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Journal articles on the topic 'Rigid structures'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

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1

Benveniste, E. Jerome, and David Fisher. "Noneistence of Invariant Rigid Structures and Invariant Almost Rigid Structures." Communications in Analysis and Geometry 13, no. 1 (2005): 89–112. http://dx.doi.org/10.4310/cag.2005.v13.n1.a2.

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2

Gurevich, Yuri, and Saharon Shelah. "On finite rigid structures." Journal of Symbolic Logic 61, no. 2 (June 1996): 549–62. http://dx.doi.org/10.2307/2275675.

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AbstractThe main result of this paper is a probabilistic construction of finite rigid structures. It yields a finitely axiomatizable class of finite rigid structures where no formula with counting quantifiers defines a linear order.

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3

Little, J. A., D. L. G. Hill, and D. J. Hawkes. "Deformations Incorporating Rigid Structures." Computer Vision and Image Understanding 66, no. 2 (May 1997): 223–32. http://dx.doi.org/10.1006/cviu.1997.0608.

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4

Karypidis, M. "Sewability interdependence on rigid structures." IOP Conference Series: Materials Science and Engineering 459 (December 7, 2018): 012048. http://dx.doi.org/10.1088/1757-899x/459/1/012048.

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5

Fokina, Ekaterina, Andrey Frolov, and Iskander Kalimullin. "Categoricity Spectra for Rigid Structures." Notre Dame Journal of Formal Logic 57, no. 1 (2016): 45–57. http://dx.doi.org/10.1215/00294527-3322017.

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6

Torroba, Tomás, and María García-Valverde. "Rigid Annulated Carbon–Sulfur Structures." Angewandte Chemie International Edition 45, no. 48 (December 11, 2006): 8092–96. http://dx.doi.org/10.1002/anie.200603461.

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7

Jirka, Ondrej, and Karel Mikes. "Semi-rigid joints of timber structures." Pollack Periodica 5, no. 2 (August 2010): 19–26. http://dx.doi.org/10.1556/pollack.5.2010.2.2.

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8

Quiroga-Barranco, R., and A. Candel. "Rigid and Finite Type Geometric Structures." Geometriae Dedicata 106, no. 1 (June 2004): 123–43. http://dx.doi.org/10.1023/b:geom.0000033855.45787.f7.

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9

Stavric, Milena, and Albert Wiltsche. "Quadrilateral Patterns for Rigid Folding Structures." International Journal of Architectural Computing 12, no. 1 (March 2014): 61–79. http://dx.doi.org/10.1260/1478-0771.12.1.61.

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10

Kulikov, Vik S., and V. M. Kharlamov. "On real structures on rigid surfaces." Izvestiya: Mathematics 66, no. 1 (February 28, 2002): 133–50. http://dx.doi.org/10.1070/im2002v066n01abeh000374.

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11

Tzavelis, C., and M. Shinozuka. "Seismic Reliability of Rigid Frame Structures." Journal of Engineering Mechanics 114, no. 11 (November 1988): 1953–72. http://dx.doi.org/10.1061/(asce)0733-9399(1988)114:11(1953).

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12

Angelillo, Maurizio, Antonio Fortunato, Antonio Gesualdo, Antonino Iannuzzo, and Giulio Zuccaro. "Rigid block models for masonry structures." International Journal of Masonry Research and Innovation 3, no. 4 (2018): 349. http://dx.doi.org/10.1504/ijmri.2018.095701.

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13

Zuccaro, Giulio, Maurizio Angelillo, Antonio Gesualdo, Antonino Iannuzzo, and Antonio Fortunato. "Rigid block models for masonry structures." International Journal of Masonry Research and Innovation 3, no. 4 (2018): 349. http://dx.doi.org/10.1504/ijmri.2018.10016294.

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14

Fomenko, Serafim A., Igor M. Garanzha, and Anton V. Tanasoglo. "Damper as a Rigid Insert for Rigid Bus Structures Oscillation Damping." Materials Science Forum 931 (September 2018): 14–18. http://dx.doi.org/10.4028/www.scientific.net/msf.931.14.

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One of the main problems in a design of rigid bus structures in open switchgears devices is a structural stabilization under the influence of various dynamic loads. The implementation of rigid bus structures with large spans of pipe-bus showed a real danger of the wind resonance for cylindrical pipe-bus structures (aeroelastic oscillations). This phenomenon is dangerous in that at low wind speeds there are intense pipe's oscillations in vertical plane, adding to the static loads an essential dynamic component. Its level is comparable with the loads from the weight of the structures and can, in combination with the rest loads, cause stresses close to the maximum admissible for the 1st group of limit states. The problem of reducing the level of structural oscillations in many cases is associated with the need to increase the rigidity and reduce the material consumption, but it's important to meet the technological requirements imposed by operating conditions and protect people from harmful vibration. In a paper are considering a new method for damping oscillations for rigid bus structures under the action of a wind vortex excitation – damper as a rigid insert. Is presented a mathematical model of the joint work of the rigid bus structure with the damper as the rigid insert. Have carried out analytical researches of the joint work of the rigid bus structure with the damper as the rigid insert.

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15

Nakamura, Tomoaki, Aya Yamashima, Norimi Mizutani, and Yonghwan Cho. "SIMULATION OF TSUNAMI FORCE IN THE PRESENCE OF BEACHSIDE STRUCTURES." Coastal Engineering Proceedings, no. 36 (December 30, 2018): 66. http://dx.doi.org/10.9753/icce.v36.structures.66.

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The 2011 Tohoku earthquake tsunami caused a catastrophic disaster along the northeast coast of the Honshu Island, Japan. To deal with such massive tsunamis (identified as â€œlevel 2â€ tsunamis in Japan), the concept of disaster mitigation using multifaceted countermeasures is essential in addition to the construction of shore protection facilities for tsunamis at relatively high frequencies (â€œlevel 1â€ tsunamis). This study focused on one of such countermeasures, which involved beachside rigid structures. Such structures are expected to be effective for disaster mitigation because of the complementation of shore protection facilities by reducing tsunami force on rear buildings. To quantitatively evaluate the influence of beachside rigid structures on tsunami force, a three-dimensional (3-D) numerical analysis was performed using a 3-D coupled fluid-structure-sediment-seabed interaction model (FS3M; Nakamura and Mizutani, 2014).

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16

del Grosso, Andrea E., and Paolo Basso. "Deployable Structures." Advances in Science and Technology 83 (September 2012): 122–31. http://dx.doi.org/10.4028/www.scientific.net/ast.83.122.

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Deployable structures have been developed for many different applications from space to mechanical and civil engineering. In the paper the general concepts of deployable structures, combining static and kinematic behaviour are presented first, also discussing their relationships with adaptive and variable geometry structures. Reported applications to civil engineering and architecture are then reviewed and categorized. The characteristics of the following systems are summarized : 1. Pneumatic Structures. 2. Tensegrity Structures. 3. Scissor-like Structures. 4. Rigid Foldable Origami. 5. Mutually Supported Structures. The problems of form finding, direct and inverse kinematics, actuation and self-deployability for some of the most interesting among the above structural types are then discussed in the paper. Some examples involving rigid foldable origami and mutually supported structures are finally presented.

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17

Baouendi, Mohamed S., and Linda P. Rothschild. "Semi-rigid CR structures and holomorphic extendability." Journées équations aux dérivées partielles, no. 1 (1985): 1–4. http://dx.doi.org/10.5802/jedp.293.

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18

BOB, Corneliu, Andras LEIDAL, and Liana BOB. "Reinforced Concrete Precast Structures with Rigid Connections." IABSE Congress Report 17, no. 7 (January 1, 2008): 380–81. http://dx.doi.org/10.2749/222137908796293073.

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19

DAGANI, RON. "Largest Hydrocarbon Molecules Have Rigid Dendritic Structures." Chemical & Engineering News 71, no. 15 (April 12, 1993): 26–37. http://dx.doi.org/10.1021/cen-v071n015.p026.

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20

Olsen, Poul Colberg. "Rigid plastic analysis of plane frame structures." Computer Methods in Applied Mechanics and Engineering 179, no. 1-2 (August 1999): 19–30. http://dx.doi.org/10.1016/s0045-7825(99)00039-0.

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21

FANG, YONG. "Invariant rigid geometric structures and expanding maps." Ergodic Theory and Dynamical Systems 32, no. 3 (May 6, 2011): 941–59. http://dx.doi.org/10.1017/s0143385711000010.

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AbstractIn the first part of this paper, we consider several natural problems about locally homogeneous rigid geometric structures. In particular, we formulate a notion of topological completeness which is adapted to the study of global rigidity of chaotic dynamical systems. In the second part of the paper, we prove the following result: let φ be a C∞ expanding map of a closed manifold. If φ preserves a topologically complete C∞ rigid geometric structure, then φ is C∞ conjugate to an expanding infra-nilendomorphism.

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22

Kobel, Johannes, Frederic M. Evers, and Willi H. Hager. "Impulse Wave Overtopping at Rigid Dam Structures." Journal of Hydraulic Engineering 143, no. 6 (June 2017): 04017002. http://dx.doi.org/10.1061/(asce)hy.1943-7900.0001271.

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23

Mentrasti, L. "Paradoxes in Rigid-Body Kinematics of Structures." Journal of Applied Mechanics 65, no. 1 (March 1, 1998): 218–22. http://dx.doi.org/10.1115/1.2789029.

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The paper discusses two paradoxes appearing in the kinematic analysis of interconnected rigid bodies: there are structures that formally satisfy the classical First and Second Theorem on kinematic chains, but do not have any motion. This can arise when some centers of instantaneous rotation (CIR) relevant to two bodies coincide with each other (first kind paradox) or when the CIRs relevant to three bodies lie on a straight line (second kind paradox). In these cases two sets of new theorems on the CIRs can be applied, pointing out sufficient conditions for the nonexistence of a rigid-body motion. The question is clarified by applying the presented theory to several examples.

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24

Bachmann, Jonas A., Michalis F. Vassiliou, and Božidar Stojadinovic. "Rolling and rocking of rigid uplifting structures." Earthquake Engineering & Structural Dynamics 48, no. 14 (August 19, 2019): 1556–74. http://dx.doi.org/10.1002/eqe.3213.

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25

Kulkarni, Jeevan A., and R. S. Jangid. "Rigid body response of base-isolated structures." Journal of Structural Control 9, no. 3 (2002): 171–88. http://dx.doi.org/10.1002/stc.11.

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26

Sun, Zhe, Taisuke Matsuno, and Hiroyuki Isobe. "Stereoisomerism and Structures of Rigid Cylindrical Cycloarylenes." Bulletin of the Chemical Society of Japan 91, no. 6 (June 15, 2018): 907–21. http://dx.doi.org/10.1246/bcsj.20180051.

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27

Dumitrescu, Sorin. "Locally homogeneous rigid geometric structures on surfaces." Geometriae Dedicata 160, no. 1 (October 16, 2011): 71–90. http://dx.doi.org/10.1007/s10711-011-9670-4.

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28

Lewis, G. M. "Imperfection sensitivity of structures with semi-rigid joints." Thin-Walled Structures 27, no. 2 (February 1997): 187–201. http://dx.doi.org/10.1016/s0263-8231(97)84200-0.

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29

O'Keeffe, Michael. "Rigid, flexible and impossible zeolite and related structures." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 372, no. 2008 (February 13, 2014): 20120034. http://dx.doi.org/10.1098/rsta.2012.0034.

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The flexibility or otherwise of periodic tetrahedral TX 2 frameworks formed by corner-sharing regular TX 4 tetrahedra is discussed. In particular, when T–X–T angle constraints are included, a suitable embedding can often only be found, if at all, in an symmetry less than the maximum possible for that topology. Examples illustrating this are adduced.

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30

van Knippenberg, Ruud, Arjan Habraken, and Patrick Teuffel. "Deployable Structures Using Non-singular Rigid Foldable Patterns." Procedia Engineering 155 (2016): 388–97. http://dx.doi.org/10.1016/j.proeng.2016.08.042.

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31

Mohr, Dirk, and Tomasz Wierzbicki. "On the Crashworthiness of Shear-Rigid Sandwich Structures." Journal of Applied Mechanics 73, no. 4 (November 7, 2005): 633–41. http://dx.doi.org/10.1115/1.2165232.

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This paper deals with the evaluation of the crashworthiness of thin-walled sandwich box structures for automotive applications. Quasi-static crushing simulations are carried out to estimate the energy absorption of prismatic box columns made from sandwich sheets. The sandwich sheets have perforated cores of different densities with staggered holes perpendicular to the panel faces. It is found that the specific energy absorption of columns made of sandwich sheets is approximately the same as that of conventional columns composed of homogeneous sheets of the same total wall thickness. Furthermore, theoretical analysis indicates that by increasing the core thickness, sandwich structures could be up to 50% lighter while providing the same mean crushing force. However, these gains may not be achieved in practical applications since increasing the core thickness also increases the likelihood of premature face sheet fracture during crushing.

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32

Tangaramvong, Sawekchai, Di Wu, and Wei Gao. "Interval Limit Analysis of Rigid Perfectly Plastic Structures." Journal of Engineering Mechanics 141, no. 1 (January 2015): 06014016. http://dx.doi.org/10.1061/(asce)em.1943-7889.0000850.

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33

Kuklík, Petr, Anna Kuklíková, and Anna Gregorová. "Timber-Concrete Composite Structures with Semi-Rigid Connections." Key Engineering Materials 677 (January 2016): 282–87. http://dx.doi.org/10.4028/www.scientific.net/kem.677.282.

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This paper deals with behavior of timber-concrete composite structures with mechanical connection systems. The paper is focused to two different connection systems: using dowel-type fasteners and using special surface connector. Behavior of dowel-type connection system is based on modification of Johansen ́s equations valid for timber to timber connections. Behavior of connection system with special surface connector is evaluated by experiments and numerical simulations.

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34

Igic, Tomislav, Slavko Zdravkovic, Dragan Zlatkov, Srdjan Zivkovic, and Nikola Stojic. "Stability design of structures with semi-rigid connections." Facta universitatis - series: Architecture and Civil Engineering 8, no. 2 (2010): 261–75. http://dx.doi.org/10.2298/fuace1002261i.

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The paper points out to the differences of the First order theory and Second order theory and of the significance in practical calculations. The paper presents theoretical foundations and expressions of calculations of impacts on the stability of structure, that is, review of the Second order theory in a bridge with members semi-rigid connections in joints. In the real structures in general and the especially in the prefabricated structures the connection of members in the nodes can be partially rigid which can be very significant for the changes in tension and deformation. If the influence of the normal forces is significant and the structure is slender then it is necessary to carry out a calculation according to the Second order theory because the balance between internal and external forces really established on the deformed configuration and displacements in strict formation are also unreal. The importance and significance of the calculations and distribution of impact according to the Second order theory were presented in numerical examples as well as the calculation of critical load as well as the buckling length of members with semi-rigid connections in joint.

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35

Lin, R. M., and M. K. Lim. "Eigenvector derivatives of structures with rigid body modes." AIAA Journal 34, no. 5 (May 1996): 1083–85. http://dx.doi.org/10.2514/3.13195.

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36

Kim, Junhyun, Dongheok Shin, Sungchan Lee, Jaegyu Lee, Seongwoon Kwon, Seulhee Yoon, Do-Sik Yoo, and Kyoungsik Kim. "Auxetic structures with regularly configured rigid sliding units." physica status solidi (b) 254, no. 6 (January 20, 2017): 1600335. http://dx.doi.org/10.1002/pssb.201600335.

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37

Singh, Rina, and Allan S. Hay. "Polyphthalazines and polyisoquinolines with rigid-rod-like structures." Makromolekulare Chemie. Macromolecular Symposia 54-55, no. 1 (February 1992): 357–63. http://dx.doi.org/10.1002/masy.19920540127.

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38

Domingues Costa, J. L., R. Bento, Vsevolod Levtchitch, and M. P. Nielsen. "Rigid-plastic seismic design of reinforced concrete structures." Earthquake Engineering & Structural Dynamics 36, no. 1 (2006): 55–76. http://dx.doi.org/10.1002/eqe.617.

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39

Huesman, R. H., G. J. Klein, J. A. Kimdon, Chaincy Kuo, and S. Majumdar. "Deformable registration of multimodal data including rigid structures." IEEE Transactions on Nuclear Science 50, no. 3 (June 2003): 389–92. http://dx.doi.org/10.1109/tns.2003.812443.

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40

Lauder, Alan G. B. "Degenerations and limit Frobenius structures in rigid cohomology." LMS Journal of Computation and Mathematics 14 (February 1, 2011): 1–33. http://dx.doi.org/10.1112/s1461157009000588.

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AbstractWe introduce a ‘limiting Frobenius structure’ attached to any degeneration of projective varieties over a finite field of characteristicpwhich satisfies ap-adic lifting assumption. Our limiting Frobenius structure is shown to be effectively computable in an appropriate sense for a degeneration of projective hypersurfaces. We conjecture that the limiting Frobenius structure relates to the rigid cohomology of a semistable limit of the degeneration through an analogue of the Clemens–Schmidt exact sequence. Our construction is illustrated, and conjecture supported, by a selection of explicit examples.

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41

Grabois, M., and F. Herrmann. "Momentum flow diagrams for just-rigid static structures." European Journal of Physics 21, no. 6 (November 1, 2000): 591–601. http://dx.doi.org/10.1088/0143-0807/21/6/310.

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42

Kodera, Shunnosuke, Tomoki WATANABE, Yoshiyuki YOKOYAMA, and Takeshi HAYAKAWA. "Driving of microgripper having soft-rigid hybrid structures." Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2020 (2020): 1P1—P02. http://dx.doi.org/10.1299/jsmermd.2020.1p1-p02.

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43

Gattas, J. M., and Z. You. "Geometric assembly of rigid-foldable morphing sandwich structures." Engineering Structures 94 (July 2015): 149–59. http://dx.doi.org/10.1016/j.engstruct.2015.03.019.

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44

An, Jinpeng. "Rigid geometric structures, isometric actions, and algebraic quotients." Geometriae Dedicata 157, no. 1 (April 16, 2011): 153–85. http://dx.doi.org/10.1007/s10711-011-9603-2.

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45

Nevo, Amos, and Robert J. Zimmer. "Invariant Rigid Geometric Structures and Smooth Projective Factors." Geometric and Functional Analysis 19, no. 2 (July 11, 2009): 520–35. http://dx.doi.org/10.1007/s00039-009-0005-7.

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46

Zlatkov, Dragan, Slavko Zdravkovic, Biljana Mladenovic, and Radoslav Stojic. "Matrix formulation of dynamic design of structures with semi-rigid connections." Facta universitatis - series: Architecture and Civil Engineering 9, no. 1 (2011): 89–104. http://dx.doi.org/10.2298/fuace1101089z.

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The structures with semi-rigid connections comprise systems with the connections in joints which are not absolutely rigid, but allow, in general, some relative movements in directions of generalized displacements. Such type of connections is considered very little, or not at all, in designing of structures in today's engineering practice. If the influence of rigidity of semi-rigid connections is underestimated, and they are treated in the design as pinned, it has a negative impact on cost of a structure. But if it is overstated, the calculation results are not on the side of safety, what is reflected on bearing capacity, durability and stability, especially in the case of precast structures. Therefore Eurocodes take due account to the structures with semi-rigid connections. Matrix formulation of the analysis of systems with semi-rigid connections opens wide possibilities for relatively easy calculation by use of computers that is shown by example of seismic design. The interpolation functions, stiffness matrix, equivalent load vectors, and the consistent mass matrix are presented in this paper, particularly with an emphasis on systems with semi-rigid connection.

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47

KAZAMA, Motoki, and Takamasa INATOMI. "Earthquake response analyses for embedded rigid structures using a rigid body-ground spring model." Doboku Gakkai Ronbunshu, no. 410 (1989): 425–34. http://dx.doi.org/10.2208/jscej.1989.410_425.

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48

Das, Rabindra N., John M. Lauffer, Frank D. Egitto, Mark D. Poliks, and Voya R. Markovich. "Rediscovering Multilayer Rigid-Flex with Z-interconnect Technology." International Symposium on Microelectronics 2012, no. 1 (January 1, 2012): 000949–54. http://dx.doi.org/10.4071/isom-2012-wp54.

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Rigid-flex allows designers to replace multiple substrates interconnected with connectors, wires, and ribbon cables with a single package offering improved performance, reliability, and a potential cost-effective solution. However, processing and materials selection is critical in order to achieve high quality multilayer, rigid-flex structures. To date, there is no technology available which can economically produce high density multilayer rigid-flex with rigid or flex originating from any layer in the stack. In the present study, a novel strategy allowing for multi-layer rigid flex structures is reported. Specifically, metal-to-metal z-axis electrical interconnection among the flexible and rigid elements during lamination to form a single package rigid-flex structure is described. Conductive joints are formed during lamination using an electrically conductive adhesive (ECA). As a result, structures can be fabricated with multiple flexible elements at any arbitrary layer. Recent development work on flex joining using different pre-pregs is highlighted, particularly with respect to their integration in laminate chip carrier substrates, and the reliability of the joints formed between the rigid and flex surfaces. A variety of rigid-flex structures were fabricated, with 1 to 3 flex layers laminated into printed wiring board substrates. Photographs and optical microscopy were used to investigate the joining, bending, and failure mechanism. Several classes of flexible materials, including polyimides, PTFE, liquid crystal polymer (LCP), have been used to develop high-performance rigid-flex packages. Rigid-flex packages with embedded passives and actives are also being investigated.

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49

Wang, Zhong-Qi, Yuan Yang, Yong-Gang Kang, and Zheng-Ping Chang. "A location optimization method for aircraft weakly-rigid structures." International Journal for Simulation and Multidisciplinary Design Optimization 5 (2014): A18. http://dx.doi.org/10.1051/smdo/2013014.

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Since aircraft weakly-rigid structure has large size and weak stiffness, there has serious deformation during assembly process. The current deformation analysis theory of rigid assembly is not applicable. Based on the N-2-1 (N > 3) locating principle, this paper presents a methodology for weakly-rigid parts. An optimization algorithm combines finite element analysis and nonlinear programming methods to find the optimal number and position of the locating points in order to minimize the assembly deformation. An example application study is presented to demonstrate the optimization procedure and its effectiveness by using the software of ABAQUS.

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50

Saito, Kazuya, Akira Tsukahara, and Yoji Okabe. "Designing of self-deploying origami structures using geometrically misaligned crease patterns." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 472, no. 2185 (January 2016): 20150235. http://dx.doi.org/10.1098/rspa.2015.0235.

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Usually, origami-based morphing structures are designed on the premise of ‘rigid folding’, i.e. the facets and fold lines of origami can be replaced with rigid panels and ideal hinges, respectively. From a structural mechanics viewpoint, some rigid-foldable origami models are overconstrained and have negative degrees of freedom (d.f.). In these cases, the singularity in crease patterns guarantees their rigid foldability. This study presents a new method for designing self-deploying origami using the geometrically misaligned creases. In this method, some facets are replaced by ‘holes’ such that the systems become a 1-d.f. mechanism. These perforated origami models can be folded and unfolded similar to rigid-foldable (without misalignment) models because of their d.f. focusing on the removed facets, the holes will deform according to the motion of the frame of the remaining parts. In the proposed method, these holes are filled with elastic parts and store elastic energy for self-deployment. First, a new extended rigid-folding simulation technique is proposed to estimate the deformation of the holes. Next, the proposed method is applied on arbitrary-size quadrilateral mesh origami. Finally, by using the finite-element method, the authors conduct numerical simulations and confirm the deployment capabilities of the models.

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