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Articles de revues sur le sujet « Energy–flat morphism »

Auteur : Grafiati

Publié le 2 juin 2025

Mis à jour le 31 juillet 2025

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1

Chillara, Venkata Siva C., Leon M. Headings, Ryohei Tsuruta, Eiji Itakura, Umesh Gandhi, and Marcelo J. Dapino. "Shape memory alloy–actuated prestressed composites with application to morphing automotive fender skirts." Journal of Intelligent Material Systems and Structures 30, no. 3 (2018): 479–94. http://dx.doi.org/10.1177/1045389x18812702.

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This work presents smart laminated composites that enable morphing vehicle structures. Morphing panels can be effective for drag reduction, for example, adaptive fender skirts. Mechanical prestress provides tailored curvature in composites without the drawbacks of thermally induced residual stress. When driven by smart materials such as shape memory alloys, mechanically-prestressed composites can serve as building blocks for morphing structures. An analytical energy-based model is presented to calculate the curved shape of a composite as a function of force applied by an embedded actuator. Sha

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Wang, Changlei, Zirong Luo, Zhongyue Lu, Jianzhong Shang, Mangkuan Wang, and Yiming Zhu. "Design and CFD Analysis of the Energy Efficiency of a Point Wave Energy Converter Using Passive Morphing Blades." Energies 16, no. 1 (2022): 204. http://dx.doi.org/10.3390/en16010204.

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A wave energy converter features the ability to convert wave energy into the electrical energy required by unmanned devices, and its energy-conversion efficiency is an essential aspect in practical applications. This paper proposes a novel point-absorption wave energy converter with passive morphing blades to meet the demand for improved energy-conversion efficiency. We first introduce its concept and design, with its blades forming their shape by adaptive changes with the direction of the water flow. Next, the three-dimensional geometrical-morphing model, energy-conversion model, and energy-c

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Liao, Feng-Chi, Ming-Jen Cheng, and Ruey-Lung Hwang. "Influence of Urban Microclimate on Air-Conditioning Energy Needs and Indoor Thermal Comfort in Houses." Advances in Meteorology 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/585623.

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A long-term climate measurement was implemented in the third largest city of Taiwan, for the check of accuracy of morphing approach on generating the hourly data of urban local climate. Based on observed and morphed meteorological data, building energy simulation software EnergyPlus was used to simulate the cooling energy consumption of an air-conditioned typical flat and the thermal comfort level of a naturally ventilated typical flat. The simulated results were used to quantitatively discuss the effect of urban microclimate on the energy consumption as well as thermal comfort of residential

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Abdessemed, Chawki, Abdessalem Bouferrouk, and Yufeng Yao. "Effects of an Unsteady Morphing Wing with Seamless Side-Edge Transition on Aerodynamic Performance." Energies 15, no. 3 (2022): 1093. http://dx.doi.org/10.3390/en15031093.

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This paper presents an unsteady flow analysis of a 3D wing with a morphing trailing edge flap (TEF) and a seamless side-edge transition between the morphed and static parts of a wing by introducing an unsteady parametrization method. First, a 3D steady Reynolds-averaged Navier–Stokes (RANS) analysis of a statically morphed TEF with seamless transition is performed and the results are compared with both a baseline clean wing and a wing with a traditional hinged flap configuration at a Reynolds number of 0.7 × 106 for a range of angles of attack (AoA), from 4° to 15°. This study extends some pre

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Joshi, Aditya. "Twist Morphing: A Simulation Approach to Compare Twist Morphed Wing and Flap Configuration." International Journal for Research in Applied Science and Engineering Technology 9, no. 10 (2021): 353–59. http://dx.doi.org/10.22214/ijraset.2021.38418.

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Abstract: The aim of the work is to explore and justify an innovative concept in the niche of aerospace industry called as Wing Morphing. To narrow down the study, specifically twist morphing is taken into consideration. Wings with twist and their flap counterparts are compared in similar conditions and their aerodynamic efficiency is observed. The project implementation is done with XFLR5, a VLM solver software. The results show that this concept brings about an improvement in the aerodynamic efficiency without adding much to the drag penalty. Keywords: Wing Morphing, Twist Morphing, Cl (coef

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Leonard, Christian, Erwan Eko Prasetiyo, and Ikbal Rizki Putra. "Design and implementation of electrical system morphing wing flight control on prototype light aircraft." International Journal of Power Electronics and Drive Systems (IJPEDS) 14, no. 2 (2023): 781. http://dx.doi.org/10.11591/ijpeds.v14.i2.pp781-788.

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This journal discusses the implementation and testing of the electrical morphing wing system on light aircraft prototypes, namely technology on the wing to increase the value of aerodynamic efficiency on the wing surface with experimental methods based on knowledge obtained from various literature sources. Using a configuration of eight servo actuators arranged in parallel for the aileron and flap functions as well as setting and control with a six-channel Flysky-FSi6 remote to control the movement of the master and slave aileron actuators as well as the flap function on the morphing wing. The

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Akhter, Md Zishan, Farag Khalifa Omar, and Emad Elnajjar. "Aerodynamic and aeroacoustic characteristics of a bionic morphing flap." Energy Reports 9 (November 2023): 310–15. http://dx.doi.org/10.1016/j.egyr.2023.10.006.

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Akhter, Md Zishan, Ahmed Riyadh Ali, and Farag Khalifa Omar. "Aerodynamics of a three-dimensional bionic morphing flap." Sustainable Energy Technologies and Assessments 52 (August 2022): 102286. http://dx.doi.org/10.1016/j.seta.2022.102286.

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Saparova, Ulbosin, Klara Iniyatova, Qabilbay Toqsanbaev, and Kundizay Joldasova. "Construction of smart actuators brakes for smart city using geoinformation technologies." BIO Web of Conferences 140 (2024): 01009. http://dx.doi.org/10.1051/bioconf/202414001009.

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Actuator manufacturers are presently developing cutting-edge technologies, such as GIS technologies, that fulfill the necessary standards for performance, weight, and power consumption. Historically, manufacturers have selected actuators based on their ability to manipulate and regulate loads. This conceals the dynamic components of certain action solutions. Metrics of significant importance include the duration required to generate this mechanical energy and the amount of work the mechanism performs per unit mass. We utilized these values to establish a selection methodology. Considering the

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Schutzeichel, Maximilian Otto Heinrich, Thorben Strübing, Ozan Tamer, Thomas Kletschkowski, Hans Peter Monner, and Michael Sinapius. "Experimental and Numerical Investigation of a Multifunctional CFRP towards Heat Convection under Aircraft Icing Conditions." Applied Mechanics 3, no. 3 (2022): 995–1018. http://dx.doi.org/10.3390/applmech3030056.

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A combined experimental and numerical approach for the analysis of convective heat transfer from a multifunctional flat plate specimen under aircraft icing conditions is presented. The experimental setup including a heat control and measurement system that is installed in a de-icing test bed. The ambient temperature (θa=[253,283]K), air velocity (va={0,15,30}ms), and angle of attack (α={10,30}∘) are varied, and their influence on heat transfer during local Joule heating is discussed. The numerical approach utilises the results to compute the convective heat transfer coefficients (HTC) based on

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Vasista, Srinivas, Johannes Riemenschneider, Ralf Keimer, Hans Peter Monner, Felix Nolte, and Peter Horst. "Morphing Wing Droop Nose with Large Deformation: Ground Tests and Lessons Learned." Aerospace 6, no. 10 (2019): 111. http://dx.doi.org/10.3390/aerospace6100111.

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A design for a new high lift system that features a morphing wing leading edge “droop nose” has the potential to generate high lift coefficients whilst mitigating airframe noise emissions. This seamless, continuous, and stepless flexible droop nose potentially offers improvements to stall and compressor requirements for an internally-blown active Coandă trailing edge flap. A full-scale, span-trimmed three-dimensional droop nose was manufactured and ground-tested based on results obtained from new design synthesis tools. A new component of the droop nose is the hybrid fiberglass-elastomeric ski

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Emmerson, Parker. "Anterolateral Lite 2." Journal of Liberated Mathematics, May 25, 2025. https://doi.org/10.5281/zenodo.15510371.

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The \emph{Anterolateral Lite 2} formalism arises from a need to robustly track analytic and symbolic distinctions that are often lost in traditional algebraic and geometric frameworks, especially in contexts involving multi-branched solutions and subtle phase phenomena, such as Lorentzian and radical expressions. Classical algebraic structures, which treat coordinates as atomic or globally coherent entities, are prone to \emph{branch collapse}: the unwanted identification of distinct solution branches through singularities, degenerate loci, or insufficiently expressive type systems. Building o

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Thanasis, K. Barlas, and A. Madsen Helge. "Atmospheric Full Scale Testing of a Morphing Trailing Edge Flap System for Wind Turbine Blades." September 1, 2015. https://doi.org/10.5281/zenodo.1109065.

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A novel Active Flap System (AFS) has been developed at DTU Wind Energy, as a result of a 3-year R&D project following almost 10 years of innovative research in this field. The full scale AFS comprises an active deformable trailing edge has been tested at the unique rotating test facility at the Risø Campus of DTU Wind Energy in Denmark. The design and instrumentation of the wing section and the AFS are described. The general description and objectives of the rotating test rig at the Risø campus of DTU are presented, along with an overview of sensors on the setup and the test cases. The pos

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14

Anderson, Lara B., James Gray, Andre Lukas, and Juntao Wang. "Chern-Simons invariants and heterotic superpotentials." Journal of High Energy Physics 2020, no. 9 (2020). http://dx.doi.org/10.1007/jhep09(2020)141.

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Abstract The superpotential in four-dimensional heterotic effective theories contains terms arising from holomorphic Chern-Simons invariants associated to the gauge and tangent bundles of the compactification geometry. These effects are crucial for a number of key features of the theory, including vacuum stability and moduli stabilization. Despite their importance, few tools exist in the literature to compute such effects in a given heterotic vacuum. In this work we present new techniques to explicitly determine holomorphic Chern-Simons invariants in heterotic string compactifications. The key

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Pohl, Martin, and Johannes Riemenschneider. "Design and laboratory tests of flexible trailing edge demonstrators for wind turbine blades." Wind Engineering, October 19, 2022, 0309524X2211267. http://dx.doi.org/10.1177/0309524x221126743.

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To increase the power yield, wind turbines have significantly grown in the last decades. Today, this growth is more and more limited by the weight of the structures and fatigue loads. To compensate these loads, especially flapwise root bending moments, trailing edge flaps can be used. They can change the lift of the blade with little delay to equalize the aerodynamic lift and by this reduce the fatigue amplitude. Such a trailing edge flap has been designed, developed, built and experimentally tested. It uses a flexible, morphing design to seal the entire mechanics against environmental influen

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Alfattani, Rami, and Craig Lusk. "Shape-Morphing Using Bistable Triangles With Dwell-Enhanced Stability." Journal of Mechanisms and Robotics 12, no. 5 (2020). http://dx.doi.org/10.1115/1.4046350.

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Abstract This paper presents a new design concept for a morphing triangle-shaped compliant mechanism. The novel design is a bistable mechanism that has one changeable side. These morphing triangles may be arrayed to create shape-morphing structures. The mechanism design was based on a six-bar dwell mechanism that can fit in a triangle shape and has stable positions at the motion-limit (dead-center) positions. An example of the triangle-shaped compliant mechanism was designed and prototyped: an isosceles triangle with a vertex that changes from 120 deg to 90 deg and vice versa. Three of these i

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Vargas, Guilherme Fuhrmeister, and Edith Beatriz Camaño Schettini. "Application of an alternative mesh morphing method on the numerical modeling of oscillating wave surge converters." RBRH 24 (2019). http://dx.doi.org/10.1590/2318-0331.241920180102.

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ABSTRACT A technology capable of converting the horizontal motion of the ocean waves into energy by the application of a flap-piston system has been improved over the last few years, this device is known as oscillating wave surge converter. This system has great potential, already proven, for electric power generation. The computational fluid dynamics is one of the most used tools for the study of wave energy converters. In this context, the present paper proposes the application of an alternative mesh morphing method to represent the hydrodynamics of these devices, which is based on a bottom

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Lee, Jae-Young, Seongji Han, Munyu Kim, et al. "Variable-stiffness–morphing wheel inspired by the surface tension of a liquid droplet." Science Robotics 9, no. 93 (2024). http://dx.doi.org/10.1126/scirobotics.adl2067.

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Wheels have been commonly used for locomotion in mobile robots and transportation systems because of their simple structure and energy efficiency. However, the performance of wheels in overcoming obstacles is limited compared with their advantages in driving on normal flat ground. Here, we present a variable-stiffness wheel inspired by the surface tension of a liquid droplet. In a liquid droplet, as the cohesive force of the outermost liquid molecules increases, the net force pulling the liquid molecules inward also increases. This leads to high surface tension, resulting in the liquid droplet

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Rojas, Salvador, Katherine S. Riley, and Andres F. Arrieta. "Multistable bioinspired origami with reprogrammable self-folding." Journal of The Royal Society Interface 19, no. 195 (2022). http://dx.doi.org/10.1098/rsif.2022.0426.

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Origami has emerged as a design paradigm to realize morphing structures with rich kinematic and mechanical properties. Biological examples augment the potential design space by suggesting intriguing routes for achieving self-folding from architected materials. We introduce a class of multistable self-folding origami adaptable after fabrication inspired by the earwig wing. This is achieved by designing bilayer creases that display anisotropic shrinkage in response to external stimulation, enabling a mechanism for prestrain adaptation. We establish a bilayer model for stretchable straight and tr

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20

Xie, Hailun, Matt Eames, Anastasia Mylona, Peter Challenor, Zoe De Grussa, and Hywel Davies. "Evaluating UKCP18-Based weather files for overheating assessment using building simulation: A case study for a flat in london." Building Services Engineering Research and Technology, October 13, 2024. http://dx.doi.org/10.1177/01436244241291203.

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Global warming and net zero transition are the two biggest challenges currently faced by the building industry in the UK. While the net zero transition primarily focuses on the problems of energy efficiency and heat decarbonization, the rise of global temperature imposes a significant threat to the health and wellbeing of occupants and the industry is obliged to make buildings climate-resilient by testing their designs using future weather files. To improve the quality of the current weather files, a new project has been commissioned by CIBSE to revisit the data and the methodology employed fo

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21

Kwon, O.-Hyun, Jong-Pil Kim, and Jin-Ho Roh. "A three-dimensional constitutive equation for shape memory polymer composites considering energy dissipation under single loading–unloading condition." Journal of Composite Materials, December 11, 2023. http://dx.doi.org/10.1177/00219983231219838.

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Shape memory polymer composites (SMPCs), composed of shape memory polymers (SMPs) and fabrics, can recover their deformed shapes to initial configurations by changing temperature. The shape recovery energy of the SMPs and the elastic energy of the fabrics are regarded as key points to predict the restored configuration of the SMPCs. In this research, a three-dimensional constitutive equation for SMPCs is newly developed, considering the energy dissipation of fabrics under a single loading–unloading condition. The constitutive equation is derived from Mooney–Rivlin, viscoelastic, and stored str

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Galakhov, Dmitry. "On supersymmetric interface defects, brane parallel transport, order-disorder transition and homological mirror symmetry." Journal of High Energy Physics 2022, no. 10 (2022). http://dx.doi.org/10.1007/jhep10(2022)076.

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Abstract We concentrate on a treatment of a Higgs-Coulomb duality as an absence of manifest phase transition between ordered and disordered phases of 2d $$ \mathcal{N} $$ N = (2, 2) theories. We consider these examples of QFTs in the Schrödinger picture and identify Hilbert spaces of BPS states with morphisms in triangulated categories of D-brane boundary conditions. As a result of Higgs-Coulomb duality D-brane categories on IR vacuum moduli spaces are equivalent, this resembles an analog of homological mirror symmetry. Following construction ideas behind the Gaiotto-Moore-Witten algebra of th

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