Academic literature on the topic 'Radial rigidity'

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Journal articles on the topic "Radial rigidity"

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Shimizu, Ichiro, Akira Wada, and Makoto Sasaki. "A Study on Designing Balloon Expandable Magnesium Alloy Stent for Optimization of Mechanical Characteristics." Proceedings 2, no. 8 (2018): 523. http://dx.doi.org/10.3390/icem18-05398.

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Recently, the demand for a bio-absorbable coronary stent to promote recovery after an operation has increased. An option for such a stent is one made of a magnesium alloy, which has biodegradable properties. However, magnesium alloys have lower rigidity and lower ductility than other metals; as such, an appropriate stent structure is required to ensure radial rigidity. In this study, design parameters for an AZ31 magnesium alloy stent with sufficient radial rigidity were investigated. The necessary radial rigidity was determined by comparison tests against commercially available stents. The de
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Carlson, R., and C. Shubin. "Spectral Rigidity for Radial Schrödinger Operators." Journal of Differential Equations 113, no. 2 (1994): 338–54. http://dx.doi.org/10.1006/jdeq.1994.1127.

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Horiuchi, Osamu, Masami Masuda, and Takayuki Shibata. "Bending of Drill and Radial Forces in Micro Drilling." Advanced Materials Research 797 (September 2013): 642–48. http://dx.doi.org/10.4028/www.scientific.net/amr.797.642.

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This paper describes theoretical analysis of bending deflection and anisotropic rigidity of drill, and the induced radial forces in micro drilling. The main results obtained are as follows. (1) There are two different modes of drilling which cause bending deflection of drill and induce radial forces. They are position error mode and run-out mode. (2) The radial forces induced behave quite differently between the two modes. (3) The radial forces increases as the depth of hole increases, because the rigidity of drill beam increases. (4) The position error mode induces a cyclic stress in the dril
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Wang, Shu Lin, Wei Zhan Zhang, and Wen Hua Chen. "Analysis of Radial Rigidity about the Hydraulic Expansion Toolholder." Advanced Materials Research 381 (November 2011): 76–80. http://dx.doi.org/10.4028/www.scientific.net/amr.381.76.

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Toolholder radial rigidity plays an important role in tool vibration and the quality of machine face. Toolhoder radial rigidity is investigated by the finite element method. The factors such as the fitness between tool and toolhoder, the length of oil chamber bulge, oil pressure and rotation speeds are analyzed in the paper, the results can offer some effectively guidelines and reference for toolhoder machining and processing quality control.
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Li, Jin Tao, Shu Lin Wang, Zhu Feng Li, Yong Hui Yu, and Xue Liang Cheng. "Analysis of Axial Holding Capability about the Lengthened Shrink-Fit Holder and Cutting Tool System." Advanced Materials Research 940 (June 2014): 249–53. http://dx.doi.org/10.4028/www.scientific.net/amr.940.249.

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Lengthened shrink-fit holder is one important part of high speeding tool system. Its gripping rigidity directly affects the quality of the processed parts and machining efficiency. Building the FEA model of axial gripping rigidity about Lengthened shrink-fit holder and Cutting tool system with UG NX to analyze the influence with different interference,speed,gripping length and thickness on axial gripping rigidity. The gripping rigidity is one important parameter of the lengthened shrink-fit holder and cutting tool system, including radial griping rigidity,torsional griping rigidity and axial g
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Minchenya, V. T., A. L. Savchenko, and N. T. Minchenya. "ASSESSMENT OF MECHANICAL CHARACTERISTICS OF VASCULAR ENDO-PROSTHESES." Science & Technique 16, no. 5 (2017): 400–406. http://dx.doi.org/10.21122/2227-1031-2017-16-5-400-406.

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Titanium nickelide (nitinol) is one of prospective materials for production of special endo-prostheses and other parts and characterized with effect of shape memory. A specific feature of vascular endo-prostheses is the necessity to provide the required rigidity within the temperature interval from 15 to 42 оС. It has been established that titanium nickelide is able to provide the required rigidity but it depends on preliminary heat treatment parameters. So, it is important to determine rela-tions between rigidity of titanium nickelide wire and its preliminary heat treatment parameters for the
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SAEKI, Y., H. HASHIZUME, M. NAGOSHI, H. TANAKA, and H. INOUE. "Mechanical Strength of Intramedullary Pinning and Transfragmental Kirschner Wire Fixation for Colles’ Fractures." Journal of Hand Surgery 26, no. 6 (2001): 550–55. http://dx.doi.org/10.1054/jhsb.2001.0646.

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Four methods of distal radius fracture fixation were tested in this experimental biomechanical study of an unstable Colles’ fracture model. Sixty artificial radial bones and seven pairs of cadaveric radii were used. Seven additional pairs of paired cadaveric radial epiphyses were used in separate perforation and cut-out tests. Tests with the artificial bones showed that the rigidity of the four tested fixation methods was comparable, except for proximal intramedullary pinning. The rigidity of the NODE fixation in the cadaveric radii was greater than that of transfragmental pinning. The load at
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Hu, Jin, and Gen Bao Zhang. "Experiments and Study of the Static Rigidity of Workpiece Spindle of Direct-Drive Gear Hobbing Machine." Applied Mechanics and Materials 233 (November 2012): 355–60. http://dx.doi.org/10.4028/www.scientific.net/amm.233.355.

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Static rigidity of workpeice spindle component is a very important index of the rigidity of derict-drive gear hobbing spindle unit. In this study, the static rigidity of workpiece spindle system were analyzed through a finite element method (EFM) by building geometric models and studying the deformation when radial cutting force was imposed. Experiments on workpiece were carried out with and without the assistance of tailstock center separately to measure the changes of the static rigidity of spindle. The results prove a less change of the static rigidity of spindle when with the assistance of
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Chen, Zhenya, Zhuoqiang Ma, Xiang Li, Hongbing Miao, Shangjin Yang, and Jian Li. "Deep hole connector design and oil film pressure study." Vibroengineering Procedia 50 (September 21, 2023): 250–56. http://dx.doi.org/10.21595/vp.2023.23379.

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Aiming at the problem of insufficient rigidity of the tool system and unbalanced radial force during deep hole machining, this paper designs a deep hole connector using the fluid dynamic pressure lubrication principle. The deep hole connector includes double-bridge strain gauges and tiltable tiles, which can increase the rigidity of the tool system by using the oil film support stiffness and offset the unbalanced radial force of synchronous detection by adjusting the oil film pressure in real time. First, the mathematical model of tiltable tile is established, the oil film thickness formula is
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Itu, Calin, Andreas Öchsner, Sorin Vlase, and Marin I. Marin. "Improved rigidity of composite circular plates through radial ribs." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 233, no. 8 (2018): 1585–93. http://dx.doi.org/10.1177/1464420718768049.

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Engineering practice imposes an increased rigidity of mechanical elements that are parts of machinery or equipment used in practice. Circular plates are such elements, especially used in many common applications, which is why the increase in mechanical properties of circular plates in engineering is connected with the weight optimization problem. The paper makes a study of such a composite plate, proposes and validates a constructive solution capable of increasing the stiffness of this piece. The finite element method is used for the composite panel analysis, and experimental measurements allo
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Dissertations / Theses on the topic "Radial rigidity"

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Телевний, А. А. "Числовий розрахунок жорсткості підшипникових опор відцентрових машин з урахуванням податливості корпуса". Master's thesis, Сумський державний університет, 2019. http://essuir.sumdu.edu.ua/handle/123456789/75837.

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У роботі побудована тривимірна скінченноелементна модель підшипника кочення і проведена порівняльна характеристика різних контактних моделей при розрахунку жорсткості підшипникових опор турбонасоса із застосуванням як аналітичних залежностей, так і методів числового аналізу напружено-деформованого стану у програмному комплексі ANSYS.
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Sugita, Satoru. "Etude par simulation numérique du transport radial dans le plasma de bord du tokamak." Thesis, Aix-Marseille 1, 2011. http://www.theses.fr/2011AIX10010/document.

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Il est maintenant accepté expérimentalement que les filaments de plasma alignés sur le champ magnétique, appelés “blobs”, jouent un rôle important dans le transport dans le plasma de bord. Dans cette thèse, les phénomènes fondamentaux du transport dans le plasma de bord sont étudiés en mettant l'accent sur le phénomène de filaments plasma. Dans un premier temps, les mécanismes de propagation de blobs uniques sont envisagés. Puis la génération de blobs par la turbulence de bord est étudiée, et le transport turbulent est discuté entant que phénomène collectif. Des particularités du transport tur
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Books on the topic "Radial rigidity"

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Van Den Bos, Kees. Rigidity of Thoughts. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190657345.003.0007.

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Rigidity of thoughts or “cognitive rigidity” is an important component of how radical people reason, perhaps even more so than is commonly realized. Black-and-white thinking or rigidity of human thoughts manifests itself in different ways. Chapter 7 examines how people can be tempted to become rigid in their solving of various non-social tasks, how social rigidity can play up in people’s personal beliefs and their need for social structure, how rigidity is related to people’s need to shield themselves from unwanted thoughts and their need to know and understand things, sometimes culminating in
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Vander Wel, Stephanie. Hillbilly Maidens, Okies, and Cowgirls. University of Illinois Press, 2020. http://dx.doi.org/10.5622/illinois/9780252043086.001.0001.

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Well before the success of Loretta Lynn and Dolly Parton, female artists were integral to the commercial expansion and aural reception of country music. Women in early country music took on and redefined the theatrical and musical roles of the hillbilly maiden, the unruly Okie, the singing cowgirl, and the honky-tonk angel in live performance, on radio, in film, and in the recording studio. This book accounts for the vibrant presence of female country artists through an interdisciplinary focus on performance and vocal expression in relation to the cultural currents of the 1930s and 1950s. Acro
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Book chapters on the topic "Radial rigidity"

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Booth, Richard, and Rachel Egan. "Rigidity." In Group Radical Openness. Routledge, 2023. http://dx.doi.org/10.4324/9781003321576-6.

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Xiang, Zairong. "Inbuilt Errans." In Errans. ICI Berlin Press, 2022. http://dx.doi.org/10.37050/ci-24_7.

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‘Inbuilt errans’ points to the core of the concept, namely the semantic entanglement of errantry and error. Errans as the erroneous wandering or the drifting error complicates the celebration of movement, fluidity, flexibility, or even ‘queering’. The rigid or stubborn aspect of errans, its erroneousness on the other hand not only accompanies but also enables its errancy. The ‘rigidity’ (as rigidity in flux) requires scare quotes in order to mark the ways in which these qualities might collapse when a question of ‘to whom?’ is posed. Through an eclectic errantry through a personal anecdote, a
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Wen, Mei, L. E. Scriven, and Alon V. McCormick. "Rigidity Percolation Modeling of Modulus Development During Free-Radical Crosslinking Polymerization." In Protective Coatings. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-51627-1_3.

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Murphy, Ann. "The Redress of Psychoanalysis." In Clinical Encounters in Sexuality. punctum books, 2017. https://doi.org/10.21983/p3.0167.1.11.

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Seamus Heaney’s eloquent apologia on behalf of poetry cap-tures more accurately than most psychoanalytic texts my own way of thinking about the practice of psychoanalysis. Thinking through poetry may be my antidote to some tendencies in psy-choanalytic theory, language and practice towards institutional-ized rigidity, with its focus on the adaptive and the normative, as opposed to the radical sense of the singularity and uniqueness of the individual, which is the gift of psychoanalysis at its best. Postmodern, social constructionist critiques of gender, sexu-ality, and identity have challenged
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Evans, Ruth. "Lacan's belles-lettres." In On Style. punctum books, 2013. https://doi.org/10.21983/p3.0055.0.04.

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Ever since the Sokal affair, humanities scholar-ship in some quarters stands accused of unin-telligibility, emptiness, or absurdity.1 Sure, there’s some bad theoretical writing out there. But not all of it is willfully unreadable. A familiar set of binaries runs through and across these accusa-tions: not only clarity/obscurity, but wonder/ pessimism, aesthetics/politics, and affect/the her-meneutics of suspicion. But these oppositions are far from being rigidly distributed along either side of the fault line dividing the “two cultures.” The turn to what has been called “the new aestheticism” w
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Ng, Jenna. "Light Projections: On the Matter of Light and the Lightness of Matter." In The Post-Screen Through Virtual Reality, Holograms and Light Projections. Amsterdam University Press, 2021. http://dx.doi.org/10.5117/9789463723541_ch05.

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This chapter explicates light projections as the third instantiation of the post-screen. The chapter’s argument premises on light being the matter of light, namely, light as transformational in the convertibility between materiality and immateriality; matter and energy; rigidity and fluidity, whereby the corporeal is not only rendered impalpable but – its body energized, vitalized and volatile – turned inside out; consumed; deposed. The chapter thus argues for the post-screen through contemporary light projections and projection mapping technologies as the transformation of a variety of surfac
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Bisang, Walter. "Levels of analysis and word classes (root, stem, word)." In The Oxford Handbook of Word Classes. Oxford University Press, 2023. http://dx.doi.org/10.1093/oxfordhb/9780198852889.013.1.

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Abstract The chapter presents a systematic account of how the morphological levels of root, stem, and word interact with word class. Based on an input–output model for comparing word-class flexibility or rigidity at each level, it develops eight morphological word-class types. These types are established on a maximally broad empirical basis, including typological challenges like omnipredicative and nominalistic languages as they are described in the literature (Classical Nahuatl and Tagalog, respectively). As a result, the chapter confirms Haig’s (2006) and Lehmann’s (2008) generalization that
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Cirillo, Frank J. "Waiting for the Perfect Moment." In New Perspectives on the Union War. Fordham University Press, 2019. http://dx.doi.org/10.5422/fordham/9780823284542.003.0002.

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Unlike most abolitionists, Abby Kelley Foster and Stephen Foster refused to support the Union war. This chapter locates their antiwar motivations in their idiosyncratic brand of nationalism. The Fosters, like all abolitionists, desired to create a more perfect Union bereft of slavery and moral prejudice. The couple, however, led a hard-line faction that also emphasized moral rigidity—the need for reformers to avoid compromise, lest they corrupt the antislavery mission. This radical vision led the Fosters to oppose the Union war as an imperfect—and therefore unacceptable—vehicle for antislavery
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Kent, Miriam. "Mutants, Cyborgs and Femininity Unfixed? Addressing the Gendered Bodies of Mystique and Nebula." In Women in Marvel Films. Edinburgh University Press, 2021. http://dx.doi.org/10.3366/edinburgh/9781474448826.003.0008.

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Though Marvel superhero films often display a need to maintain gender rigidity, two interesting cases are the mutant shapeshifter Mystique, who appears in the X-Men films, and the female cyborg Nebula of the Guardians of the Galaxy films. This chapter addresses the potential for queer readings of these characters, while also examining how they are placed within postfeminist boundaries. The simultaneous queering and de-queering of Mystique that occurs throughout the X-Men films is a notable paradox. Meanwhile, Nebula can be read in terms of the radical politics of the gendered cyborg, especiall
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Whittall, Arnold. "Polarities, Pluralities." In Musical Composition in the Twentieth Century. Oxford University PressOxford, 2000. http://dx.doi.org/10.1093/oso/9780198166849.003.0017.

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Abstract The consistent pursuit of truth, of what Elliott Carter has termed an ‘emancipated discourse’, as personal, authentic, has had priority in twentieth-century music over attempts to create something whose primary characteristic was its ‘beauty’. The late twentieth-century composer may still work by a set of values, however recondite and austere, and some can still declare hostility to what Brian Ferneyhough perceives as ‘the present state of value-free pluralisrn’.2 Composers may even reach the point of concerning themselves exclusively with ‘rigidly constructed denial, with the exclusi
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Conference papers on the topic "Radial rigidity"

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Li, Gui-Hua, and Ping Huang. "Effect of Axial Preloading and Wheel Offset on the Performances of Automotive Wheel Bearings." In ASME/STLE 2007 International Joint Tribology Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ijtc2007-44052.

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With considering the contact angle variations, the nonlinear systems of equations are utilized to obtain load distributions of automotive wheel bearings with axial preloading under radial and lateral tire loads and analyze the effects of axial preloading and wheel offset on the performances of the bearings. The results show that the axial preloading has much more significant influences on the load distributions, the displacements, the system fatigue life and the moment rigidity than the wheel offset. The relative inclination angle is linearly proportional to the axial preloading. The moment ri
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Tang, David T., Antonio Rigato, and Robert Einziger. "Flaw Effects and Flaw Reorientation on Spent Fuel Rod Performance: A Simulation With Finite Element Analysis." In ASME 2015 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/pvp2015-45306.

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While fuel cladding failures have decreased significantly over the years, fuel cladding can still develop defects in the form of cracks, blisters, and circumferential hydride precipitates when irradiated. After drying for storage, circumferential precipitates may reorient as radial hydrides. This study examines if these hydrides could potentially influence the bending performance of the rod. Using a hollow, simply supported fuel tube to simulate the limiting behavior of a spent fuel rod deprived of the flexural rigidity contribution of the pellets, effects of the hydrides presence and orientat
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Dalmoro, Bruna M., and Soraia R. Musse. "Predicting Popularity of Facebook Videos Through Visual Features Using Support Vector Machine Classifier." In Seminário Integrado de Software e Hardware. Sociedade Brasileira de Computação - SBC, 2021. http://dx.doi.org/10.5753/semish.2021.15815.

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With the popularization of social networks, the sharing and consumption of content in video format becomes easier. Understanding what makes a video popular and being able to predict its popularity in number of views is useful for both content creators and advertising. In this work, we explore visual features extracted from 1,820 Facebook videos in order to predict whether they will reach more than a certain number of views on the seven days after publication. For this purpose, we used Support Vector Machine with Gaussian Radial Basis Function classification model. Using only visual features as
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Seifert, David Ryan, Wesley A. Chapkin, Geoffrey Frank, and Jeffrey Baur. "Design, Fabrication, and Testing of Optimized Flexible Cylinders." In ASME 2019 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/smasis2019-5601.

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Abstract This article presents the design, fabrication, and testing of multimaterial articulating cylinders with optimized periodic substructures. Genetic Optimization (NSGA-II) is used to obtain promising archetypes, which are rapidly post-processed, additively manufactured, and tested for bending and torsional rigidity. Objectives are set as structural stiffness in torsion and bending, subject to stress and maximum radial displacement constraints. A multimaterial printer allows for two material (stiff and compliant) design. Pareto Optimal structures are down selected and post processed into
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Pekris, Michael J., Gervas Franceschini, Ingo H. J. Jahn, and David R. H. Gillespie. "Experimental Investigation of a Leaf Seal Prototype at Engine-Representative Speeds and Pressures." In ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/gt2015-43231.

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The application of compliant filament seals to jet engine secondary air systems has been shown to yield significant improvements in specific fuel consumption and improved emissions. One such technology, the leaf seal, provides comparable leakage performance to the brush seal but offers higher axial rigidity, significantly reduced radial stiffness and improved compliance with the rotor. Investigations were carried out on the Engine Seal Test Facility at the University of Oxford into the behavior of a leaf seal prototype at high running speeds. The effects of pressure, speed and cover plate geom
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Ní Ghriallais, Ríona, and Mark Bruzzi. "Investigation of the Effect of Stent Length and Stent Location on the Deformation Characteristics of the Femoropopliteal Artery After Knee Flexion: A Finite Element Study." In ASME 2013 Conference on Frontiers in Medical Devices: Applications of Computer Modeling and Simulation. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/fmd2013-16095.

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There are a range of physiological movements such as knee and hip flexion that result in the deformation and loading of the femoropopliteal artery, characterised as axial compression, radial compression, bending and torsion [1]. The SFA is a prevalent location for peripheral arterial disease often requiring percutaneous transluminal angioplasty followed by stenting to restore vessel patency and uncompromised blood flow. Whilst stent placement provides the required scaffolding of the artery, opening up blockages and preventing elastic recoil of the vessel, it alters axial rigidity, changing the
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Ruiwei, Liu, Hongwei Guo, Zhang Qinghua, Rongqiang Liu, and Tang Dewei. "Dynamic Characteristics Analysis of Cable-Rib Tension Deployable Antenna." In ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/detc2016-59218.

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Balancing stiffness and weight is of substantial importance for antenna structure design. Conventional fold-rib antennas need sufficient weight to meet stiffness requirements. To address this issue, this paper proposes a new type of cable-rib tension deployable antenna that consists of six radial rib deployment mechanisms, numerous tensioned cables, and a mesh reflective surface. The primary innovation of this study is the application of numerous tensioned cables instead of metal materials to enhance the stiffness of the entire antenna while ensuring relatively less weight. Dynamic characteris
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Malhotra, N., N. Sri Namachchivaya, and T. Whalen. "Finite Amplitude Dynamics of a Flexible Spinning Disc." In ASME 1995 Design Engineering Technical Conferences collocated with the ASME 1995 15th International Computers in Engineering Conference and the ASME 1995 9th Annual Engineering Database Symposium. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/detc1995-0264.

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Abstract The transverse dynamics of a high speed spinning disc which is clamped at the inner radius and rotating with a time-varying spin rate is examined in a space fixed frame of reference. The general nonlinear equations of motion governing the disc dynamics are systematically derived using displacement as well as stress function formulations. These equations of motion include the effects due to inherent bending rigidity, membrane stresses arising from centrifugal forces, non-axisymmetry of the in-plane and transverse displacements, geometric nonlinearities, aerodynamic damping arising from
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Luo, Jintao, Xiandong Liu, Yue Zhang, and Yingchun Shan. "Strength Analysis and Structural Optimization of Multi-Piece Wheels for Heavy Vehicles." In ASME 2020 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/imece2020-23428.

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Abstract Due to the capacity for high payloads and harsh operating conditions, and the simple demounting tire operation, multipiece wheels are widely used on heavy vehicles and construction machinery. There is potential for weight reduction of one certain multi-piece wheel (type 8.5-20) for heavy vehicles based on its greatly low failure rate from the customer usage data. In order to improve material efficiency, the strength analysis and structural optimization of the multi-piece wheel was systematically studied in this paper. The characteristics of the wheel under the bending load and radial
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UEDA, Shingo, Tatsuo SUZUKI, Mitsuyoshi KAMIYA, and Tadashi NIINO. "69 Development of Gear Train Behavioral Analysis Technologies Considering Non-linear Elements." In Small Engine Technology Conference & Exposition. Society of Automotive Engineers of Japan, 2002. http://dx.doi.org/10.4271/2002-32-1838.

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<div class="htmlview paragraph">A numerical calculation method, which enables the analysis of gear train behavior including non-linear elements in a motorcycle engine, was established. During the modeling process, it was confirmed that factors such as bearing distortion, radial bearing clearance and elastic deformation of a tooth flank could not be neglected because they effect the rotation behavior. To keep a high accuracy, those factors were included in the simulation model, after they were converted into the rigidity elements along the rotational direction of each gear model. In addit
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