Bibliografie tematiche / Flexible structure

Letteratura scientifica selezionata sul tema "Flexible structure"

Autore: Grafiati
Pubblicato: 4 giugno 2021
Ultima modifica: 29 gennaio 2023

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Articoli di riviste sul tema "Flexible structure"

1

TAKAYAMA, Mineo. "Flexible Structure vs. Rigid Structure". Journal of the Society of Mechanical Engineers 113, n. 1097 (2010): 253–56. http://dx.doi.org/10.1299/jsmemag.113.1097_253.

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2

Torgersrud, Morten. "A Neutral, Flexible Structure". Philosophy of Photography 3, n. 1 (8 dicembre 2012): 185–93. http://dx.doi.org/10.1386/pop.3.1.185_7.

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3

Rogachko, S. I., e О. О. Pliasunova. "FLOATING FLEXIBLE PROTECTIVE STRUCTURE". Bulletin of Odessa State Academy of Civil Engineering and Architecture, n. 78 (10 marzo 2020): 126–34. http://dx.doi.org/10.31650/2415-377x-2020-78-126-134.

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4

Han, Jae, Kwi-Il Park e Chang Jeong. "Dual-Structured Flexible Piezoelectric Film Energy Harvesters for Effectively Integrated Performance". Sensors 19, n. 6 (24 marzo 2019): 1444. http://dx.doi.org/10.3390/s19061444.

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Abstract (sommario):
Improvement of energy harvesting performance from flexible thin film-based energy harvesters is essential to accomplish future self-powered electronics and sensor systems. In particular, the integration of harvesting signals should be established as a single device configuration without complicated device connections or expensive methodologies. In this research, we study the dual-film structures of the flexible PZT film energy harvester experimentally and theoretically to propose an effective principle for integrating energy harvesting signals. Laser lift-off (LLO) processes are used for fabrication because this is known as the most efficient technology for flexible high-performance energy harvesters. We develop two different device structures using the multistep LLO: a stacked structure and a double-faced (bimorph) structure. Although both structures are well demonstrated without serious material degradation, the stacked structure is not efficient for energy harvesting due to the ineffectively applied strain to the piezoelectric film in bending. This phenomenon stems from differences in position of mechanical neutral planes, which is investigated by finite element analysis and calculation. Finally, effectively integrated performance is achieved by a bimorph dual-film-structured flexible energy harvester. Our study will foster the development of various structures in flexible energy harvesters towards self-powered sensor applications with high efficiency.
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Rodríguez-Castro, Ramón, Alejandro Alcaraz-Caracheo e Álvaro Sánchez-Rodríguez. "Numerical modal control of a flexible beam structure". Ingeniería, investigación y tecnología 19, n. 2 (1 aprile 2018): 125–34. http://dx.doi.org/10.22201/fi.25940732e.2018.19n2.011.

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6

Holland, Pat. "Flexible Endoscopes: Structure and Function". Gastroenterology Nursing 24, n. 3 (maggio 2001): 116–19. http://dx.doi.org/10.1097/00001610-200105000-00003.

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Shoop, Nancy M. "Flexible Endoscopes: Structure and Function". Gastroenterology Nursing 24, n. 6 (novembre 2001): 294–97. http://dx.doi.org/10.1097/00001610-200111000-00007.

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Holland, Pat, e Nancy M. Shoop. "Flexible Endoscopes: Structure and Function". Gastroenterology Nursing 25, n. 4 (luglio 2002): 142–45. http://dx.doi.org/10.1097/00001610-200207000-00003.

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9

Aranda-Espinoza, H., e D. Lavallee. "Structure factor of flexible membranes". Europhysics Letters (EPL) 43, n. 3 (1 agosto 1998): 355–59. http://dx.doi.org/10.1209/epl/i1998-00365-x.

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10

Angelov, Plamen P., e Dimitar P. Filev. "Flexible models with evolving structure". International Journal of Intelligent Systems 19, n. 4 (2004): 327–40. http://dx.doi.org/10.1002/int.10166.

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Tesi sul tema "Flexible structure"

1

Guy, Nicolas. "Modèle et commande structurés : application aux grandes structures spatiales flexibles". Thesis, Toulouse, ISAE, 2013. http://www.theses.fr/2013ESAE0036/document.

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Dans cette thèse, les problématiques de la modélisation et du contrôle robuste de l’attitude des grandes structures spatiales flexibles sont considérées. Afin de satisfaire les performances de pointage requises dans les scénarios des futures missions spatiales, nous proposons d’optimiser directement une loi de commande d’ordre réduit sur un modèle de validation d’ordre élevé et des critères qui exploitent directement la structure du modèle. Ainsi, les travaux de cette thèse sont naturellement divisés en deux parties : une partie relative à l’obtention d’un modèle dynamique judicieusement structuré du véhicule spatial qui servira à l’étape de synthèse ; une seconde partie concernant l’obtention de la loi de commande.Ces travaux sont illustrés sur l’exemple académique du système masses-ressort, qui est la représentation la plus simple d’un système flexible à un degré de liberté. En complément, un cas d’étude sur un satellite géostationnaire est traité pour valider les approches sur un exemple plus réaliste d’une problématique industrielle
In this thesis, modeling and robust attitude control problems of large flexible space structures are considered. To meet the required pointing performance of future space missions scenarios, we propose to directly optimize a reduced order control law on high order model validation and criteria that directly exploit the model structure. Thus, the work of this thesis is naturally divided into two parts : one part on obtaining a wisely structured dynamic model of the spacecraft to be used in the synthesis step, a second part about getting the law control. This work is illustrated on the example of the academic spring-masses system, which is the simplest representation of a one degree of freedom flexible system. In addition, a geostationary satellite study case is processed to validate developed approaches on a more realistic example of an industrial problem
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O'Connor, Joseph. "Fluid-structure interactions of wall-mounted flexible slender structures". Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/fluidstructure-interactions-of-wallmounted-flexible-slender-structures(1dab2986-b78f-4ff9-9b2e-5d2181cfa009).html.

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The fluid-structure interactions of wall-mounted slender structures, such as cilia, filaments, flaps, and flags, play an important role in a broad range of physical processes: from the coherent waving motion of vegetation, to the passive flow control capability of hair-like surface coatings. While these systems are ubiquitous, their coupled nonlinear response exhibits a wide variety of behaviours that is yet to be fully understood, especially when multiple structures are considered. The purpose of this work is to investigate, via numerical simulation, the fluid-structure interactions of arrays of slender structures over a range of input conditions. A direct modelling approach, whereby the individual structures and their dynamics are fully resolved, is realised via a lattice Boltzmann-immersed boundary model, which is coupled to two different structural solvers: an Euler-Bernoulli beam model, and a finite element model. Results are presented for three selected test cases - which build in scale from a single flap in a periodic array, to a small finite array of flaps, and finally to a large finite array - and the key behaviour modes are characterised and quantified. Results show a broad range of behaviours, which depend on the flow conditions and structural properties. In particular, the emergence of coherent waving motions are shown to be closely related to the natural frequency of the array. Furthermore, this behaviour is associated with a lock-in between the natural frequency of the array and the predicted frequency of the fluid instabilities. The original contributions of this work are: the development and application of a numerical tool for direct modelling of large arrays of slender structures; the characterisation of the behaviour of slender structures over a range of input conditions; and the exposition of key behaviour modes of slender structures and their relation to input conditions.
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Yu, Jianbin. "Flexible reinforced pavement structure-sensitivity analysis". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0015/MQ52682.pdf.

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Giannopapa, Christina-Grigoria. "Fluid structure interaction in flexible vessels". Thesis, King's College London (University of London), 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.413425.

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Blinn, Bart A. "Flexlab a flexible structure controls test platform". Ohio : Ohio University, 1997. http://www.ohiolink.edu/etd/view.cgi?ohiou1177609627.

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Aneja, Ashish. "Structure-Property Relationships of Flexible Polyurethane Foams". Diss., Virginia Tech, 2002. http://hdl.handle.net/10919/29887.

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This study examined several features of flexible polyurethane foams from a structure-property perspective. A major part of this dissertation addresses the issue of connectivity of the urea phase and its influence on mechanical and viscoelastic properties of flexible polyurethane foams and their plaque counterparts. Lithium salts (LiCl and LiBr) were used as additives to systematically alter the phase separation behavior, and hence the connectivity of the urea phase at different scale lengths. Macro connectivity, or the association of the large scale urea rich aggregates typically observed in flexible polyurethane foams was assessed using SAXS, TEM, and AFM. These techniques showed that including a lithium salt in the foam formulation suppressed the formation of the urea aggregates and thus led to a loss in the macro level connectivity of the urea phase. WAXS and FTIR were used to demonstrate that addition of LiCl or LiBr systematically disrupted the local ordering of the hard segments within the microdomains, i.e., it led to a reduction of micro level connectivity or the regularity in segmental packing of the urea phase. Based on these observations, the interaction of the lithium salt was thought to predominantly occur with the urea hard segments, and this hypothesis was confirmed using quantum mechanical calculations. Another feature of this research investigated model trisegmented polyurethanes based on monofunctional polyols, or "monols", with water-extended toluene diisocyanate (TDI) based hard segments. The formulations of the monol materials were maintained similar to those of flexible polyurethane foams with the exceptions that the conventional polyol was substituted by an oligomeric monofunctional polyether of ca. 1000 g/mol molecular weight. Plaques formed from these model systems were shown to be solid materials even at their relatively low molecular weights of 3000 g/mol and less. AFM phase images, for the first time, revealed the ability of the hard segments to self-assemble and form lath-like percolated structures, resulting in solid plaques, even though the overall volume of the system was known to be dominated by the two terminal liquid-like polyether segments. In another aspect of this research, foams were investigated in which the ratios of the 2,4 and 2,6 TDI isomers were varied. The three commercially available TDI mixtures, i.e., 65:35 2,4/2,6 TDI, 80:20 2,4/2,6 TDI, and 100:0 2,4/2,6 TDI were used. These foams were shown to display marked differences in their cellular structure (SEM), urea aggregation behavior (TEM), and in the hydrogen bonding characteristics of the hard segments (FTIR). Finally, the nanoscale morphology of a series of 'model' segmented polyurethane elastomers, based on 1,4-butanediol extended piperazine based hard segments and poly(tetramethylene oxide) soft segments, was also investigated using AFM. The monodisperse hard segments of these 'model' polyurethanes contained precisely either one, two, three, or four repeating units. Not only did AFM image the microphase separated morphology of these polyurethanes, but it also revealed that the hard domains preferentially oriented with their long axis along the radial direction of the spherulites which they formed.
Ph. D.
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Kaushiva, Bryan D. "Structure-Property Relationships of Flexible Polyurethane Foams". Diss., Virginia Tech, 1999. http://hdl.handle.net/10919/28843.

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This study examined several structure-property features of flexible polyurethane foams that are important aspects of foam production. AFM and WAXS were used to demonstrate the existence, for the first time in typical polyurethane foam systems, of lamellae-like polyurea structures ca. 0.2 mm long and ca 5-10 nm across. Aggregations of these lamellae-like hard domains may be the polyurea balls typically observed via TEM. Diethanolamine, a widely used cross-linking agent in molded foams, was shown to disrupt ordering in the polyurea hard domains and alter the interconnectivity of hard domains by preventing the formation of lamellae-like structures. These changes were shown to lead to softening of the foam. Copolymer polyol is frequently applied as reinforcing filler in foams. It was found that a common method of adding this component alters the hard segment/soft segment (HS/SS) ratio, thus increasing the load bearing capacity of the foam. It was observed in this report that at constant HS/SS ratio, the copolymer polyol only increased load bearing under humid conditions. It was also shown that the collapse of the cellular structure of a foam prior to the point of urea precipitation alters the aggregation behavior of the hard domains and alters solid-state properties. Surfactant is thus suggested to play a secondary role in the development of the hard domains by maintaining the cellular structure in the foam as the phase separation occurs and at least until the polyurethane foam has more fully organized hard segment domains. It was found that cure temperature could be manipulated to predictably change interdomain spacings and hydrogen bond development in the polymer. Curing above 100°C was found to lower hard segment content for plaques of the same formulation possibly as a result of water and isocyanate vaporization. Apart from polyurethane materials, structure-property relationships were examined in cast blends based on poly(tetrafluoroethylene) (PTFE) and the terpolymer poly(tetrafluoroethylene-co-vinylidene fluoride-co-hexafluoropropylene) (FKM). This revealed that tensile and dynamic moduli could be predictably altered by controlling the degree of FKM cross-linking or by varying PTFE content in the film. Inducing PTFE fibrillation was found to yield higher modulus films without increasing PTFE content.
Ph. D.
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8

Aditya, Riza. "Secure electronic voting with flexible ballot structure". Thesis, Queensland University of Technology, 2005. https://eprints.qut.edu.au/16156/1/Riza_Aditya_Thesis.pdf.

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Voting is a fundamental decision making instrument in any consensus-based society. It is employed in various applications from student body elections, reality television shows, shareholder meetings, to national elections. With the motivation of better eciency, scalability, speed, and lower cost, voting is currently shifting from paper-based to the use of electronic medium. This is while aiming to achieve better security, such that voting result reflects true opinions of the voters. Our research focuses on the study of cryptographic voting protocols accommodating a flexible ballot structure as a foundation for building a secure electronic voting system with acceptable voting results. In particular, we search for a solution suitable for the preferential voting system employed in the Australian Federal Election. The outcomes of the research include: improvements and applications of batch proof and verication theorems and techniques, a proposed alternative homomorphic encryption based voting scheme, a proposed Extended Binary Mixing Gate (EBMG) mix-network scheme, a new threshold randomisation technique to achieve receipt-freeness property in voting, and the application of cryptographic voting protocol for preferential voting. The threats and corresponding requirements for a secure secret-ballot voting scheme are rst discussed. There are significant security concerns about the conduct of electronic voting, and it is essential that the voting results re ect the true opinions of the voters - especially in political elections. We examine and extend batch processing proofs and verifications theorems and proposed applications of the theorems useful for voting. Many instances of similar operations can be processed in a single instance using a batch technique based on one of the batch theorems. As the proofs and verications provide formal assurances that the voting process is secure, batch processing offers great efficiency improvements while retaining the security required in a real-world implementation of the protocol. The two main approaches in cryptographic voting protocols, homomorphic encryption based voting and mix-network based voting, are both studied in this research. An alternative homomorphic voting scheme using multiplicative homomorphism property, and a number of novel mix-network schemes are proposed. It is shown that compared to the mix-network approach, homomorphic encryption schemes are not scalable for straight-forward adaptation of preferential systems. One important requirement of secret-ballot voting is receipt-freeness. A randomisation technique to achieve receipt-freeness in voting is examined and applied in an ecient and practical voting scheme employing an optimistic mix-network. A more general technique using threshold randomisation is also proposed. Combination of the primitives, both the homomorphic encryption and mixnetwork approach, yields a hybrid approach producing a secure and ecient secret-ballot voting scheme accommodating a exible ballot structure. The resulting solution oers a promising foundation for secure and practical secret-ballot electronic voting accommodating any type of counting system.
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9

Aditya, Riza. "Secure Electronic Voting with Flexible Ballot Structure". Queensland University of Technology, 2005. http://eprints.qut.edu.au/16156/.

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Abstract (sommario):
Voting is a fundamental decision making instrument in any consensus-based society. It is employed in various applications from student body elections, reality television shows, shareholder meetings, to national elections. With the motivation of better eciency, scalability, speed, and lower cost, voting is currently shifting from paper-based to the use of electronic medium. This is while aiming to achieve better security, such that voting result reflects true opinions of the voters. Our research focuses on the study of cryptographic voting protocols accommodating a flexible ballot structure as a foundation for building a secure electronic voting system with acceptable voting results. In particular, we search for a solution suitable for the preferential voting system employed in the Australian Federal Election. The outcomes of the research include: improvements and applications of batch proof and verication theorems and techniques, a proposed alternative homomorphic encryption based voting scheme, a proposed Extended Binary Mixing Gate (EBMG) mix-network scheme, a new threshold randomisation technique to achieve receipt-freeness property in voting, and the application of cryptographic voting protocol for preferential voting. The threats and corresponding requirements for a secure secret-ballot voting scheme are rst discussed. There are significant security concerns about the conduct of electronic voting, and it is essential that the voting results re ect the true opinions of the voters - especially in political elections. We examine and extend batch processing proofs and verifications theorems and proposed applications of the theorems useful for voting. Many instances of similar operations can be processed in a single instance using a batch technique based on one of the batch theorems. As the proofs and verications provide formal assurances that the voting process is secure, batch processing offers great efficiency improvements while retaining the security required in a real-world implementation of the protocol. The two main approaches in cryptographic voting protocols, homomorphic encryption based voting and mix-network based voting, are both studied in this research. An alternative homomorphic voting scheme using multiplicative homomorphism property, and a number of novel mix-network schemes are proposed. It is shown that compared to the mix-network approach, homomorphic encryption schemes are not scalable for straight-forward adaptation of preferential systems. One important requirement of secret-ballot voting is receipt-freeness. A randomisation technique to achieve receipt-freeness in voting is examined and applied in an ecient and practical voting scheme employing an optimistic mix-network. A more general technique using threshold randomisation is also proposed. Combination of the primitives, both the homomorphic encryption and mixnetwork approach, yields a hybrid approach producing a secure and ecient secret-ballot voting scheme accommodating a exible ballot structure. The resulting solution oers a promising foundation for secure and practical secret-ballot electronic voting accommodating any type of counting system.
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Thompson, Hugh Patrick George. "Extending crystal structure prediction methods towards flexible molecules". Thesis, University of Cambridge, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708949.

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Libri sul tema "Flexible structure"

1

Duquesne, Sophie, Carole Magniez e Giovanni Camino, a cura di. Multifunctional Barriers for Flexible Structure. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71920-5.

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Balić, Jože. Flexible manufacturing systems: Development, structure, operation, handling, tooling. Vienna: Danube Adria Association for Automation & Manufacturing, DAAAM International Vienna, 2001.

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3

Onoda, Junjiro. Simultaneous structure/control optimization of large flexible spacecraft. [Washington, D. C.]: American Institute of Aeronautics and Astronautics, 1987.

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4

Ih, Che-Hang Charles. Adaptive control experiment with a large flexible structure. [New York]: American Institute of Aeronautics and Astronautics, 1988.

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5

Betsch, Peter, a cura di. Structure-preserving Integrators in Nonlinear Structural Dynamics and Flexible Multibody Dynamics. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-31879-0.

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Ih, Che-Hang Charles. Experiments in multivariable adaptive control of a large flexible structure. [Washington, D. C.]: American Institute of Aeronautics and Astronautics, 1989.

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7

Guccione, Robert. System identification of the Daisy large space structure emulator. [Downsview, Ont.]: Institute for Aerospace Studies, University of Toronto, 1992.

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8

Collins, Emmanuel G. Design and implementation of robust decentralized control laws for the ACES structure at Marshall Space Flight Center. Hampton, Va: Langley Research Center, 1990.

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Collins, Emmanuel G. High performance, accelerometer-based control of the Mini-MAST structure at Langley Research Center. Hampton, Va: Langley Research Center, 1991.

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National Bureau of Standards. Flexible disk cartridge labelling and file structure for information interchange. Gaithersburg, MD: U.S. Dept. of Commerce/National Bureau of Standards, 1986.

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Capitoli di libri sul tema "Flexible structure"

1

Pronk, Arno. "Structure". In Flexible Forming for Fluid Architecture, 161–71. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71551-9_6.

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Huang, YongAn, YeWang Su e Shan Jiang. "Liquid Metal-Based Structure Design for Stretchable Electronics". In Flexible Electronics, 351–80. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-6623-1_13.

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Greenwood, Nigel R. "Project Structure and Management". In Implementing Flexible Manufacturing Systems, 55–80. London: Macmillan Education UK, 1988. http://dx.doi.org/10.1007/978-1-349-07959-9_3.

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Nikolov, Nikolai G. "Situations Endowed with Lattice Structure". In Flexible Query Answering Systems, 192–99. Heidelberg: Physica-Verlag HD, 2001. http://dx.doi.org/10.1007/978-3-7908-1834-5_18.

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Novák, Vilém, Martin Štěpnička e Jiří Kupka. "Linguistic Descriptions: Their Structure and Applications". In Flexible Query Answering Systems, 209–20. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-40769-7_19.

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Delis, Vasilis, e Dimitris Papadias. "Querying multimedia documents by spatiotemporal structure". In Flexible Query Answering Systems, 126–37. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/bfb0055996.

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Savnik, Iztok, e Zahir Tari. "Querying objects with complex static structure". In Flexible Query Answering Systems, 329–40. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/bfb0056014.

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Shojania, Shaheen, e Joe D. O'Neil. "Order from Disorder: Structure, Function, and Dynamics of the HIV-1 Transactivator of Transcription". In Flexible Viruses, 223–56. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118135570.ch9.

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Jaiman, Rajeev Kumar, e Vaibhav Joshi. "Flexible Multibody Fluid-Structure Interaction". In Computational Mechanics of Fluid-Structure Interaction, 237–83. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5355-1_9.

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Modarres-Sadeghi, Yahya. "A Flexible Pipe Conveying Fluid". In Introduction to Fluid-Structure Interactions, 147–87. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-85884-1_7.

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Atti di convegni sul tema "Flexible structure"

1

Stetner, Martin, Dimitri Mavris e Daniel Schrage. "A method for flexible design integration". In 37th Structure, Structural Dynamics and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1996. http://dx.doi.org/10.2514/6.1996-1540.

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Tao, Wenjin, e Ming C. Leu. "Design of lattice structure for additive manufacturing". In 2016 International Symposium on Flexible Automation (ISFA). IEEE, 2016. http://dx.doi.org/10.1109/isfa.2016.7790182.

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ONODA, JUNJIRO, e RAPHAEL HAFTKA. "Simultaneous structure/control optimization of large flexible spacecraft". In 28th Structures, Structural Dynamics and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1987. http://dx.doi.org/10.2514/6.1987-823.

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Babuska, Vit, e Roy Craig, Jr. "Substructure-based local output feedback control of flexible structures". In 37th Structure, Structural Dynamics and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1996. http://dx.doi.org/10.2514/6.1996-1487.

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Sawicki, J., e W. Gawronski. "Design of the balanced LQG controller for a flexible rotor". In 37th Structure, Structural Dynamics and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1996. http://dx.doi.org/10.2514/6.1996-1448.

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Joshi, Aravind K., e Yves Schabes. "Fixed and flexible phrase structure". In the workshop. Morristown, NJ, USA: Association for Computational Linguistics, 1991. http://dx.doi.org/10.3115/112405.112435.

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Balas, G. J. "A flexible structure control experiment". In Proceedings of 16th American CONTROL Conference. IEEE, 1997. http://dx.doi.org/10.1109/acc.1997.611948.

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OZ, H. "Variable Structure Control System (VSCS) maneuvering of flexible spacecraft". In 27th Structures, Structural Dynamics and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1986. http://dx.doi.org/10.2514/6.1986-840.

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9

Teich, M., e N. Gebbeken. "Aerodynamic damping and fluid-structure interaction of blast loaded flexible structures". In Fluid Structure Interaction 2011. Southampton, UK: WIT Press, 2011. http://dx.doi.org/10.2495/fsi110081.

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10

Khot, Narendra, Raymond Kolonay e Frank Eastep. "A method for enhancement of the rolling maneuver of a flexible wing". In 37th Structure, Structural Dynamics and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1996. http://dx.doi.org/10.2514/6.1996-1391.

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Rapporti di organizzazioni sul tema "Flexible structure"

1

Bell, Linda, e Richard Freeman. Does a Flexible Industry Wage Structure Increase Employment?: The U.S. Experience. Cambridge, MA: National Bureau of Economic Research, aprile 1985. http://dx.doi.org/10.3386/w1604.

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2

Ozcelik, Selahattin, e Michael Blackburn. Intelligent Control of a Highly Flexible Robotic Structure With Hundreds of Motor Elements. Fort Belvoir, VA: Defense Technical Information Center, gennaio 2005. http://dx.doi.org/10.21236/ada442046.

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3

Yu, Zhixiang, Lei Zhao, Chang Yang, Yaopeng Liu, Hu Xu, Shichun Zhao e Rui Bai. A BUFFER STRUCTURE COMPOSED OF FLEXIBLE NETS AND SPRING-RODS FOR ROCKFALL PROTECTION. The Hong Kong Institute of Steel Construction, dicembre 2018. http://dx.doi.org/10.18057/icass2018.p.169.

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4

Veley, Duane E., Narendra S. Khot, Jeffrey V. Zweber e Alicia R. Hartong. Optimum Design of a Flexible Wing Structure to Enhance Roll Maneuver in Supersonic Flow. Fort Belvoir, VA: Defense Technical Information Center, gennaio 2008. http://dx.doi.org/10.21236/ada478915.

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5

Main, G. A study of fluid-structure interaction on overlapping grids with a focus on flexible beams. Office of Scientific and Technical Information (OSTI), settembre 2013. http://dx.doi.org/10.2172/1097764.

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6

Junkins, John L. Optimization of Closed Loop Eigenvalues: Maneuvering, Vibration Control, and Structure/Control Design Iteration for Flexible Spacecraft. Fort Belvoir, VA: Defense Technical Information Center, maggio 1986. http://dx.doi.org/10.21236/ada172716.

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7

Heymsfield, Ernie, e Jeb Tingle. State of the practice in pavement structural design/analysis codes relevant to airfield pavement design. Engineer Research and Development Center (U.S.), maggio 2021. http://dx.doi.org/10.21079/11681/40542.

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Abstract (sommario):
An airfield pavement structure is designed to support aircraft live loads for a specified pavement design life. Computer codes are available to assist the engineer in designing an airfield pavement structure. Pavement structural design is generally a function of five criteria: the pavement structural configuration, materials, the applied loading, ambient conditions, and how pavement failure is defined. The two typical types of pavement structures, rigid and flexible, provide load support in fundamentally different ways and develop different stress distributions at the pavement – base interface. Airfield pavement structural design is unique due to the large concentrated dynamic loads that a pavement structure endures to support aircraft movements. Aircraft live loads that accompany aircraft movements are characterized in terms of the load magnitude, load area (tire-pavement contact surface), aircraft speed, movement frequency, landing gear configuration, and wheel coverage. The typical methods used for pavement structural design can be categorized into three approaches: empirical methods, analytical (closed-form) solutions, and numerical (finite element analysis) approaches. This article examines computational approaches used for airfield pavement structural design to summarize the state-of-the-practice and to identify opportunities for future advancements. United States and non-U.S. airfield pavement structural codes are reviewed in this article considering their computational methodology and intrinsic qualities.
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8

Jeffrey, Frank. Flexible Photovoltaics for Fabric Structures. Fort Belvoir, VA: Defense Technical Information Center, giugno 2001. http://dx.doi.org/10.21236/ada395283.

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9

Bennett, W. H., G. L. Blankenship e H. G. Kwatny. Modeling and Control of Flexible Structures. Fort Belvoir, VA: Defense Technical Information Center, dicembre 1986. http://dx.doi.org/10.21236/ada177106.

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10

Moon, Francis C., Peter Gergely, James S. Thorp e John F. Abel. Nonlinear Dynamics and Control of Flexible Structures. Fort Belvoir, VA: Defense Technical Information Center, marzo 1989. http://dx.doi.org/10.21236/ada208120.

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