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Journal articles on the topic 'Flange Coupling'

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1

Zahariea, Danut. "Structural Analysis of a Flange Coupling without Clearance." Applied Mechanics and Materials 371 (August 2013): 652–56. http://dx.doi.org/10.4028/www.scientific.net/amm.371.652.

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In this paper the flange coupling without clearance will be analyzed using CATIA Generative Structural Analysis workbench. The structural analysis procedure will be presented: creating the 3D model, configuring the mesh, applying the restraints, applying the loads (torque), applying the interaction conditions (driving flange-bolts and nuts, bolts and nuts-driven flange), running the numerical analysis and results visualization. Two different systems will be analyzed: the first is a six bolts flange coupling working in nominal conditions, the second is a five bolts flange coupling working in so
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2

Somvir, Singh, and Bhushan Bharat. "FINITE ELEMENT ANALYSIS AND WEIGHT REDUCTION OF FLANGE COUPLING USING CAE TOOLS." International Journal of Advances In Scientific Research and Engineering (IJASRE) 3, no. 4 (2017): 197–202. https://doi.org/10.5281/zenodo.805883.

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Coupling is a mechanical component used for transmitting power from one shaft to another shaft rotating at particular RPM at a long distance. In flange coupling two shafts are connected together at their ends with the help of flanges for transmitting power. The rigid flange coupling is specially designed and developed for horizontal shaft mounted gear unit applications. Today every manufacturing industry has a challenge to increase the strength to weight ratio of the component. In the project our objective is to decrease the weight of flange coupling. For this, composite material aluminium sil
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patil and patil. "NONLINEAR FINITE ELEMENT ANALYSIS OF GASKETED FLANGE JOINT UNDER COMBINED LOADING CONDITIONS." JournalNX - A Multidisciplinary Peer Reviewed Journal 3, no. 3 (2017): 103–7. https://doi.org/10.5281/zenodo.1463633.

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 Gasketed-flanged pipe joints have been widely used in industries for connecting pressure vessels and pipes. Joint strength and sealing strength are most important factors in the bolted flange joint. Most of the research work focused on the structural strength of the flange joint under internal pressure only. The research work does not consider the nonlinear behavior of gasket used in the flange coupling. The leakage and distortion of gaskets in bolted flange joints at high temperature is a well recognized problem and makes the problem more complex under combined application of internal p
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4

Molchanov, S. Yu, A. A. Titenko, I. Sh Bahteev, I. V. Kukushkin, and V. M. Muravev. "Waveguide adapter with contactless flange for operation in the millimeter wavelength range." Izmeritel`naya Tekhnika 73, no. 8 (2024): 48–55. http://dx.doi.org/10.32446/0368-1025it.2024-8-48-55.

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Methods of increasing accuracy of measurement results of S-parameters of waveguide devices operating in the upper part of extremely high frequency range are reviewed. It is shown that accuracy and reliability of measurements of S-parameters of waveguide devices depend on the quality of contact between waveguide flanges: leakage of electromagnetic radiation through gaps poses a significant problem and can lead to unreliable results in measuring insertion loss and voltage standing wave ratio. Therefore, particular attention is paid to quality of contact between the measurement system and the dev
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5

Lee, F. O. Y., I. M. Gardner, and G. Thompson. "Maintainability Aspects of Process Plant Pipe Joints." Proceedings of the Institution of Mechanical Engineers, Part A: Power and Process Engineering 201, no. 1 (1987): 69–76. http://dx.doi.org/10.1243/pime_proc_1987_201_008_02.

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The paper is concerned with the maintainability aspects of pipe joints, the most common type of which is the bolted flange. An appreciation of pipe joint maintenance practice is obtained from two plant studies and a review of alternatives to flanges is then made with respect to these practical observations. Guidelines are given to help select the most appropriate coupling for an application. In the absence of a generally acceptable replacement coupling, a novel bolt design for use with standard flanges is proposed to alleviate some of the maintenance difficulties experienced.
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Wang, Quan Xian, Wei Tang, and Ning Jun Ye. "The Design and FEM Analysis of End-Face Tooth of Coupling Flange." Applied Mechanics and Materials 86 (August 2011): 268–72. http://dx.doi.org/10.4028/www.scientific.net/amm.86.268.

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Proposed a design method of the geometrical dimensions of cone-shape end-face teeth of coupling flange, established an intensity check equation for end-face teeth, and inspected by the finite-element analysis. This method can be used for the general series design of end-face teeth of coupling flange between φ500~φ1200, it also can be used as a reference for design of some small specifications.
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7

Härtel, H., C. Ulrich, M. Fiedler, M. Kästner, and B. Schlecht. "Fatigue strength assessment of preloaded cross-toothed flange connections based on the FKM guidelines." Journal of Physics: Conference Series 2692, no. 1 (2024): 012035. http://dx.doi.org/10.1088/1742-6596/2692/1/012035.

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Abstract Cross-toothed flange connections are used in drivetrains for form-fit coupling of shafts. They belong to the group of non-shiftable couplings. Compared to frictional connections, tooth flange connections can transmit significantly higher torques in the same space. In contrast to other tooth couplings, the crossed tooth flange coupling investigated here is characterized by a particularly complex load distribution. The preload force, which is necessary to transmit operational loads, is generated by tensioning bolts, which can be located centrally or decentralized. Thus, the stress condi
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8

Weikle, Robert M., H. Li, A. Arsenovic, et al. "Micromachined Interfaces for Metrology and Packaging Applications in the Submillimeter-Wave Band." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2017, DPC (2017): 1–36. http://dx.doi.org/10.4071/2017dpc-tha3_presentation2.

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The continued emergence of new terahertz devices has created a need for improved approaches to packaging, integration, and measurement tools for diagnostics and characterization in this portion of the spectrum. Rectangular waveguide has for many years been the primary transmission medium for terahertz and submillimeter-wave systems operating from 300 GHz to 1 THz, with the UG-387 flange the most common interface for mating waveguide components over this frequency range. Alignment of UG-387 flanges is accomplished with pins and alignment holes that are placed around the flange perimeter and, un
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9

Nurprasetio, Ignatius Pulung, Bentang Arief Budiman, and Farid Triawan. "Failure Investigation of Plastic Shredding Machine’s Flange Coupling Based on Mechanical Analysis." Indonesian Journal of Science and Technology 2, no. 2 (2017): 124. http://dx.doi.org/10.17509/ijost.v2i2.7988.

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This paper presented the investigation of failure mechanism of plastic shredding machine’s flange coupling which is made of cast steel. The machine unexpectedly stalled a few minutes after High-Density Polyethylene (HDPE) plastic bottles were fed into the machine. It was discovered afterward that the flange broke with the large crack surface. Finite element analysis (FEA) was performed to find the position and value of the critical stresses in the flange during operating condition. Subsequently, hardness test was conducted on the flange body to determine the Brinell hardness which was then con
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10

Cattari, Serena, Sara Alfano, and Sergio Lagomarsino. "A Practice-Oriented Proposal to Consider the Flange Effect in Equivalent Frame Modeling of Masonry Buildings." Buildings 13, no. 2 (2023): 462. http://dx.doi.org/10.3390/buildings13020462.

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This paper focuses on the so-called “flange effect” in unreinforced masonry buildings when the connection among walls is good, thus forming a 3D assembly of intersecting piers (with L-, C-, T-, or I-shaped cross-sections). Given the direction of the horizontal seismic action, the presence of such flanges (the piers loaded out-of-plane) can influence the response of the in-plane loaded pier (the web) in terms of failure modes, maximum strength, and displacement capacity. Specific rules are proposed in codes to evaluate the effective width of the flange, for the in-plane verification of a single
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11

Cissé, Cheikh, Wael Zaki, and Tarak Ben Zineb. "Numerical simulation of the behavior of steel T-stubs connected by Fe-based shape memory alloy bolts." Journal of Intelligent Material Systems and Structures 29, no. 16 (2018): 3284–92. http://dx.doi.org/10.1177/1045389x18781263.

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The article focuses on the numerical simulation of the thermomechanical behavior of steel T-stubs connected by iron-based shape memory alloys bolts. The three-dimensional macroscopic model used in this work was previously developed by the authors considering different thermomechanical properties between austenite and martensite, and coupling between phase transformation and plasticity. The model is implemented in a UMAT code using an implicit time-discrete integration scheme that follows a “multisurface plasticity”-like approach. The numerical results show that the shape memory effect can be u
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12

Li, Yinghui, Huanjun Jiang, and T. Y. Yang. "Damage Deformation of Flexure-Yielding Steel-Reinforced Concrete Coupling Beams: Experimental and Numerical Investigation." Advances in Civil Engineering 2019 (June 13, 2019): 1–15. http://dx.doi.org/10.1155/2019/7071243.

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SRC coupling beams offer many significant advantages, including the reduction in section depth, reduced congestion at the wall boundary region, improved degree of coupling for a given beam depth, and improved deformation capacity. In this paper, 7 half-scale flexure-yielding SRC coupling beams designed according to Chinese approach have been tested under cyclic loads. Detailed parameters such as aspect ratios, steel reinforcement ratios, and steel flange-web ratios were systematically studied, and the damage behavior of SRC coupling beams were presented in this paper. The test results show tha
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13

Kumar, Manoj, and Nippu Tayeng. "Simulation and Analysis of Hot Forging Process for Automotive Coupling Flange." International Journal of Scientific Engineering and Research 5, no. 8 (2017): 116–19. https://doi.org/10.70729/ijser171838.

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14

Zhu, Guo Ming, Yong Lin Kang, and Guang Ting Ma. "Simulation of Residual Stress in Hot Rolled Large Size H-Beams." Materials Science Forum 704-705 (December 2011): 1370–78. http://dx.doi.org/10.4028/www.scientific.net/msf.704-705.1370.

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The distribution of residual stress in hot rolled large size H-beams is complex due to the uneven temperature distribution on the final rolling cross-sections. In this paper, 3D simulation analysis is conducted on the residual stress field of cooled large H-beams and the transformation of residual stress field during the flange cutting based on the calculations of thermo-mechanical coupling whole rolling process. There are tensile stress in the flange and web connection areas and compressive stress in web. During the flange cutting process, tensile stress increases suddenly when the kerf arriv
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15

Praveen, Kumar Sonwane Asst. Prof. Prateek Yadav. "STRUCTURAL ANALYSIS OF RIGID FLANGE COUPLING BY FINITE ELEMENT METHOD." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 7 (2017): 164–70. https://doi.org/10.5281/zenodo.839155.

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A coupling is a device which is used to connect two shafts for power transmission. A shaft coupling consist a rigid or flexible joint. Rigid joint holds both the shaft with perfectly alignment whereas flexible joint allows angular displacement between the shaft axis. This project shows the structural analysis of flange coupling by using ANSYS software version 16. For this analysis a theoretical solution is taken from “DESIGN OF MACHINE ELEMENTS by VB BHANDARI” 3<sup>rd</sup> edition page no 366.
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16

Li, Miaomiao, Yinghao Zhao, Rupeng Zhu, and Pingjun Li. "Study of the Stiffness Characteristics of Waist Type Laminated Membrane Coupling Considering Flange Elasticity." Applied Sciences 10, no. 20 (2020): 7151. http://dx.doi.org/10.3390/app10207151.

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Studies show that the systematic study of the stiffness characteristics of the laminated membrane coupling is helpful to analyze the vibration status of the shaft system deeply and accurately. Moreover, such an investigation can provide a reliable guarantee for the safe operation of the power plant. Therefore, establishing an accurate expression for the stiffness and analyzing its characteristics have great significance. In the present study, a finite element model of the waist type laminated membrane coupling is established which considers the influence of the contact between laminations. In
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17

Wangbao, Zhou, Jiang Lizhong, Kang Juntao, and Bao Minxi. "Distortional Buckling Analysis of Steel-Concrete Composite Girders in Negative Moment Area." Mathematical Problems in Engineering 2014 (2014): 1–10. http://dx.doi.org/10.1155/2014/635617.

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Distortional buckling is one of the most important buckling modes of the steel-concrete composite girder under negative moment. In this study, the equivalent lateral and torsional restraints of the bottom flange of a steel-concrete composite girder under negative moments due to variable axial forces are thoroughly investigated. The results show that there is a coupling effect between the applied forces and the lateral and torsional restraint of the bottom flange. Based on the calculation formula of lateral and torsional restraints, the critical buckling stress of I-steel-concrete composite gir
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18

Wang, Wenjun, Lin Li, Yu Fan, and Zhou Jiang. "Piezoelectric Transducers for Structural Health Monitoring of Joint Structures in Cylinders: A Wave-Based Design Approach." Sensors 20, no. 3 (2020): 601. http://dx.doi.org/10.3390/s20030601.

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Joint structures, such as riveting, hinges, and flanges, are widely used in complex mechanical systems. A small unexpected change of a joint can lead to complicated wave-scattering in its connected waveguides. The conversion between wave modes can be used to quantify the variation of the connection status of joints. This gives rise to the challenge of exciting and sensing only one specific wave mode in practice. In this paper, transmitted wave amplitudes of a flange joint are first calculated by the wave finite element method (WFEM) to study the quantitative relationship between the local stif
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19

Mongiardo, M., and C. Tomassoni. "Mutual coupling evaluation for arrays of flange-mounted elliptical waveguides." IEEE Transactions on Antennas and Propagation 49, no. 5 (2001): 763–70. http://dx.doi.org/10.1109/8.929631.

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20

Davtyan, A., H. Isunts, V. Dekhtiarov, and V. Avagyan. "Experimental fine-advancement of vacuum brazing processes for fabrication of S-Band RF coupling cells." Journal of Instrumentation 18, no. 09 (2023): P09011. http://dx.doi.org/10.1088/1748-0221/18/09/p09011.

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Abstract The technology of high vacuum brazing for fabrication of S-Band RF coupling cell unit is given. The brazing in high vacuum conditions provides a vacuum-tight and more precise connection with the use of special high-purity fillers. Based on the material and design of the part, as well as the shape of the filler, it is necessary to develop filler channels and gaps that will be of the most optimal shape and size. High-purity silver-copper alloys of the BV Ag-30, BV Ag-8, and BV Ag-29 brands were used as fillers. Rectangular flanges for brazing with waveguides are made of GlidCop AL-25, a
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21

PALLAVI, KARANDE, KOTYAL SHRIDHAR, MANE ANJALI, SUTKAR NISHA, and JOSHI POOJA. "DESIGN, DEVELOPMENT AND ANALYSIS OF COUPLING AND BEARING FOR THREE PHASE INDUCTION MOTOR." JournalNX - A Multidisciplinary Peer Reviewed Journal NITET2017 (March 16, 2017): 41–44. https://doi.org/10.5281/zenodo.1460432.

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&nbsp;Coupling and bearing are the very important components, in which coupling is used to connect two shafts while bearing is used to provide support to the rotating elements. In this paper the rigid flange coupling is designed to connect the shaft of three phase induction motor with the shaft of centrifugal pump. The shaft of motor and pump are supported by deep grove ball bearing. The analysis part of coupling and bearing is done using Ansys workbench. The static and vibrational analysis is carried out. The objective behind this paper is to develop the design of coupling and select a standa
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22

Kim, Tae-Kyu, Ho-Young Lee, and Sang-Min Yang. "A Study on Flange Coupling Design of Polyethylene Corrugated Steel Pipe." Transactions of the Korean Society of Mechanical Engineers A 31, no. 3 (2007): 403–8. http://dx.doi.org/10.3795/ksme-a.2007.31.3.403.

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23

Schinteie, D., and V. Croitorescu. "Silent Flange Coupling Design Used for the Schenck Eddy Current Dynamometer." IOP Conference Series: Materials Science and Engineering 161 (November 2016): 012001. http://dx.doi.org/10.1088/1757-899x/161/1/012001.

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24

Zhu, Zhimin, Chuanmei Wen, Tianliang Long, Long Jin, and Yuqi Li. "Bifurcation Analysis of a Rotor-Casing Coupling System with Bolted Flange Connection under the Effect of Rotor-Casing Rubbing Fault." Processes 11, no. 5 (2023): 1301. http://dx.doi.org/10.3390/pr11051301.

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This study mainly investigated the nonlinear vibration performance of a rotor-casing coupling system containing a bolted flange connection. The dynamic equations of the coupling system were developed while considering the radial stiffness of the bolted flange structure, which contained a spigot, squirrel cage with ball bearing, and rotor-casing coupling vibration. To study the influence of the disk casing fixed-point rubbing fault on the coupling system’s nonlinear dynamic performance, an analytical model of the nonlinear impact forces was established, which considered the contact and vibratio
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Cleva, S., I. Cudin, E. Karantzoulis, L. Rumiz, M. Comisso, and A. Passarelli. "Beam Coupling Impedance Contribution of Flange Aperture Gaps: a Numerical Study for Elettra 2.0." Journal of Physics: Conference Series 2687, no. 6 (2024): 062015. http://dx.doi.org/10.1088/1742-6596/2687/6/062015.

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Abstract The accurate analysis of any possible source of beam instability is mandatory for the design of a new particle accelerator, especially for high-current and ultra-low emittance synchrotrons. In the specific case of instabilities driven by the coupling between the charged particle beam and the electromagnetic field excited by the beam itself, the corresponding effect is estimated through the beam coupling impedance. The modeling of this effect is essential to perform a rigorous evaluation of the coupling impedance budget able to account for all devices present in the entire machine. To
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26

Oharriz, Osmay. "Innovative Polymeric Solution for Flanged Pipework Protection." Materials Performance 55, no. 8 (2016): 44–47. https://doi.org/10.5006/mp2016_55_8-44.

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Pipes are common pieces of equipment throughout many industries, and wherever there are pipes there are likely to be flanges. An innovative solution has been developed for corrosion protection of flanged couplings. The operating environment to which flanged pipework is subjected can lead to external corrosion, metal loss, and seizing of flange bolts, among other problems. These can result in plant shutdowns, waste of valuable resources, efficiency reduction, and costly maintenance expenses. By using a flexible, liquid-applied elastomeric material that can be peeled off for inspection and then
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Aher, Gaurav, Michael Sandberg, Jalil Boudjadar, and Devarajan Ramanujan. "Informing Circularity-Focused Design Optimization Using Parametric Life-Cycle Engineering Simulation Models." Smart and Sustainable Manufacturing Systems 9, no. 1 (2025): 11–36. https://doi.org/10.1520/ssms20240018.

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Abstract Design for circular economy (DfCE) aims to systematically incorporate circular economy (CE) considerations during the design phase. In this article, we introduce an integrated quantitative framework that concurrently assesses product functionality, CE, and sustainability performance to enable a more holistic DfCE. This framework enables coupling multiple life-cycle phase simulation models for estimating the effects of parameterized changes in a product’s design or life-cycle behavior on its CE and sustainability performance. We showcase the ability of the proposed framework to support
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28

LIU, Chen, Jize ZHONG, Wang HAN, Yaji WANG, Yipeng CAO, and Longhao ZHU. "An efficient predicting approach for blade frequency line-spectrum noise of marine centrifugal pumps." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 270, no. 8 (2024): 3951–62. http://dx.doi.org/10.3397/in_2024_3395.

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The paper introduces an innovative and efficient calculation method for the spectral flow noise of the pump system based on the spatial distribution dipole, which predicts the blade frequency radiation noise at the pipe flange of the pump system under different operating conditions. First, the unsteady flow simulation of the centrifugal pump is calculated using computational fluid dynamics (CFD). Then, the pressure on each segmented blade surface is decomposed into lift and drag forces. After that, each segment is decomposed into several dipole point sources based on the blade noise theory. Fi
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29

Matuszewski, Leszek. "Application of Shape Memory Alloys in Pipeline Couplings for Shipbuilding." Polish Maritime Research 27, no. 3 (2020): 82–88. http://dx.doi.org/10.2478/pomr-2020-0049.

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AbstractThe aim of the study is to analyse shape memory alloy (SMA) pipeline joints in limited space applications for all kinds of ships. Generally, the space available in various areas on ships is strictly limited and service works usually meet many obstacles. If we consider a pipeline, the flange joints always require a larger free space around the pipe than the pipe alone. A simultaneous problem can occur with the propeller shaft line coupling between bearings. SMA couplings require less space around the pipe and service should be easier, e.g., insulation fixing, painting and so on. SMA cou
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Zhou, Wang-Bao, Li-Zhong Jiang, Shu-Jin Li, and Fan Kong. "Elastic Distortional Buckling Analysis of I-Steel Concrete Composite Beam Considering Shear Deformation." International Journal of Structural Stability and Dynamics 16, no. 08 (2016): 1550045. http://dx.doi.org/10.1142/s0219455415500455.

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Elastic distortional buckling is one of the essential buckling modes of the I-steel concrete composite beam (ISCCB); such buckling often occurs under the gradient of negative moment. The key factors affecting the kind of buckling are the “torsional” and “lateral” restraint stiffnesses of the bottom flange of the beam. This paper investigates the equivalent lateral and torsional restraint stiffnesses of the bottom flange of the ISCCB under the gradient of negative moment. The relations for estimating the lateral and torsional restraint stiffnesses are used to determine the critical distortional
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31

Moestopo, Muslinang, Indi Rama, and Intan Nurishka Rachma. "KAJIAN NUMERIK DAN EKSPERIMENTAL PADA STRUKTUR DENGAN CORE FRAME MENGGUNAKAN COUPLING BEAM DAN REPLACEABLE LINK." Jurnal Teknik Sipil 29, no. 1 (2022): 25–26. http://dx.doi.org/10.5614/jts.2022.29.1.3.

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Replaceable Link merupakan sebuah istilah untuk elemen link beam yang dihubungkan oleh coupling beam pada sistem struktur core yang didesain dapat diganti jika mengalami kelelehan. Sifat inelastik struktur hanya direncanakan pada link beam, sehingga elemen lain seperti kolom dan coupling beam tetap bersifat elastik. Kajian numerik dilakukan untuk mempelajari kinerja struktur terhadap kekakuan, daktilitas, disipasi energi dan mekanisme kelelelehan. Struktur ini dianalisis dengan memvariasikan link terhadap penebalan web, penebalan flange, dan penambahan panjang. Struktur ini dibandingkan dengan
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Shanmugam, Balaji, Manikandan Palanisamy, Paul O. Awoyera, Senthilnathan Chinnasamy, and Mahalakshmi Subramaniam. "A Study on the Effect of Hollow Tubular Flange Sections on the Behavior of Cold-Formed Steel Built-Up Beams." Advances in Civil Engineering 2021 (September 27, 2021): 1–9. http://dx.doi.org/10.1155/2021/4482887.

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This paper deals with a study conducted on flexural behavior of cold-formed steel built-up I-beams with hollow tubular flange sections. There were two types of test sections, namely, built-up sections that were assembled with either stiffened or unstiffened channels coupling back-to-back at the web and a hollow tubular rectangular flange at the top and bottom of the web to form built-up I-beam. The flexural behavior along with the strength and failure modes of the built-up sections was examined using the four-point loading system. Nonlinear finite element (FE) models were formulated and valida
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33

Fan, G. Y., Bruce Mrosko, and Mark H. Ellisman. "Single-electron sensitivity with a lens-coupled CCD camera." Proceedings, annual meeting, Electron Microscopy Society of America 51 (August 1, 1993): 642–43. http://dx.doi.org/10.1017/s0424820100149040.

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A lens coupled CCD camera showing single electron sensitivity has been built for TEM applications. The design is illustrated in Fig. 1. The bottom flange of a JEM-4000EX microscope is replaced by a special flange which carries a large rectangular leaded glass window, 22 mm thick. A 20 μm thick layer of red phosphor is coated on the window, and the entire window is sputter-coated with a thin layer of Au/Pt. A two-lens relay system is used to provide efficient coupling between the image on the phosphor scintillator and the CCD imager. An f1.0 lens (Goerz optical) with front focal length 71.6 mm
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34

Meng, Xian Zhi. "Laboratory Studies of the Mechanical Properties of Bolt Thread Connection." Advanced Materials Research 724-725 (August 2013): 1740–44. http://dx.doi.org/10.4028/www.scientific.net/amr.724-725.1740.

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Threaded connection is the weak link in the system of bolting, but it has significant impact on bolting effect. By the method of laboratory tests study the Threaded connection force and deformation characteristics, including different threaded teeth, different nut thickness and shape, different nut intensity level that impact on the threaded connection, drawn thread teeth high should not be less than 0.7H ; nut thickness is 20mm, with or without flange threaded coupling strength has little effect; the nut strength should be higher than the anchor strength a level.
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35

Brahma, A., and D. C. Wynn. "CALCULATING TARGET THRESHOLDS FOR THE MARGIN VALUE METHOD USING COMPUTATIONAL TOOLS." Proceedings of the Design Society: DESIGN Conference 1 (May 2020): 111–20. http://dx.doi.org/10.1017/dsd.2020.66.

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AbstractOverspecification or excess margin in a design can enhance its ability to absorb changes and uncertainty, but also deteriorates performance criteria such as weight and cost. This paper shows how the Margin Value Method (article in review) can be applied in conjunction with CAE tools such as FEA to quantify excess margin where a design is too complex for algebraic analysis. This new application context for the MVM is illustrated using a case study of a flange coupling design, in which topology optimisation is used within the MVM to identify opportunities for design improvement.
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36

Wang, Jiaqiong, Jundong Duan, Ruijie Zhang, and Jingru Sun. "Energy Loss of Magnetic Coupling for Pump." Energies 18, no. 3 (2025): 455. https://doi.org/10.3390/en18030455.

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To investigate the energy loss characteristics of magnetic pumps, an experimental setup for magnetic transmission in pumps was constructed. Through experiments, the impact of various factors on the eddy current loss of the magnetic coupling was examined, including rotational speed, electrical conductivity of the isolation sleeve material, axial coupling length of the magnetic coupling, and the physical properties of the fluid medium. Additionally, the temperature variation at different axial positions along the isolation sleeve was measured. The results indicated that eddy current loss increas
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37

Hartloper, Alexander R., Albano de Castro e Sousa, and Dimitrios G. Lignos. "Best-fit constraint equations for coupling mixed-dimension simulation models with wide flange cross sections." Finite Elements in Analysis and Design 208 (October 2022): 103782. http://dx.doi.org/10.1016/j.finel.2022.103782.

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Barrans, Simon, Goodarz Khodabakhshi, and Qiang Xu. "Contact Pressure Distribution in Joints Formed by V-Band Clamps." Advanced Materials Research 1016 (August 2014): 34–38. http://dx.doi.org/10.4028/www.scientific.net/amr.1016.34.

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V-band clamps offer an efficient clamping solution in diverse applications including process equipment, exhaust systems and air handling. This paper studies the distribution of interface contact pressure between the V-band and flange when the coupling is established. The determination of the contact area and pressure distribution in a joint is essential information, as it determines the integrity of the coupling. A three dimensional finite element model has been developed for this purpose. Contrary to the previous assumption in developing axisymmetric models, the 3D results showed that the con
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39

Zahn, Cynthia J., and Nestor R. Iwankiw. "Flexural-Torsional Buckling and its Implications for Steel Compression Member Design." Engineering Journal 26, no. 4 (1989): 143–54. http://dx.doi.org/10.62913/engj.v26i4.527.

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Flexural-torsional and torsional buckling strength of compression members is covered for the first time in the AISC Load and Resistance Factor Design (LRFD) Specification, and, thus, must now be considered in hot-rolled steel design for buildings, in addition to overall flexural and local buckling. This new strength criterion is also included in the 1989 Allowable Stress Design (ASD) Specification. Flexural-torsional buckling is a compression member instability involving a combination of member bending and twisting as well as any local buckling of slender elements. In this behavioral sense, it
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40

He, Liang, Xiaofeng Lu, Xiaolei Zhu, and Qing Chen. "Influence of Structural Parameters of Shape Memory Alloy Corrugated Gaskets on the Contact Pressure of Bolted Flange Joints." Advances in Materials Science and Engineering 2021 (June 4, 2021): 1–19. http://dx.doi.org/10.1155/2021/5552569.

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Shape memory alloy corrugated gaskets (SMA-CGs) can adapt to fluctuating working conditions due to their pseudoelasticity (PE) and shape memory effect (SME), which make them excellent sealing components. In this study, the deformation mechanism of SMA-CGs was examined according to their structural properties under installation and operating conditions to establish an SMA-CG thermal-mechanical coupling model with the finite element analysis (FEA) method, which has been verified through experimentation. Based on this, a thermal-mechanical coupling FEA model was built for a bolted flange joint wi
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41

Ivankov, V. F., А. V. Basova, and І. V. Khimjk. "REDUCTION OF LOCAL HEATING IN TANKS OF POWERFUL TRANSFORMERS BY HEAT-REMOVING LOCAL RADIATORS WITH RIBBED." Praci Institutu elektrodinamiki Nacionalanoi akademii nauk Ukraini 2021, no. 58 (2021): 82–89. http://dx.doi.org/10.15407/publishing2021.58.082.

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The main approaches, the results of numerical modeling, and examples of the practical application of heat-dissipating radiators made of aluminum, with a flat base, and with ribbing to reduce local heating in ferromagnetic covers and walls of transformer tanks, which arise in cases of concentration of magnetic fluxes from multi-ampere taps or magnetic shunts are presented. The case of thermal coupling of a non-magnetic flange of a yoke beam with a flat base of a radiator (copper plate) is considered, which shows the possibility of reducing local heating of the beam using conductive heat transfe
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42

Zhang, Tianlong, and Yuwei Zhou. "A Simplified Finite Element Model for Seismic Analysis of a Single-Layer Reticulated Dome Coupled with an Air Duct System." Sustainability 15, no. 17 (2023): 12902. http://dx.doi.org/10.3390/su151712902.

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Damage to nonstructural components, such as air ducts, in buildings during earthquakes, which are more fragile than single-layer reticulated domes, has a significant impact on the sustainability of the building’s functionality. To study the coupling effect and failure mode of a single-layer reticulated dome with an air duct system, then, simplified finite element models of air ducts and flange bolt joints were established and validated against the solid element model. Moreover, the simplified finite element models of support hangers were also built and validated against the existing experiment
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43

Wang, Xiao Hua, Qian Zhao, Li Li, Jie Ding, Qiu Xin Zheng, and Li Liu. "Loss Characteristics Analysis and Optimization of an Off-Axis Rotary Optical Fiber Communication System." Applied Mechanics and Materials 596 (July 2014): 788–93. http://dx.doi.org/10.4028/www.scientific.net/amm.596.788.

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The losses of the off-axis rotary optical fiber communication system were derived from optical fiber coupling, three kinds of misalignments between optical fiber collimators (Axial separation Z0, lateral offset X0, angular tilting θ), incomplete alignment of optical fiber collimator during rotation and system tremble caused by high speed rotating. Some measures were taken to reduce the loss. The thermally expanded core fiber collimator cut down the influence of axial separation and angular tilting. The position of the optical fiber collimator on the flange was adjusted and infrared right angle
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Wang, Pei Qi, Qin He Zhang, Bao Tian Dong, and Ru Po Ma. "Finite Element Simulation of Large H-Beam in X-H Rolling Process." Advanced Materials Research 569 (September 2012): 251–55. http://dx.doi.org/10.4028/www.scientific.net/amr.569.251.

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In order to research the hot rolling process of large H-beam, the thermal-mechanical coupling analysis and big distortion theory are used to simulate the whole X-H rolling process of HN900x300 by ABAQUS, in which the re-meshing technique is taken into simulation to increase the accuracy. Based on the simulation results, the stress and deflection of the roller as well as the metal flowing law and temperature field of workpiece are discussed emphatically. The results clearly show that the roller is subjected to alternating shear force and compressive stresses of three directions, and the metal o
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45

Komarov, S. A., and V. V. Shcherbinin. "Matching and mutual coupling characteristics of the elements of a finite waveguide array with an impedance flange." Journal of Communications Technology and Electronics 52, no. 7 (2007): 717–24. http://dx.doi.org/10.1134/s1064226907070017.

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Yin, Yan, and Tang Li. "Numerical Simulation of Fire Resistance Performance for Planar Frame with Concrete Filled Steel Tubular Columns and Steel Beams." Applied Mechanics and Materials 94-96 (September 2011): 755–58. http://dx.doi.org/10.4028/www.scientific.net/amm.94-96.755.

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In this paper, the fire resistance performance of the unprotected two-layer and two-cross planar frame, which is composed of concrete filled steel tubular columns and steel beams, was analyzed under local fire by ANSYS. After analyzing the structure with the method of hot - structural coupling using standard heating curve ISO-834, some consequence were obtained such as the regularity of temperature field distribution of beams and columns and the fire endurance and critical temperature of the structure. It turned out that the bottom flange at the end of the beams appeared local buckling when th
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47

Lane, A., and J. T. Mottram. "Influence of modal coupling on the buckling of concentrically loaded pultruded fibre-reinforced plastic columns." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 216, no. 2 (2002): 133–44. http://dx.doi.org/10.1177/146442070221600208.

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An experimental investigation concerning the buckling behaviour of pultruded fibre-reinforced plastic (PFRP) columns is presented. Full-sized tests were performed on wide-flange pultruded members across a range of lengths where local, global and combined buckling modes were expected. Combined buckling describes the situation where the local and global buckling modes occur concurrently in a violent and unstable manner. The research aims to provide test data that increase understanding of modal coupling in concentrically loaded columns. Modal coupling effects cause a reduction in the buckling lo
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48

Komarov, S. A., and V. V. Scherbinin. "Influence of a surface wave on mutual coupling of elements of a waveguide grid with an impedance flange." Russian Physics Journal 49, no. 8 (2006): 888–90. http://dx.doi.org/10.1007/s11182-006-0193-7.

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Zhu, Lingxue, Yang Liu, Mingxuan Li, Xiaofeng Lu, and Xiaolei Zhu. "Calculation Model of Mechanical and Sealing Properties of NiTi Alloy Corrugated Gaskets under Shape Memory Effect and Hyperelastic Coupling: Two Sealing Properties." Materials 15, no. 13 (2022): 4659. http://dx.doi.org/10.3390/ma15134659.

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Bolted flange connections are commonly used in process industries. Their sealing performance is greatly affected by the gasket. In this paper, a NiTi alloy corrugated gasket was simulated to reveal its sealing performance, considering the gasket surface roughness, shape memory effect and superelastic effect. A fluid–structure coupling analysis method that takes the real surface morphology of the gasket contact zone was proposed, and a leakage rate prediction model was established. The results showed that NiTi shape memory effect could enhance the sealing reliability in service and lower the le
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Batson, RE, H. W. Mook, P. Kruit, O. L. Krivanek, and N. Dellby. "Progress with the IBM Very High Resolution STEM." Microscopy and Microanalysis 7, S2 (2001): 234–35. http://dx.doi.org/10.1017/s1431927600027240.

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The IBM high resolution STEM project has now reached the point where integration of new subsystems into the instrument is the main activity. During the past three years, we have demonstrated a 50meV EELS resolution using a high brightness electron monochromator incorporated into the electron gun [1, 2, 3], and better than 0.14mn spatial resolution using spherical aberration correction at 120KeV. [4] Recent effort has been to identify and remove many sources of instabilities in the original instrument; to rebuild several existing subsidiary pieces of equipment such as the ADF detector, the EELS
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