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Journal articles on the topic 'Flexible structures'

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Published: 4 June 2021
Last updated: 25 May 2024

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1

Bearman, P. W. "Tall flexible structures." Journal of Wind Engineering and Industrial Aerodynamics 69-71 (July 1997): 129–30. http://dx.doi.org/10.1016/s0167-6105(97)00224-9.

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2

Maddalena, Francesco, Danilo Percivale, and Franco Tomarelli. "Adhesive flexible material structures." Discrete & Continuous Dynamical Systems - B 17, no. 2 (2012): 553–74. http://dx.doi.org/10.3934/dcdsb.2012.17.553.

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3

Eversheim, W., P. Kettner, and K. P. Merz. "Planning flexible system structures." Advanced Manufacturing Processes 2, no. 1-2 (January 1987): 189–98. http://dx.doi.org/10.1080/10426918708953187.

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4

Eversheim, W., P. Kettner, and K. P. Mertz. "Planning flexible system structures." Assembly Automation 6, no. 3 (March 1986): 141–44. http://dx.doi.org/10.1108/eb004201.

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5

ARAI, Fumihito, and Toshio FUKUDA. "Flexibility control of flexible structures. 3rd Report. Physical parameters identification for flexible structures." Transactions of the Japan Society of Mechanical Engineers Series C 56, no. 532 (1990): 3279–86. http://dx.doi.org/10.1299/kikaic.56.3279.

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6

Sánchez-Cuenca López, Luis. "Geometría flexible para las estructuras de barras." Informes de la Construcción 45, no. 430 (April 30, 1994): 31–42. http://dx.doi.org/10.3989/ic.1994.v45.i430.1140.

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7

Pai, P. Frank, and Mark J. Schulz. "Modeling of Highly Flexible Structures." Journal of Spacecraft and Rockets 37, no. 3 (May 2000): 419–21. http://dx.doi.org/10.2514/2.3577.

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8

Homann, Ulrich, Michael Rill, and Andreas Wimmer. "Flexible value structures in banking." Communications of the ACM 47, no. 5 (May 1, 2004): 34. http://dx.doi.org/10.1145/986213.986234.

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9

Kalmykova, Anastasiya, and Pavel Kabytov. "“Flexible” Structures of Public Administration." Journal of Russian Law 7, no. 8 (October 20, 2020): 1. http://dx.doi.org/10.12737/jrl.2019.8.10.

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10

Dennison, W. F. "Flexible Structures and Secondary Schools." Educational Management & Administration 13, no. 1 (January 1985): 29–36. http://dx.doi.org/10.1177/174114328501300105.

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11

Rajaram, S., and J. L. Junkins. "Identification of vibrating flexible structures." Journal of Guidance, Control, and Dynamics 8, no. 4 (July 1985): 463–70. http://dx.doi.org/10.2514/3.20006.

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12

Khatri, Sven. "Behavioral Identification of Flexible Structures." IFAC Proceedings Volumes 29, no. 1 (June 1996): 4593–98. http://dx.doi.org/10.1016/s1474-6670(17)58406-2.

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13

Kashiwase, Toshio, Masaki Tabata, Kazuo Tsuchiya, and Sadao Akishita. "Shape Control of Flexible Structures." Journal of Intelligent Material Systems and Structures 2, no. 1 (January 1991): 110–25. http://dx.doi.org/10.1177/1045389x9100200107.

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14

Liao, Wen‐Gen. "Hydrodynamic Interaction of Flexible Structures." Journal of Waterway, Port, Coastal, and Ocean Engineering 111, no. 4 (January 1985): 719–31. http://dx.doi.org/10.1061/(asce)0733-950x(1985)111:4(719).

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15

Baruh, H., and S. Ratan. "Damage Detection in Flexible Structures." Journal of Sound and Vibration 166, no. 1 (September 1993): 21–30. http://dx.doi.org/10.1006/jsvi.1993.1280.

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16

Hu, Zhengyu, and Yuzhu Li. "NUMERICAL STUDY ON THE INTERACTION BETWEEN PERIODIC WAVES AND A FLEXIBLE WALL." Coastal Engineering Proceedings, no. 37 (September 1, 2023): 3. http://dx.doi.org/10.9753/icce.v37.structures.3.

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Coastal structures were usually considered as stiff in the majority of studies related to wave structure interaction I n certain situations, such as impulsive wave loading on flexible breakwaters, ship hulls, tank walls hydroelasticity can be of importance for both wave dynamics and structural responses Akrish et al. (2018) showed that hydroelastic effects can either relax or amplify the hydrodynamic characteristics (i.e., wave run up and force) and structural oscillations in a deformable cantilever wal l interacting with an incident wave group. For flexible coastal defenses, Huang and Li (2022) showed that an elastic horizontal plate breakwater can exhibit a better performance of wave damping than a rigid one. Sree et al. (2021) experimentally investigated a submerged horizontal viscoelastic plate under surface waves. They reported a complete cutoff of the wave energy with the flexible plate. However, the hydroelasticity of a steep fronted structure in nonlinear progressive waves was not yet studied in a de tailed manner , which requires advanced numerical methods for modelling the nonlinear interaction between the fluid and the solid with finite deformations. The present study focus es on the hydroelastic behavior of a flexible vertical wall in nonlinear periodic waves with different wave periods (or frequencies )). The effects of the structural stiffness on the wave evolution and the structural deformation are investigated with a fully coupled wave structure interaction model.
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17

Eliashberg, Yakov, Sheel Ganatra, and Oleg Lazarev. "Flexible Lagrangians." International Mathematics Research Notices 2020, no. 8 (May 9, 2018): 2408–35. http://dx.doi.org/10.1093/imrn/rny078.

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Abstract We introduce and discuss notions of regularity and flexibility for Lagrangian manifolds with Legendrian boundary in Weinstein domains. There is a surprising abundance of flexible Lagrangians. In turn, this leads to new constructions of Legendrians submanifolds and Weinstein manifolds. For instance, many closed n-manifolds of dimension n > 2 can be realized as exact Lagrangian submanifolds of $T^{\ast }S^n$ with possibly exotic Weinstein symplectic structures. These Weinstein structures on $T^{\ast } S^n$, infinitely many of which are distinct, are formed by a single handle attachment to the standard 2n-ball along the Legendrian boundaries of flexible Lagrangians. We also formulate a number of open problems.
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18

FUKUDA, Toshio. "Mechanism and control of flexible structures." Journal of the Japan Society for Precision Engineering 54, no. 5 (1988): 838–42. http://dx.doi.org/10.2493/jjspe.54.838.

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19

Vanitha, V., G. Subbiah, and M. Navaneethakrishnan. "Flexible Fuzzy Softification of Group Structures." International Journal of Scientific Research in Mathematical and Statistical Sciences 5, no. 4 (August 31, 2018): 389–94. http://dx.doi.org/10.26438/ijsrmss/v5i4.389394.

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20

Dieciuc, Michael A., and Jonathan R. Folstein. "Typicality: Stable structures and flexible functions." Psychonomic Bulletin & Review 26, no. 2 (November 27, 2018): 491–505. http://dx.doi.org/10.3758/s13423-018-1546-2.

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21

Capitani, Gloria, and Marco Tibaldi. "Integrated control of large flexible structures." International Journal of Control 47, no. 2 (February 1, 1988): 569–80. http://dx.doi.org/10.1080/00207178808906032.

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22

Trudeau, Charles, Martin Bolduc, Patrick Beaupré, Patrice Topart, Christine Alain, and Sylvain Cloutier. "Inkjet-Printed Flexible Active Multilayered Structures." MRS Advances 2, no. 18 (2017): 1015–20. http://dx.doi.org/10.1557/adv.2017.237.

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ABSTRACTActive inkjet materials are invoked in the fabrication of optoelectronic devices. These types of multilayer assemblies contain a variety of commercially available ink formulations. It is envisioned that a dielectric SU-8 material can be used in a FET-like structure to form an interlayer between conductive silver and semi-conductive MWCNT-doped PEDOT:PSS ink layers. These printed structures may be fabricated onto a polyimide based flexible substrate, for instance. These structures are a starting point for offering valuable information on layer-on-layer printing interactions and interface problematics within a complete inkjet device fabrication.
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23

Baldelli, Dario H., and Ricardo S. Sanchez Pena. "Uncertainty Modeling in Aerospace Flexible Structures." Journal of Guidance, Control, and Dynamics 22, no. 4 (July 1999): 611–14. http://dx.doi.org/10.2514/2.7637.

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24

Gawronski, W. K., and J. T. Sawicki. "Balanced Dissipative Controllers for Flexible Structures." Journal of Dynamic Systems, Measurement, and Control 119, no. 1 (March 1, 1997): 5–9. http://dx.doi.org/10.1115/1.2801215.

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A balanced approach to shaping the closed-loop properties of the dissipative controllers for flexible structures is presented. In the balanced representation the properties of flexible structures are introduced, and a simple method of designing of the dissipative controllers is obtained. It relates the controller gains with the closed-loop pole locations. The examples illustrate the accuracy of the design method.
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25

Yen, G. G., and M. K. Kwak. "Dynamic modeling of flexible multibody structures." IEEE Transactions on Aerospace and Electronic Systems 35, no. 1 (1999): 148–56. http://dx.doi.org/10.1109/7.745688.

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26

Juang, Jer-Nan, Kyong B. Lim, and John L. Junkins. "Robust eigensystem assignment for flexible structures." Journal of Guidance, Control, and Dynamics 12, no. 3 (May 1989): 381–87. http://dx.doi.org/10.2514/3.20419.

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27

Gawronski, Wodek, and Trevor Williams. "Model reduction for flexible space structures." Journal of Guidance, Control, and Dynamics 14, no. 1 (January 1991): 68–76. http://dx.doi.org/10.2514/3.20606.

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28

Amirouche, F. M. L., and R. L. Huston. "Dynamics of Large Constrained Flexible Structures." Journal of Dynamic Systems, Measurement, and Control 110, no. 1 (March 1, 1988): 78–83. http://dx.doi.org/10.1115/1.3152654.

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This paper presents an automated procedure useful in the study of large constrained flexible structures, undergoing large specified motions. The structure is looked upon as a “partially open tree” system, containing closed loops in some of the branches. The governing equations are developed using Kane’s equations as formulated by Huston et al. The accommodation of the constraint equations is based on the use of orthogonal complement arrays. The flexibility and oscillations of the bodies is modelled using finite segment modelling, structure analysis, and scaling techniques. The procedures developed are expected to be useful in applications including robotics, space structures, and biosystems.
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29

Ertur, David, Yugang Li, and Christopher D. Rahn. "Adaptive Vibration Isolation for Flexible Structures." Journal of Vibration and Acoustics 121, no. 4 (October 1, 1999): 440–45. http://dx.doi.org/10.1115/1.2894000.

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Vibration isolation control for flexible structures restricts the response resulting from external disturbances to areas not requiring high precision positioning and/or pointing. This paper introduces adaptive feedback isolation controllers, based on Lyapunov theory, that regulate and allow tracking of the undisturbed (controlled) coordinates in a flexible structure. Under assumptions of inertially decoupled controlled and uncontrolled coordinates, symmetric and positive definite mass matrix for the controlled subsystem, asymptotically stable eigenvalues for the uncontrolled subsystem, and bounded disturbances, an adaptive regulator asymptotically drives the controlled coordinates to zero. Under similar assumptions, an adaptive tracking algorithm drives the controlled coordinates to desired time trajectories. Experimental results on a three mass system compare the response of the adaptive isolation controllers with standard PID control. The adaptive regulator provides faster transient decay than PID control using the same control effort. The adaptive tracking controller has the same tracking error as PID using 30 percent less control effort.
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30

Altintas, Y., D. Montgomery, and E. Budak. "Dynamic Peripheral Milling of Flexible Structures." Journal of Engineering for Industry 114, no. 2 (May 1, 1992): 137–45. http://dx.doi.org/10.1115/1.2899766.

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A dynamic model for peripheral milling of very flexible plate type structures has been presented. The structural dynamics of a cantilevered plate structure is modelled at the tool-workpiece contact zone. The interaction of the very flexible plate structure and rigid end mill during dynamic milling is modelled. The variation in surface, chip thickness, and structural dynamics of the plate are considered in determining the milling forces. The proposed model provides surface finish form errors displacements at the tool-workpiece contact zone, and cutting forces for dynamic end milling operations.
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31

TOKIMOTO, Hideki, and Kazuo YAMAMOTO. "Impact Simulations of Pressurized Flexible Structures." Proceedings of The Computational Mechanics Conference 2002.15 (2002): 233–34. http://dx.doi.org/10.1299/jsmecmd.2002.15.233.

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32

Meehan, P. M. "Design of Anchorage for Flexible Structures." Procedia Engineering 130 (2015): 329–41. http://dx.doi.org/10.1016/j.proeng.2015.12.226.

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33

Gawronski, W. "Discrete-time norms of flexible structures." Journal of Sound and Vibration 264, no. 5 (July 2003): 983–1004. http://dx.doi.org/10.1016/s0022-460x(02)01184-7.

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34

Patel, Hiren, Rahul Kumar, and Shaikh Faruque Ali. "SEREP Integrated Control of Flexible Structures." IFAC-PapersOnLine 53, no. 1 (2020): 51–56. http://dx.doi.org/10.1016/j.ifacol.2020.06.009.

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35

Krenk, Steen, and Jan Høgsberg. "Optimal resonant control of flexible structures." Journal of Sound and Vibration 323, no. 3-5 (June 2009): 530–54. http://dx.doi.org/10.1016/j.jsv.2009.01.031.

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36

Burdisso, R. A., and C. R. Fuller. "Eigenproperties of Feedforward Controlled Flexible Structures." Journal of Intelligent Material Systems and Structures 2, no. 4 (October 1991): 494–507. http://dx.doi.org/10.1177/1045389x9100200405.

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37

Sadek, Ibrahim S. "Optimal pointwise control of flexible structures." Mathematical and Computer Modelling 17, no. 9 (May 1993): 89–99. http://dx.doi.org/10.1016/0895-7177(93)90019-u.

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38

Ramakrishnan, Jayant V., S. Vittal Rao, and Leslie R. Koval. "Reduced-Order Modeling of Flexible Structures." Journal of Guidance, Control, and Dynamics 11, no. 5 (September 1988): 459–64. http://dx.doi.org/10.2514/3.56472.

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39

De Farias, D. P., M. C. De Oliveira, and J. C. Geromel. "MixedH2/H∞control of flexible structures." Mathematical Problems in Engineering 6, no. 6 (2001): 557–98. http://dx.doi.org/10.1155/s1024123x00001484.

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This paper addresses the design of full order linear dynamic output feedback controllers for flexible structures. UnstructuredH∞uncertainty models are introduced for systems in modal coordinates and in reduced order form. Then a controller is designed in order to minimize a givenH2performance function while keeping the maximum supportedH∞perturbation below some appropriate level. To solve this problem we develop an algorithm able to provide local optimal solutions to optimization problems with convex constraints and non-convex but differentiable objective functions. A controller design procedure based on a trade-off curve is proposed and a simple example is solved, providing a comparison between the proposed method and the usual minimization of an upper boundH2to the norm. The method is applied to two different flexible structure theoretical models and the properties of the resulting controllers are shown in several simulations.
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40

Indri, M., and A. Tornambè. "Robust regulation for flexible piezoelectric structures." IFAC Proceedings Volumes 27, no. 11 (September 1994): 199–204. http://dx.doi.org/10.1016/s1474-6670(17)47647-6.

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41

Hakim, S., and M. B. Fuchs. "Shape estimation of distorted flexible structures." Structural Optimization 12, no. 4 (December 1996): 237–43. http://dx.doi.org/10.1007/bf01197363.

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42

Rapoport, Vladimir. "Constancy and change: Flexible organization structures." Systems Practice 2, no. 4 (December 1989): 433–50. http://dx.doi.org/10.1007/bf01062327.

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43

Croome, Derek J. "Acoustic design for flexible membrane structures." Applied Acoustics 18, no. 6 (1985): 399–433. http://dx.doi.org/10.1016/0003-682x(85)90022-2.

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44

Schmidt, Carsten, Johann Fix, Marc Timmermann, and Simon Werner. "Flexible Production of Individualized CFRP Structures." Lightweight Design worldwide 12, no. 6 (December 2019): 58–63. http://dx.doi.org/10.1007/s41777-019-0060-1.

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45

Deng, Ru, and Tian He. "Flexible Solid-State Lithium-Ion Batteries: Materials and Structures." Energies 16, no. 12 (June 6, 2023): 4549. http://dx.doi.org/10.3390/en16124549.

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With the rapid development of research into flexible electronics and wearable electronics in recent years, there has been an increasing demand for flexible power supplies, which in turn has led to a boom in research into flexible solid-state lithium-ion batteries. The ideal flexible solid-state lithium-ion battery needs to have not only a high energy density, but also good mechanical properties. We have taken a systematic and comprehensive overview of our work in two main areas: flexible materials and flexible structures. Specifically, we first discuss materials for electrodes (carbon nanotubes, graphite, carbon fibers, carbon cloth, and conducting polymers) and flexible solid materials for electrolytes. A discussion of the structural design of flexible solid-state lithium-ion batteries, including one-dimensional fibrous, two-dimensional thin-film and three-dimensional flexible lithium-ion batteries, follows this. In addition, the advantages and disadvantages of different materials and structures are summarized, and the main challenges for the future design of flexible solid-state lithium-ion batteries are pointed out, hopefully providing some reference for the research of flexible solid-state lithium-ion batteries.
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46

Hegel, Lena, Andrea Kauth, Karsten Seidl, and Sven Ingebrandt. "Self-Assembling Flexible 3D-MEAs for Cortical Implants." Current Directions in Biomedical Engineering 7, no. 2 (October 1, 2021): 359–62. http://dx.doi.org/10.1515/cdbme-2021-2091.

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Abstract Flexible Multi Electrode Arrays (MEAs) for neural interfacing reduce the mechanical mismatch between the soft brain tissue and the electrode arrays allowing accurate signal recordings and neural stimulation while reducing inflammatory responses. Many standard manufacturing processes of MEAs are designed for planar structures and the production of three-dimensional structures is challenging. In the present study, shaft structures with one to two circular gold microelectrodes (10 - 20 μm), each on a base polyimide (PI) substrate, were investigated. We describe a fabrication method, with which shafts made from bi-layer PI flip into the third dimension, which is a first step towards spontaneous assembly of electrodes in flexible 3D MEAs for neuroelectronic applications. A lift-up of the shafts was achieved by the contraction of a second PI layer and a steady nitrogen flow during polycondensation. This shrinking PI was structured in pits with a width of 5 - 600 μm. We achieved liftup angles of up to 42 degrees. The shaft structures can be hardened and later be used for neural implantation experiments.
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47

Han, Jae, Kwi-Il Park, and Chang Jeong. "Dual-Structured Flexible Piezoelectric Film Energy Harvesters for Effectively Integrated Performance." Sensors 19, no. 6 (March 24, 2019): 1444. http://dx.doi.org/10.3390/s19061444.

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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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48

Dassoundo, Mafoya Landry. "Relative (pre-)anti-flexible algebrasnand associated algebraic structures." Quasigroups and Related Systems 30, no. 1(47) (May 2022): 31–46. http://dx.doi.org/10.56415/qrs.v30.03.

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Pre-anti-flexible family algebras are introduced and used to define and describe the notions of Ωc-relative anti-flexible algebras, left and right pre-Lie family algebras and Ωc-relative Lie algebras. The notion of Ωc-relative pre-anti-flexible algebras are introduced and also used to characterize pre-anti-flexible family algebras, left and right pre-Lie family algebras and significant identities associated to these algebraic structures are provided. Finally, a generalization of the Rota-Baxter operators defined on an Ωc-relative anti-flexible algebra is introduced and it is also proved that both Rota-Baxter operators and its generalization provide Ωc-relative pre-antiflexible algebras structures and related consequences are derived.
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49

Fleischman, Robert B., Kenneth T. Farrow, and Kristin Eastman. "Seismic Performance of Perimeter Lateral-System Structures with Highly Flexible Diaphragms." Earthquake Spectra 18, no. 2 (May 2002): 251–86. http://dx.doi.org/10.1193/1.1490547.

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Building structures are typically designed using the assumption that the floor systems serve as a rigid diaphragm between the vertical elements of the lateral force-resisting system (lateral system). However, perimeter lateral-system structures with long floor spans possess diaphragms that behave quite flexibly. Difficulty can exist in predicting diaphragm force demand in these structures. Thus, current design may provide insufficient strength to maintain elastic diaphragm response. Inelastic diaphragm response exacerbates the effects of diaphragm flexibility. Such response may lead to poor seismic performance, including nonductile diaphragm failure or structural instability due to high drift demands in the gravity system. An analytical study was performed to determine the effect of diaphragm flexibility and strength on the seismic performance of perimeter lateral-system structures with highly flexible diaphragms. Nonlinear transient analyses were performed using ground motions suites corresponding to multiple levels of hazard for high seismic zones. Design recommendations for flexible diaphragms are presented.
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50

Sarkar, Sunetra, Kartik Venkatraman, and B. Dattaguru. "Dynamics of Flexible Structures With Nonlinear Joints." Journal of Vibration and Acoustics 126, no. 1 (January 1, 2004): 92–100. http://dx.doi.org/10.1115/1.1596548.

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The focus of the present study is to use a technique based on Fourier approximation and Galerkin error minimization to determine periodic solutions of nonlinear jointed flexible structures, and study the effect of joint nonlinearity on the global dynamics of an otherwise linear flexible structure. Results presented here show that the Fourier-Galerkin algorithm is a fast tool for computing periodic motion of nonlinear dynamic systems as compared to time-integration, and the effect of nonlinear joints on the dynamics of an otherwise linear flexible structure modeled as a multi degree of freedom system can be significant.
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