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Thematische Bibliographien / Deflecting Structure

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Zeitschriftenartikel
Dissertationen
Bücher
Buchteile
Konferenzberichte
Berichte der Organisationen

Auswahl der wissenschaftlichen Literatur zum Thema „Deflecting Structure“

Autor: Grafiati

Veröffentlicht am 25. Juni 2021

Zuletzt aktualisiert am 29. Juli 2025

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Zeitschriftenartikel zum Thema "Deflecting Structure"

1

Qu, Qinhao, Zhenxiong Luo, Jianzhong Tang, Zhenhui Li, and Xingyuan Wang. "Stress suppression for a cantilever beam with end flexure under heavy load." Journal of Physics: Conference Series 2951, no. 1 (2025): 012040. https://doi.org/10.1088/1742-6596/2951/1/012040.

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Abstract In actual industrial processes, numerous cantilever structures with free ends carry heavy loads weighing several tons. For such structures, fixed supports are often added at the heavy load end, forming a double-supported structure to reduce the large forces and moments imposed on the cantilever structure by the heavy load. However, when the fixed end of the cantilever undergoes deflection due to changes in operating conditions, significant stress is generated in the structure, severely affecting its mechanical lifespan and safety. A follow-up support scheme needs to be designed to imp

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Quan, Hui, Yongkang Wu, Ying Guo, Kai Song, and Yanan Li. "Multiobjective Hydraulic Design and Performance Analysis of a Vortex Pump Based on Orthogonal Tests." Shock and Vibration 2021 (March 29, 2021): 1–14. http://dx.doi.org/10.1155/2021/6687856.

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We design optimization on the overall blade structure of a vortex pump conducted by using the orthogonal test method to clarify the matching relationship of impeller and casing structures and then improve the hydraulic performance of the vortex pump. Based on two different impeller structures of forward-deflecting (denoted as R1 − F2) and backward-deflecting (denoted as F1 − R2), key parameters describing the impeller structure are calculated through optimization for the objective function of hydraulic efficiency by means of orthogonal tests and computational fluid dynamic simulations. Optimiz

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Volobuev, E. N., A. A. Zavadtsev, D. A. Zavadtsev, et al. "Transverse deflecting structure XFEL TDS INJ." Journal of Physics: Conference Series 747 (September 2016): 012083. http://dx.doi.org/10.1088/1742-6596/747/1/012083.

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Shi, Shao Yan, Yi Jiang, and Xiao Tong Dong. "Deflecting Features of Gas from Double-Faced Deflector and Structure Optimization of Deflector." Applied Mechanics and Materials 387 (August 2013): 314–18. http://dx.doi.org/10.4028/www.scientific.net/amm.387.314.

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This paper uses three-dimensional dynamical simulation of gas jet to demonstrate basic deflecting features of the double-faced deflector, during the launch process of the land-based missile with the vehicle-mounted vertically thermal launch. The calculation shows that the deflection of the gas flow is good, reducing knock-on effect and ablative effect on launch device. But wheels of the launch vehicle are still under visible influent from the gas flow. The paper optimizes the double-faced deflector and compares different suggestions in order to find a better deflection.

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Stankovsky, A. V., S. V. Polenga, Ye A. Strigova, A. D. Nemshon, E. R. Gafarov, and Yu P. Salomatov. "Synthesis of Phase-Correcting Elements Based on Band-Pass Filter and Their Application in Transmitarray Antenna." Journal of the Russian Universities. Radioelectronics 28, no. 2 (2025): 20–32. https://doi.org/10.32603/1993-8985-2025-28-2-20-32.

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Introduction. This paper presents a procedure for synthesis of phase-correcting elements (PCE) based on band-pass filter using specialized software developed for these purposes. The amplitude response of the synthesized PCE and LC-filters based on lumped elements is compared. The obtained structures can be applied in deflecting and focusing transmitarrays and in low-profile scanning antenna systems of ground terminals of satellite communication systems, which is particularly significant for the advancement of satellite communications used by medium- and low-orbit spacecrafts.Aim. Software deve

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Bolgov, R. O., M. A. Gusarova, D. S. Kamenshchikov, M. V. Lalayan, A. Yu Smirnov, and N. P. Sobenin. "Higher order modes in an RF deflecting structure." Instruments and Experimental Techniques 54, no. 6 (2011): 813–22. http://dx.doi.org/10.1134/s0020441211060030.

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7

Staras, S. "Simulation and properties of the twined helical deflecting structure." IEEE Transactions on Electron Devices 49, no. 10 (2002): 1826–30. http://dx.doi.org/10.1109/ted.2002.803643.

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8

Jia, Ya Lei, Zhong He Han, Fu You Li, Ya Kai Bai, and Ji Xuan Wang. "Influence of Flap Deflection Angle on Wind Turbine Airfoil with Trailing Edge Flaps." Advanced Materials Research 977 (June 2014): 222–27. http://dx.doi.org/10.4028/www.scientific.net/amr.977.222.

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To improve the ability of capturing the wind energy of wind turbine and shorten the design period is of great importance to designing wind turbine blade. The article established S809 airfoil model with trailing edge flaps, The gap of the frontal subject and trailing edge flap adopt uniform gap structure, this structure will reduce the influence of the gap on aerodynamic characteristics.Using the k-ω Two equation turbulence model , the article calculated aerodynamic performance of S809 with 10% chord length trailing edge flaps under different deflecting angles. Results show that gap between the

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Stankovsky, A. V., S. V. Polenga, Ye A. Strigova, and Yu P. Salomatov. "Antenna Systems with Wide-Angle Mechanoelectrical Beam Steering." Journal of the Russian Universities. Radioelectronics 26, no. 5 (2023): 50–62. http://dx.doi.org/10.32603/1993-8985-2023-26-5-50-62.

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Introduction. The active development of satellite communication networks determines the need for new antenna systems for ground terminals. The Sphere Federal program implies the commissioning of new satellite constellations for communication and remote sensing of the Earth. The Skif (providing broadband Internet access) and Express-RV (providing the Internet and communications for Arctic) satellite constellations are not geostationary, thus requiring constant satellite tracking even for stationary terminals. Deflecting structures operating on the principle of quasi-optical beam control make it

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Piekarczyk, Adam. "Reinforced and unreinforced AAC masonry walls supported on deflecting structure." ce/papers 2, no. 4 (2018): 377–87. http://dx.doi.org/10.1002/cepa.861.

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Dissertationen zum Thema "Deflecting Structure"

1

Moss, Andrew M. "Analysis of a Gravity Hinge System for Wind Turbines." Cleveland State University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=csu1624479290234317.

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Cho, Myung Kyu. "Structural deflections and optical performances of lightweight mirrors." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184875.

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A parametric design study of light weight mirror shapes with various support conditions was performed utilizing the finite element program NASTRAN. Improvements in the mirror performance were made based on the following design criteria: (1) minimization of the optical surface wavefront variations, (2) minimization of the self-weight directly related to cost of manufacturing, and (3) optimal location of support points. A pre-processor to automatically generate a finite element model for each mirror geometry was developed in order to obtain the structural deformations systematically. Additionall

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Chakraborty, (Sengupta) Suparna. "Application of "constant deflection contour" method to problems of dynamic response of structures." Thesis, University of North Bengal, 2002. http://hdl.handle.net/123456789/2736.

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Qin, Jianfeng. "Predicting Flexible Pavement Structural Response Using Falling Weight Deflectometer Deflections." Ohio University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1275612839.

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Le, Ngoc Thach. "Structural damage identification using static and modal flexibility-based deflections." Thesis, Queensland University of Technology, 2019. https://eprints.qut.edu.au/133428/2/Ngoc_Le_Thesis.pdf.

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This research contributes towards the safe and efficient operation of our infrastructure which are vulnerable to progressive deterioration and damage. Innovative damage detection (DD) methods are proposed herein to detect such damage at the onset to enable appropriate retrofitting and prevent structural failure. These DD methods overcome current difficulties in using popular DD methods based on changes in static and/or modal flexibility-based deflections. First, an innovative deflection-based method is proposed based on explicit relationships between static deflection change and damage charact

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Nayyerloo, Mostafa. "Real-time Structural Health Monitoring of Nonlinear Hysteretic Structures." Thesis, University of Canterbury. Department of Mechanical Engineering, 2011. http://hdl.handle.net/10092/6581.

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The great social and economic impact of earthquakes has made necessary the development of novel structural health monitoring (SHM) solutions for increasing the level of structural safety and assessment. SHM is the process of comparing the current state of a structure’s condition relative to a healthy baseline state to detect the existence, location, and degree of likely damage during or after a damaging input, such as an earthquake. Many SHM algorithms have been proposed in the literature. However, a large majority of these algorithms cannot be implemented in real time. Therefore, their result

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Manoharan, Sittampalam R. "Development of Structural Deterioration Models for Flexible Pavements in Queensland, Australia." Thesis, Griffith University, 2020. http://hdl.handle.net/10072/398093.

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The principal aim of this research study was to improve the reliability of structural performance prediction for pavement structural condition. The intention of this research was to provide accurate information upon which decisions can be made, regarding when and how a particular road network needs to be rehabilitated, and where the associated budget should be allocated. The project focused on developing structural deterioration models for flexible pavements for the Queensland road network using Traffic Speed Deflectometer (TSD) data collected over a five-years period by the Department of Tran

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Rockstroh, Benjamin Andreas. "An investigation into the effects of early propping removal on the deflection of reinforced concrete beams." Master's thesis, University of Cape Town, 2018. http://hdl.handle.net/11427/29285.

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In today’s fast paced construction industry, there is an ever present need to increase productivity and to complete projects as quickly as possible. Reinforced concrete is a popular and widely used construction material. However it has the unfortunate drawback in that the concrete requires time to set and gain sufficient strength before loads may be applied and the formwork and props can be removed. It is therefore desirable to keep propping times to a minimum. If the propping is removed too early, there is a risk of the member deflecting excessively and exceeding the maximum allowable limits,

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Chu, Kwong-Yiu. "A study of the deflection and strength of partially prestressed concrete beams with unbonded tendons." Thesis, University of Leeds, 1985. http://etheses.whiterose.ac.uk/184/.

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Fifteen beams with-unbonded tendons consisting of I and rectangular sections with different amounts of prestressed and non-prestressed reinforcement, were tested under short-term and sustained loading and a combination of sustained loading with intermittent short-term cyclic loading(combined loading). Two additional ordinary reinforced concrete beams were tested under combined loading for comparison purposes. Results indicated that a noticeable amount of non-recoverable residual deflection occurred due to the effect of cyclic load. The cause was believed to be non-recoverable creep strain and

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Abayakoon, Sarath Bandara Samarasinghe. "Large deflection elastic-plastic analysis of plate structures by the finite strip method." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/26946.

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A solution procedure based on the finite strip method is presented herein, for the analysis of plate systems exhibiting geometric and material non-linearities. Special emphasis is given to the particular problem of rectangular plates with stiffeners running in a direction parallel to one side of the plate. The finite strip method is selected for the analysis as the geometry of the problem is well suited for the application of this method and also as the problem is too complicated to solve analytically. Large deflection effects are included in the present study, by taking first, order non-line

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Bücher zum Thema "Deflecting Structure"

1

M, Sabnis Gajanan, American Concrete Institute Convention, and Symposium on Deflections of Structures (3rd : 1984 : Phoenix, Ariz.), eds. Deflections of concrete structures. American Concrete Institute, 1985.

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2

Ji, Tianjian. Structural Design Against Deflection. CRC Press, 2020. http://dx.doi.org/10.1201/9780429465314.

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Ellis, John S. Deflections by Pasternak's theorem. Dept. of Civil Engineering, Royal Military College, 1985.

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4

Hayden, Griffin O., Johnson Eric R, and United States. National Aeronautics and Space Administration., eds. Static and dynamic large deflection flexural response of graphite-epoxy beams. Virginia Tech Center for Composite Materials and Structures, Virginia Polytechnic Institute and State University, 1987.

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Hayden, Griffin O., Johnson Eric R, and United States. National Aeronautics and Space Administration. Scientific and Technical Information Division., eds. Static and dynamic large deflection flexural response of graphite-epoxy beams. National Aeronautics and Space Administration, Scientific and Technical Information Division, 1988.

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6

Wang, C. M. Shooting-optimization technique for large deflection analysis of structural members. University of Queensland, Dept. of Civil Engineering, 1990.

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Wang, C. M. Shooting-optimization technique for large deflection analysis of structural members. Department of Civil Engineering, The University of Queensland, 1990.

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8

Center, Langley Research, ed. Large deflections of a cantilever beam under arbitrarily directed tip load. National Aeronautics and Space Administration, Langley Research Center, 1985.

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9

Waheed, Uddin, Texas. State Dept. of Highways and Public Transportation., United States. Federal Highway Administration., and University of Texas at Austin. Center for Transportation Research., eds. A Structural evaluation methodology for pavements based on dynamic deflections. The Center, 1985.

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Center, Langley Research, ed. Some solutions for the large deflections of uniformly loaded circular membranes. National Aeronautics and Space Administration, Langley Research Center, 1997.

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Buchteile zum Thema "Deflecting Structure"

1

Seward, Derek. "Deflection." In Understanding Structures. Macmillan Education UK, 1998. http://dx.doi.org/10.1007/978-1-349-14809-7_13.

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Seward, Derek. "Deflection." In Understanding Structures. Macmillan Education UK, 1994. http://dx.doi.org/10.1007/978-1-349-12083-3_13.

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3

Silvius, Ray. "China's Belt and Road Initiative as Nascent World Order Structure and Concept? Between Sino-Centering and Sino-Deflecting." In China's Big Power Ambition under Xi Jinping. Routledge, 2021. http://dx.doi.org/10.4324/9781003198871-3.

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Ji, Tianjian. "Introduction." In Structural Design Against Deflection. CRC Press, 2020. http://dx.doi.org/10.1201/9780429465314-1.

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Ji, Tianjian. "Deflections and Internal Forces." In Structural Design Against Deflection. CRC Press, 2020. http://dx.doi.org/10.1201/9780429465314-2.

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Ji, Tianjian. "More Direct Internal Force Paths." In Structural Design Against Deflection. CRC Press, 2020. http://dx.doi.org/10.1201/9780429465314-3.

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Ji, Tianjian. "Smaller Internal Forces." In Structural Design Against Deflection. CRC Press, 2020. http://dx.doi.org/10.1201/9780429465314-4.

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Ji, Tianjian. "More Uniform Distribution of Internal Forces." In Structural Design Against Deflection. CRC Press, 2020. http://dx.doi.org/10.1201/9780429465314-5.

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Ji, Tianjian. "Converting More Bending Moments Into Axial Forces." In Structural Design Against Deflection. CRC Press, 2020. http://dx.doi.org/10.1201/9780429465314-6.

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Ji, Tianjian. "Concluding Remarks." In Structural Design Against Deflection. CRC Press, 2020. http://dx.doi.org/10.1201/9780429465314-7.

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Konferenzberichte zum Thema "Deflecting Structure"

1

Yang, Xuan, Aswathi Sudhir, Atanu Halder, and Moble Benedict. "Aeroelastic Analysis for Highly Flexible Flapping Wing in Hover." In Vertical Flight Society 73rd Annual Forum & Technology Display. The Vertical Flight Society, 2017. http://dx.doi.org/10.4050/f-0073-2017-12114.

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Aeromechanics of a flexible flapping wing is a complex nonlinear fluid-structure interaction problem and therefore, cannot be analyzed using conventional linear aeroelasticity methods. This paper presents a stand-alone coupled aeroelastic framework for highly flexible flapping wings in hover for Micro Aerial Vehicle (MAVs) application. A realistic hover-capable flapping-wing MAV utilizes highly flexible wings operating at high frequencies/amplitudes, which causes extreme wing deflections and highly unsteady, vortical flows. The strong fluid-structure coupling and the complicated flow physics m

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Rashidi, Majid, J. R. Kadambi, and Scott Suren. "Design of a Rooftop Wind Harnessing System With Smart Wind Deflecting Structure." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-65951.

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This work presents a novel design for a rooftop wind tower system; the system is primarily intended for areas of low natural wind speeds. The relatively low natural wind is increased by a factor of about 1.6 times via a wind deflecting structure to reach the cut-in speed of typical rooftop wind turbines which is approximately 3 m/s. The system additionally responds to relatively high wind velocity, above 20 m/s, in a way that eliminates its wind speed amplification attributes; this will protect the wind turbines against exposure to high wind speeds that could be harmful to the turbines and to

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Rohrs, Michael, Christopher Gerth, and Holger Schlarb. "Time resolved phase space tomography at flash using a transverse deflecting RF-structure." In 2007 IEEE Particle Accelerator Conference. IEEE, 2007. http://dx.doi.org/10.1109/pac.2007.4440133.

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Rashidi, Majid, J. R. Kadambi, and Asuquo Ebiana. "Performance of a Rooftop Wind Turbine System Having a Wind Deflecting Structure, Experimental Results." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-50143.

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This work presents the results of an experimental work on a novel design for wind tower system. The system is intended for areas of low wind speeds. The wind tower consists of four rooftop turbines mounted alongside a cylindrical structure that acts as a Wind Deflecting Structure (WDS). This arrangement results in lowering of the cut-in wind speed for the turbine; the system allows the turbine rotors to operate in the areas that have normally low wind speeds, as low as 3 m/s. The nameplate rating of each of the turbines is 1.65. The four-turbine system was installed on the rooftop of a five st

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Rashidi, Majid, Jaikrishnan R. Kadambi, and Renjie Ke. "Wind Energy Harnessing System for Low and High Wind Speeds." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-11995.

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Abstract This work presents the design and analysis of a novel wind energy harnessing system that makes use of wind defecting structures to increase the ambient wind speed at geographic locations with relatively low wind speed. The system however reacts to highspeed wind conditions by altering the profile of the wind defecting structure in order to eliminate wind speed amplification attribute of the system, thereby protecting the wind turbine assembly at high speed wind conditions. Although increasing the wind speed is advantageous at geographic locations that the wind speed is typically low;

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Ameri, Ali A., and Majid Rashidi. "Analysis of a Concept for a Low Wind Speed Tolerant Axial Wind Turbine." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-46102.

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In this paper, the authors analyze a design for a wind tower intended for areas of low wind speeds. The wind tower consists of a combination of several rooftop size turbines arranged alongside a cylindrical structure that acts as a Wind Deflecting Structure (WDS). The WDS amplifies the effective wind speed thus allowing the turbine rotors to operate under lower ambient wind speeds. Analyses were performed using simple models as well as more sophisticated CFD methods employing Steady and Unsteady Reynolds Averaged Navier-Stokes methodology. The effect of the wind amplification was shown on a co

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Rashidi, Majid, Jaikrishnan R. Kadambi, and David Kerze. "Wind Flow Regime Around a 3 Dimensional Helical Structure." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-87753.

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A three dimensional heliacal structure is modeled as a wind deflecting structure in this work. The purpose of the structure is to increase the natural wind speed and direct the follow of the wind toward two columns of horizontal-axis rooftop-size wind turbines that are installed in the grooves of the helical structure, diametrically opposed to each other. Computational Fluid Dynamics (CFD) analyses were conducted to determine the influence of the helical structure on the wind speed reaching the turbines. A wind speed amplification coefficient was determined for a helical structure of 6.7 m out

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Shende, Amitkumar, Manoj Verma, T. K. Vashist, and Joseph Mathew. "Simulations of 3D Separation in the Diffuser." In ASME 2012 Gas Turbine India Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gtindia2012-9555.

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Large eddy simulations of an asymmetric diffuser characterized by complex 3-D flow separation for which RANS models provide qualitatively wrong predictions have been performed.. An incompressible, turbulent, fully-developed flow in a rectangular duct (aspect ratio 1:3.33) expands into this diffuser. Two such diffusers were constructed by deflecting a pair of adjacent walls for the experiments in Cherry et al. [1, 2] (2006, 2008) and Buice, C. U. and Eaton, J. K. [3]. Most of our simulations consider Diffuser 1 with wall deflection angles 11.3° and 2.56°. In the experiments, flow begins to sepa

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Oh, Dong Seok, Wang Kee In, and Tae Hyun Chun. "Structure of Turbulent Flow in Subchannel of Rod Bundle Downstream of Spacer Grid With Hybrid Flow Mixing Device." In 10th International Conference on Nuclear Engineering. ASMEDC, 2002. http://dx.doi.org/10.1115/icone10-22264.

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An experiment was performed in a wind tunnel to investigate the flow structure in a rod bundle with a hybrid vane grid. The hybrid vane is a flow-mixing device, which consists of two pairs of primary and secondary vanes in a cell. The test section is a rectangular channel (300 mm × 300 mm × 2400 mm) including 3 × 3 rod (75 mm diameter) array with a spacer grid. The pitch to diameter ratio of the rod array is 1.33. The flow structures downstream the grid are measured at Reynolds number of 1.2 × 105 for 35-degree deflecting angle of the hybrid flow-mixing vane. The data are obtained for the dist

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BANK, LAWRENCE, and THOMAS MELEHAN. "Shear deflection in multicelled thin-walled orthotropic composite beams." In 30th Structures, Structural Dynamics and Materials Conference. American Institute of Aeronautics and Astronautics, 1989. http://dx.doi.org/10.2514/6.1989-1361.

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Berichte der Organisationen zum Thema "Deflecting Structure"

1

Inagaki, Shigemi. Deflecting modes of the side-coupled cavity structure. Office of Scientific and Technical Information (OSTI), 1990. http://dx.doi.org/10.2172/6288861.

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Emma, Paul J. A Transverse RF Deflecting Structure for Bunch Length and Phase Space Diagnostics. Office of Scientific and Technical Information (OSTI), 2001. http://dx.doi.org/10.2172/784939.

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Emma, Paul J. Bunch Length Measurements Using a Transverse RF Deflecting Structure in the SLAC Linac. Office of Scientific and Technical Information (OSTI), 2002. http://dx.doi.org/10.2172/799088.

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Shin, Boonam, Nitin Tiwari, Peter J. Becker, and Antonio Bobet. Improved Light Weight Deflectometer Test (LWD) and Analysis. Purdue University, 2025. https://doi.org/10.5703/1288284317813.

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This study focused on improving light weight deflectometer (LWD) testing protocols and understanding material and equipment variability. The Indiana Department of Transportation (INDOT) adopted the LWD test for its efficiency and effectiveness in measuring soil stiffness, a crucial parameter for pavement structural layers. However, challenges remain for implementing LWD testing, particularly in small construction areas. There are also challenges with establishing standardized performance-related criteria for various subgrade treatments. To address these obstacles, this research aimed to develo

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Wands, R. Summary of Deflections from Fully Assembled EC Structure Finite Element Model. Office of Scientific and Technical Information (OSTI), 1987. http://dx.doi.org/10.2172/1030721.

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Turner, R. D. PR-255-9616-R01 Fibre Optic Technology-Based Pipeline Structural Integrity Monitoring System. Pipeline Research Council International, Inc. (PRCI), 1996. http://dx.doi.org/10.55274/r0012147.

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Increasingly, pipelines in unstable terrain are being monitored as a supplement to design stage integrity measures. The quantities monitored most often are strains and displacements. This report reviews an ongoing development program of a distributed fibre optic technology-based pipeline strain monitoring system. The basis of a system and its components are described. Data from large-scale laboratory pipeline deflection tests are presented. Also presented are the results from a state-of-the-technology review. Finally, future development issues for the practical implementation of such a system

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Edwards, Mervyn, Brian Robinson, Mike Stewart, James Hobbs, and Tyler London. PPR2027 Research on Performance Test Procedures for Petroleum Road Fuel Tankers. TRL, 2024. http://dx.doi.org/10.58446/wrwu3932.

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The aim of the research reported was to develop ‘performance-based’ finite element modelling approaches and appropriate physical test procedures to approve petroleum road fuel tankers with novel designs that otherwise would not satisfy the current ‘design-based' requirements, i.e. to provide an alternative means of approval that gives more freedom to innovate while maintaining an equivalent (the same or a better) level of safety. The main conclusion of this research regarding the development of performance-based requirements for rollover safety is that the deflections and likelihood of major l

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Floyd, Webster, and Andrew Ward. Mobile Runway Edge Sheave Anchor criteria in asphalt concrete pavement. Engineer Research and Development Center (U.S.), 2025. https://doi.org/10.21079/11681/49724.

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The Mobile Runway Edge Sheave (MRES) is used in conjunction with the Mobile Aircraft Arresting System (MAAS) for setback aircraft arresting system (AAS) installations in expedient or temporary situations. There are existing criteria and tactics, techniques, and procedures (TTPs) for MRES installations on portland cement concrete (PCC) pavement and soil, but these criteria have not been developed for asphalt concrete (AC) pavements. The US Air Force Civil Engineer Center (AFCEC) tasked the US Army Engineer Research and Development Center (ERDC) to develop anchor criteria for the MRES in AC pave

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Groeneveld, Andrew, and C. Crane. Advanced cementitious materials for blast protection. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/46893.

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Advanced cementitious materials, commonly referred to as ultra-high performance concretes (UHPCs), are developing rapidly and show promise for civil infrastructure and protective construction applications. Structures exposed to blasts experience strain rates on the order of 102 s-1 or more. While a great deal of research has been published on the durability and the static properties of UHPC, there is less information on its dynamic properties. The purpose of this report is to (1) compile existing dynamic property data—including compressive strength, tensile strength, elastic modulus, and energ

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STUDY ON FLEXURAL CAPACITY OF PROFILED STEEL SHEET - POLYURETHANE SANDWICH SLABS. The Hong Kong Institute of Steel Construction, 2024. http://dx.doi.org/10.18057/ijasc.2024.20.1.6.

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Widely employed in enveloped structures, the metal-faced sandwich panel boasts thermal insulation, noise abatement, lightweight, and remarkable assembly efficiency. In this paper, a new type of profiled steel sheet and polyurethane sandwich slab (PSSPSS) was proposed. Through static load tests and numerical simulations, the flexural properties of the PSSPSS were studied, and the influence of individual geometric parameters on the flexural capacity of the structure was evaluated. The results of this analysis led to the derivation of the calculation formulas for the deflection and flexural beari

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