree-of-freedom truss-based model to study their dynamics under different conditions. Results show that tuning the initial rotation angle of a structure gives rise to several qualitatively distinct mechanical properties and stability characteristics, each of which has different implications for the design of the deployable systems. Dynamic analyses reveal the robustness of Kresling structures to out-of-axis perturbations while remaining compliant in the axial direction. These findings suggest that Kresling-based designs can form the basis for the development of new types of deployable structures and systems with tunable performance.
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Harne, R. L., M. E. Schoemaker, and K. W. Wang. "Multistable chain for ocean wave vibration energy harvesting." In SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, edited by Wei-Hsin Liao. SPIE, 2014. http://dx.doi.org/10.1117/12.2044267.

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Liu, Zuolin, Hongbin Fang, Jian Xu, and K. W. Wang. "Triple-Cell Origami Structure for Multistable Transition Sequences." In ASME 2020 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/detc2020-22354.

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Abstract With the infinite design space and the excellent folding-induced deformability, origami has been recognized as an effective tool for developing reconfigurable structures. Particularly, the multistable origami structure, which possesses more than one stable configuration that is distinct in shape and mechanical properties, has received wide research attention. Generally, the origami structure reaches a kinematic singularity point when switching among different stable configurations. At this critical state, multiple switching sequences are possible, and the actual transition is generally hard to predict. In this paper, evolving from the conventional bistable Miura-ori unit, a triple-cell origami structure with eight potential stable configurations is proposed, which serves as a platform for investigating the transition sequences among different stable configurations. To quantify the overall elastic potential of the structure, besides the conventional elastic energy originating from the rigid folding creases, extra elastic potential induced by the mismatch among the cells are introduced, so that folding of the triple-cell structure is no longer a strict single degree-of-freedom mechanism. Instead, the three cells can deform asynchronously to avoid reaching the kinematic singularity point. Hence, under displacement loading, the transition sequence of the multistable structure is predicted by performing optimization on the elastic potential energy. It shows that sequences with multifarious characteristics are possible, including reversible and irreversible transitions, and transitions with symmetric and asymmetric energy barriers. Considering that the fundamental transition mechanisms are of great significance in understanding the quasi-static and dynamic behaviors of multistable structures, the results could be potentially employed for developing morphing structures, adaptive metamaterials, and mechanical logic gates.
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Anilkumar, P. M., B. N. Rao, S. Scheffler, R. Rolfes, A. Haldar, and E. L. Jansen. "Numerical Studies on the Dynamic Characteristics of Series-Connected Multistable Laminates." In ASME 2021 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/smasis2021-68073.

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Abstract Multistable morphing structures have gained considerable attention over the past three decades due to their ability to efficiently work in various operating conditions. Unsymmetrical laminates, which yields two stable equilibrium shapes due to the residual thermal stresses, are widely investigated to produce multistable structures. Even though cured shapes of unsymmetrical laminates are promising candidates for the design of morphing structural components, they may not fulfil all the requirements of a continuous morphing structure requiring more than two stable states during the morphing action. As a solution to achieve more than two stable configurations, series-connected unsymmetrical laminates are proposed in the present analysis. Connecting different bistable laminates results in multiple stable configurations at the end of the curing process, which is often desired in continuous shape-changing applications. The snap-through process involving shape transition between the generated stable shapes is highly nonlinear in nature. Since morphing aerospace structures are often subjected to severe dynamic excitation, large-amplitude nonlinear vibrations are inevitable during the snap-through transition. This work aims to explore the dynamic characteristic of multistable continuous composite plates generated by connecting bistable laminates without any external fixing aids. The proposed numerical analysis is carried out within a commercially available finite element package, ABAQUS. The effect of aspect ratios, laminate layups and actuation loads on the dynamic characteristic (natural frequencies and mode shapes) are reported from systematic parametric studies. The proposed model is further extended to predict the nonlinear characteristics of single well vibration and cross well vibration.
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