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Relevant bibliographies by topics / Rotating mechanism

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Academic literature on the topic 'Rotating mechanism'

Author: Grafiati

Published: 28 June 2021

Last updated: 2 February 2022

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Journal articles on the topic "Rotating mechanism"

1

Fujioka, Yasuo, and Tomotsugu Sakai. "Rotating Loosening Mechanism of a Nut Connecting a Rotary Disk Under Rotating-Bending Force." Journal of Mechanical Design 127, no. 6 (February 27, 2005): 1191–97. http://dx.doi.org/10.1115/1.2049087.

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Structures composed of a rotary disk and a shaft, which are fastened with bolts and nuts having tapered bearing surfaces, are loaded with a rotating-bending force. Upon investigation, two rotating mechanisms of the nut were derived. In one mechanism a high-pressure contact area is formed at the nearest loading point on threads and bearing surfaces. This leads to a difference in the curvature radii between the bearing surface of the disk and that of the nut. During the revolution of the disk, two friction torques occur in opposite directions on the bearing surface and the threads, respectively. The relative rotating direction of the nut is dominated by the greater torque. The other mechanism is due to the eccentricities caused by dimensional errors of the bolt, nut, and disk. By combining the two mechanisms, the rotations of the nuts either cause a loosening or tightening after many revolutions of the disk.

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Ardeljan, N. V., G. S. Bisnovatyi-Kogan, and S. G. Moiseenko. "Magnetorotational Mechanism: Supernova Explosions and Ejections." Symposium - International Astronomical Union 214 (2003): 117–20. http://dx.doi.org/10.1017/s0074180900194252.

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We made simulations of the collapse of the rotating protostellar cloud. Differential rotation leads to the amplification of the toroidal component of the magnetic field and subsequent ejection of the matter due to the magnetorotational mechanism.Our results show that at different initial configurations of the magnetic field formation of qualitatively different types of explosion takes place. Magnetic field of the dipole type produces a jet-like explosion. Quadrupole-like magnetic field produces supernova explosion whith ejection presumably near equatorial plane. Quantitative estimations of the ejected mass and energy are given.We have done simulation of the collapse of the white dwarf and formation of a differentially rotating neutron star. After the collapse stage the rotating neutron star was formed. The rotation of the neutron star is strongly differential. The presence of the magnetic field (even the weak one) could produce magnetorotational supernova explosion.For the simulations we have used 2D numerical scheme, based on the specially developed numerical method (conservative, implicit, triangular grid, Lagrangian, grid reconstruction).

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Chai, Fu Jun, and Jin You Xu. "Kinematic Analysis of Clamping and Rotating Mechanism." Advanced Materials Research 308-310 (August 2011): 2003–7. http://dx.doi.org/10.4028/www.scientific.net/amr.308-310.2003.

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In order to realize accurate rotation of steel pipe in automatic rolling pipe bender, a tilt cylinder six bar mechanism driven by pneumatic cylinder was presented. Based on the analysis of mechanism motion’s state, the motion process was divided into three working stages: clamping, rotating and loosening back. And kinematics parameters in every phase of the mechanism were obtained by complex number vector method, furthermore the mechanism kinematics characteristics of the whole process were gained. The results of the simulation example indicated that the mechanism has less change in velocity and more smooth motion during clamping and rotating stages.

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NOMURA, Aktio, Masahiro FUJITA, Masaki Ozawa, Eri TAKANE, Hirone KOMATSU, Kenjiro TADAKUMA, Masashi Konyo, and Satoshi Tadokoro. "Screw-type Differential Rotating Mechanism." Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2017 (2017): 1P1—G10. http://dx.doi.org/10.1299/jsmermd.2017.1p1-g10.

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Seshasayanan, Kannabiran, and Alexandros Alexakis. "Condensates in rotating turbulent flows." Journal of Fluid Mechanics 841 (February 23, 2018): 434–62. http://dx.doi.org/10.1017/jfm.2018.106.

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Using a large number of numerical simulations we examine the steady state of rotating turbulent flows in triple periodic domains, varying the Rossby number $Ro$ (that measures the inverse rotation rate) and the Reynolds number $Re$ (that measures the strength of turbulence). The examined flows are sustained by either a helical or a non-helical Roberts force, that is invariant along the axis of rotation. The forcing acts at a wavenumber $k_{f}$ such that $k_{f}L=4$, where $2\unicode[STIX]{x03C0}L$ is the size of the domain. Different flow behaviours were obtained as the parameters are varied. Above a critical rotation rate the flow becomes quasi-two-dimensional and transfers energy to the largest scales of the system, forming large coherent structures known as condensates. We examine the behaviour of these condensates and their scaling properties close to and away from this critical rotation rate. Close to the critical rotation rate the system transitions supercritically to the condensate state, displaying a bimodal behaviour oscillating randomly between an incoherent-turbulent state and a condensate state. Away from the critical rotation rate, it is shown that two distinct mechanisms can saturate the growth of the large-scale energy. The first mechanism is due to viscous forces and is similar to the saturation mechanism observed for the inverse cascade in two-dimensional flows. The second mechanism is independent of viscosity and relies on the breaking of the two-dimensionalization condition of the rotating flow. The two mechanisms predict different scaling with respect to the control parameters of the system (Rossby and Reynolds), which are tested with the present results of the numerical simulations. A phase space diagram in the $Re,Ro$ parameter plane is sketched.

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Erasmus, N., D. Kramer, A. McNeill, D. E. Trilling, P. Janse van Rensburg, G. T. van Belle, J. L. Tonry, L. Denneau, A. Heinze, and H. J. Weiland. "Discovery of superslow rotating asteroids with ATLAS and ZTF photometry." Monthly Notices of the Royal Astronomical Society 506, no. 3 (July 10, 2021): 3872–81. http://dx.doi.org/10.1093/mnras/stab1888.

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ABSTRACT We present here the discovery of a new class of superslow rotating asteroids (Prot ≳1000 h) in data extracted from the Asteroid Terrestrial-impact Last Alert System (ATLAS) and Zwicky Transient Facility (ZTF) all-sky surveys. Of the 39 rotation periods we report here, 32 have periods longer than any previously reported unambiguous rotation periods currently in the Asteroid Light Curve Data base. In our sample, seven objects have a rotation period >4000 h and the longest period we report here is 4812 h (∼200 d). We do not observe any correlation between taxonomy, albedo, or orbital properties with superslow rotating status. The most plausible mechanism for the creation of these very slow rotators is if their rotations were slowed by YORP spin-down. Superslow rotating asteroids may be common, with at least 0.4 per cent of the main-belt asteroid population with a size range between 2 and 20 km in diameter rotating with periods longer than 1000 h.

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Chai, Fu Jun, Jin You Xu, and Ying Xu. "Kinematics Simulation of Steel Tube Rotating Mechanism Based on ADAMS." Applied Mechanics and Materials 130-134 (October 2011): 2647–50. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.2647.

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Taking a new steel tube rotating mechanism as the research object, the model is simplified and the virtual prototyping model of the mechanism is established. The mechanism kinematics simulation is carried out with ADAMS simulation software. The motion law and state in two conditions are comparatively analyzed. Analysis results show that, in steel tube clamping stage the motion of the clip rod is of variable deceleration; And in rotating stage, mechanism is of accelerated rotation with variable acceleration when the cylinder input, while mechanism is of uniform rotation when the crank input； And then the cylinder is with positive and reverse swings throughout the movement process. The analysis results provide the basis for institution parameter selection and structure optimization design.

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Deng, Hao, Cun Yun Pan, and Xiao Cong Wang. "Non-Uniform Motion Mechanisms Utilized in a Twin-Rotor Piston Engine." Applied Mechanics and Materials 184-185 (June 2012): 320–23. http://dx.doi.org/10.4028/www.scientific.net/amm.184-185.320.

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Non-uniform motion mechanisms (NUMM) utilized in a Twin-rotor piston engine (TRPE) are introduced. TRPE mechanism consists of two major components. One is energy conversion system (ECS), and the other is differential velocity drive mechanism (DVDM). DVDM is composed of NUMMs and ordinary gear train in this paper. NUMMs generate two non-uniform rotations with same pattern and different pace. Gear train duplicates the two rotations and causes the two rotors rotating with periodical oscillation.

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9

Дворжак, В. М. "ЗАСТОСУВАННЯ МЕХАНІЗМУ ЧЕТВЕРТОГО КЛАСУ ДЛЯ ПРИВОДУ ВУШКОВИХ ГОЛОК ОСНОВОВ’ЯЗАЛЬНОЇ МАШИНИ." Bulletin of the Kyiv National University of Technologies and Design. Technical Science Series 146, no. 3 (January 11, 2021): 15–24. http://dx.doi.org/10.30857/1813-6796.2020.3.1.

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Development and research of functionally-adequate target mechanisms of technological machines of light industry with application of applied CAE-programs. Used the apparatus of vector algebra; analytical and numerical methods for determining the position functions of planar mechanisms containing a structural group of the fourth class of the second order, based on the vector transformation of coordinates; random search method for metric synthesis of flat mechanisms; methods of computer visualization and animation of kinematic schemes of flat mechanisms of higher classes. Mathematical models describing the position functions of the mechanism of eyelets of a warp knitting machine containing a structural group of the fourth class of the second order with rotating kinematic pairs in the form of angles of moving links, free vectors constructed on these links and radius vectors of characteristic points of the mechanism as a function of the angle of rotation of the master crank. The geometrical parameters of the flat six-link mechanism of eyelets for the warp knitting machine containing the structural group of the fourth class of the second order with rotating kinematic pairs as a result of metric synthesis of the mechanism by random search in CAE-program are determined; computer circuit modeling of the obtained mechanism is performed; graphs of visualization and animation of the kinematic scheme of the received mechanism are constructed; identification of the kinematic scheme of the obtained mechanism for compliance with the accepted structure; the received graph of function of position of an auricular needle of the mechanism of the fourth class; the functions of the position of the eye needle of the new mechanism and the mechanism of the basic knitting machine OV-7 are compared. The structure of a flat six-link mechanism, containing structural groups of the fourth class of the second order with rotating kinematic pairs, is proposed for use as a drive in a warp knitting machine on the example of the mechanism of oscillating movement of eyelets. The geometric dimensions of the moving parts of the functionally adequate mechanism of the fourth class for the drive of the eye needles of the basic knitting machine are determined. Software blocks for automated computer metric synthesis and calculation of link angles and radius vectors of characteristic points of the mechanism in the CAE program have been created. Practical Value is to use the results for the design and construction of flat mechanisms of the fourth class with rotating kinematic pairs of warp knitting machines, in which the working bodies make stops during the work process.

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10

Дворжак, В. М. "ЗАСТОСУВАННЯ МЕХАНІЗМУ ЧЕТВЕРТОГО КЛАСУ ДЛЯ ПРИВОДУ ВУШКОВИХ ГОЛОК ОСНОВОВ’ЯЗАЛЬНОЇ МАШИНИ." Bulletin of the Kyiv National University of Technologies and Design. Technical Science Series 146, no. 3 (January 11, 2021): 15–24. http://dx.doi.org/10.30857/1813-6796.2020.3.1.

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Development and research of functionally-adequate target mechanisms of technological machines of light industry with application of applied CAE-programs. Used the apparatus of vector algebra; analytical and numerical methods for determining the position functions of planar mechanisms containing a structural group of the fourth class of the second order, based on the vector transformation of coordinates; random search method for metric synthesis of flat mechanisms; methods of computer visualization and animation of kinematic schemes of flat mechanisms of higher classes. Mathematical models describing the position functions of the mechanism of eyelets of a warp knitting machine containing a structural group of the fourth class of the second order with rotating kinematic pairs in the form of angles of moving links, free vectors constructed on these links and radius vectors of characteristic points of the mechanism as a function of the angle of rotation of the master crank. The geometrical parameters of the flat six-link mechanism of eyelets for the warp knitting machine containing the structural group of the fourth class of the second order with rotating kinematic pairs as a result of metric synthesis of the mechanism by random search in CAE-program are determined; computer circuit modeling of the obtained mechanism is performed; graphs of visualization and animation of the kinematic scheme of the received mechanism are constructed; identification of the kinematic scheme of the obtained mechanism for compliance with the accepted structure; the received graph of function of position of an auricular needle of the mechanism of the fourth class; the functions of the position of the eye needle of the new mechanism and the mechanism of the basic knitting machine OV-7 are compared. The structure of a flat six-link mechanism, containing structural groups of the fourth class of the second order with rotating kinematic pairs, is proposed for use as a drive in a warp knitting machine on the example of the mechanism of oscillating movement of eyelets. The geometric dimensions of the moving parts of the functionally adequate mechanism of the fourth class for the drive of the eye needles of the basic knitting machine are determined. Software blocks for automated computer metric synthesis and calculation of link angles and radius vectors of characteristic points of the mechanism in the CAE program have been created. Practical Value is to use the results for the design and construction of flat mechanisms of the fourth class with rotating kinematic pairs of warp knitting machines, in which the working bodies make stops during the work process.

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Dissertations / Theses on the topic "Rotating mechanism"

1

White, David Allen. "Development of a high-speed rotating bar mechanism." Thesis, This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-12172008-063626/.

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2

Yang, Chunping. "Rotating Drum Biofiltration." University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1092668752.

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Lunka, Alex A. "Development of a Novel Air-to-Liquid Mass Transfer Mechanism." Ohio University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1415121834.

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4

Begáň, Matej. "Kočka šrotového jeřábu - otočná část." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-442799.

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The diploma thesis deals with a design of a rotating part of a crane trolley of a scrap crane with a load capacity of 110,000 kg, which is situated in an exterior environment. The aim of the diploma thesis is a design and calculation verified design of the lifting mechanism, rotation mechanism and the design of a spacious traverse, which is used for the manipulation of the scrap trough and casting ladle.

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Ban, Kyunha. "Mechanism and Significance of Slip and New Mixing Elements During Flow in Modular Intermeshing Co-Rotating Twin Screw Extruders." University of Akron / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=akron1218132059.

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Anza, Inigo. "Synthesis of Aluminum-Titanium Carbide Nanocomposites by the Rotating Impeller Gas-Liquid In-situ Method." Digital WPI, 2016. https://digitalcommons.wpi.edu/etd-dissertations/376.

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"The next generation of aluminum alloys will have to operate at temperatures approaching 300°C. Traditional aluminum alloys cannot perform at these temperatures, but aluminum alloys reinforced with fine ceramic particles can. The objective of this research is to develop a process to synthesize Al-TiC composites by the Rotating Impeller Gas-Liquid In-situ method. This method relies on injecting methane into molten aluminum that has been pre-alloyed with titanium. The gas is introduced by means of a rotating impeller into the molten alloy, and under the correct conditions of temperature, gas flow, and rotation speed, it reacts preferentially with titanium to form titanium carbide particles. The design of the apparatus, the multi-physics phenomena underlying the mechanism responsible for particle formation and size control, and the operation window for the process are first elucidated. Then a parametric study that leads to the synthesis of aluminum reinforced with TiC microparticles and nanoparticles is described. Finally, potential technical obstacles that may stand in the way of commercializing the process are discussed and ways to overcome them are proposed. "

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Anand, Vijay G. "Rotating Detonation Combustor Mechanics." University of Cincinnati / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1530798871271548.

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Pandravada, Ratnam. "Kinematics and motion planning of a rolling disk between two planar manipulators." Ohio : Ohio University, 1996. http://www.ohiolink.edu/etd/view.cgi?ohiou1178049004.

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Briega-Martos, Valentín. "Unraveling the oxygen reduction reaction mechanism: occurrence of a bifurcation point before hydrogen peroxide formation." Doctoral thesis, Universidad de Alicante, 2019. http://hdl.handle.net/10045/102311.

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En la presente tesis doctoral se realiza un estudio detallado sobre el mecanismo de la reacción de reducción de oxígeno (ORR) en electrodos monocristalinos de platino. Para ello, se han realizado medidas electroquímicas usando la configuración de electrodo rotatorio de menisco colgante (HMRDE) con superficies con distinta estructura superficial y variando condiciones de la disolución de trabajo como el pH, fuerza iónica o la ausencia o presencia de bromuros. La conclusión principal que se extra de estos experimentos es la posibilidad de la existencia de un punto de bifurcación en el mecanismo, implicando el intermedio OOH, antes de la formación de peróxido de hidrógeno. Además, también se estudia la ORR y la reacción de oxidación de ácido fórmico en electrodos monocristalinos de Pt en presencia de acetonitrilo, como estudio previo al estudio de estas reacciones en disolventes orgánicos con pequeñas cantidades de agua. Por último, se estudia la ORR en un Aza-CMP, lo cual permite obtener información fundamental que se puede aplicar en estudios sobre el mecanismo de la ORR en los sitios activos de materiales de carbón funcionalizados con nitrógeno.

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Lumbers, Jeremy. "Rotating biological contactors : mechanisms, modelling and design." Thesis, Imperial College London, 1988. http://hdl.handle.net/10044/1/47161.

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Books on the topic "Rotating mechanism"

1

service), ScienceDirect (Online, ed. Rotating flow. Amsterdam: Elsevier, 2011.

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2

Boubnov, B. M. Convection in Rotating Fluids. Dordrecht: Springer Netherlands, 1995.

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3

Pietraszkiewicz, Wojciech, ed. Finite Rotations in Structural Mechanics. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82838-6.

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4

Rotating fluids in engineering and science. Boston: Butterworth-Heinemann, 1993.

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5

Lappa, Marcello. Rotating thermal flows in natural and industrial processes. Hoboken, New Jersey: Wiley, 2012.

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6

Gapaillard, Jacques. Et pourtant, elle tourne!: Le mouvement de la terre. Paris: Seuil, 1993.

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7

C, Huang T., and American Society of Mechanical Engineers. Design Engineering Division., eds. Rotating machinery and vehicle dynamics: Presented at the 1991 ASME design technical conferences. New York: American Society of Mechanical Engineers, 1991.

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8

Wiegand, Ray. Spinal biomechanics: Graphical pattern analyses of vertebra body rotation. Acton, Ma: Spinal Corrective Research, Inc., 1989.

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9

1955-, Goodwin Michael J., ed. Rotordynamics '92: Proceedings of the International Conference on Rotating Machine Dynamics, Hotel des Bains, Venice, 28-30 April 1992. London: Springer-Verlag, 1992.

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10

Anderson, R. D. Advanced propfan engine technology (APET) definition study, single and counter-rotation gearbox/pitch change mechanism design. [Washington, DC: National Aeronautics and Space Administration, 1987.

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Book chapters on the topic "Rotating mechanism"

1

Dosaev, Marat, Liubov Klimina, Anna Masterova, Vitaly Samsonov, and Yury Selyutskiy. "Counter-Rotating Savonius Wind Turbine." In New Trends in Mechanism and Machine Science, 413–20. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-55061-5_47.

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Pires, Ingrid, Bruno C. Cayres, Djenane C. Pamplona, and Hans I. Weber. "Torsional Friction-Induced Vibrations in Slender Rotating Structures." In Advances in Mechanism and Machine Science, 3449–58. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-20131-9_340.

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Bottin, Matteo, Giulio Rosati, and Giovanni Boschetti. "Analytical Movement Optimization of Dual-Arm Planar Robots with Rotating Platform." In Mechanism Design for Robotics, 3–11. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-75271-2_1.

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Kudaibergenov, Askar K., Askat K. Kudaibergenov, and L. A. Khajiyeva. "Analysis of the Stress-Strain State of Rotating Drill Strings with a Drilling Mud." In Advances in Mechanism Design III, 114–22. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-83594-1_12.

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Irfan, Muhammad, Viktor Berbyuk, and Håkan Johansson. "Dynamics and Pareto Optimization of a Generic Synchronizer Mechanism." In Rotating Machinery, Hybrid Test Methods, Vibro-Acoustics & Laser Vibrometry, Volume 8, 417–25. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-30084-9_38.

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Neagoe, Mircea, Radu Saulescu, and Codruta Jaliu. "Power Flow Modelling in a Planetary Speed Increaser for Wind Turbines with Counter-rotating Electric Generator." In Advances in Mechanism and Machine Science, 957–66. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-20131-9_95.

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Horve, Leslie A. "Understanding The Sealing Mechanism Of The Radial Lip Seal For Rotating Shafts." In Fluid Sealing, 5–19. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2412-6_2.

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Prydalnyi, Borys. "The Dynamic Model of the Automatic Clamping Mechanism with a Rotating Input Link." In Lecture Notes in Mechanical Engineering, 95–103. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77719-7_10.

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Kiciński, Jan. "Non-linear Modelling of the Rotating Machine in Technical Diagnostics. The Concept of Adequacy Intervals and Weight Functions in the Identification Procedure." In Advances in Mechanism and Machine Science, 3395–409. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-20131-9_335.

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Zinnecker, Hans. "A Binary Star Formation Mechanism Through The Fragmentation of Prolate Dense Cores Rotating end over end." In Fragmentation of Molecular Clouds and Star Formation, 526–28. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3384-5_96.

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Conference papers on the topic "Rotating mechanism"

1

Fujioka, Yasuo, and Tomotsugu Sakai. "Rotating Loosening Mechanism of Nut Connecting Rotary Disc Under Rotating-Bending Force." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-42215.

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There are fastened structures composed of rotary disc and shaft, which are fastened with bolts and nuts with tapered bearing surfaces. Those are loaded with rotating-bending force. It has been difficult to explain clearly the rotating loosening mechanism of such joint’s nuts by the previously proposed mechanism. In this study, the rotating mechanism of this nut was investigated from theoretical and experimental view points. Finally two types of mechanisms were derived. One is as follows: High pressure contact area is formed by external load oriented in the radial direction of a disc. It gives very small difference of radii between the bearing surface of disc and that of nut. Then, with the revolution of the disc, it makes occurrence of two friction torques in opposite direction, which are Tw and Ts torques on bearing and on threads respectively. When revolving disc, relative rotating direction of nut is dominated by bigger torque of Tw and Ts. If Tw is bigger than Ts, the rotating direction of nut is the same as the disc revolution. If Ts is bigger than Tw, the rotating direction is opposite to disc revolving direction. Taking into consideration this mechanism, some tests were carried out by changing magnitude of the friction coefficients both of bearing surface and of threads surface with greasing and degreasing intentionally. Loosening and tightening rotations were confirmed to occur just as predicted from the above mentioned mechanism. The other is due to the eccentricities caused by dimensional errors around the bolt, the nut and the tapered bearing surface of rotary disc. In this case, the direction of the force transmitted through the high pressure contact area changes from the center of bolt axis. So, the transmitted force can cause the torque which loosens and tightens the nut during one revolution of rotary disc, therefore relative rotation of nut results in small fluctuating of loosening and tightening. Combining two types of mechanisms, repeating small angle of loosening and tightening, nuts are rotated inclined to loosening or tightening direction after many revolutions of disc.

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2

Chundong Jiang, Haipeng Jia, Lijun Qin, Taihang Du, Ping Zhang, and Chunbo Jiang. "Topology optimization and control of rotating compliant mechanism." In 2009 Chinese Control and Decision Conference (CCDC). IEEE, 2009. http://dx.doi.org/10.1109/ccdc.2009.5193606.

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Shi, Ling, Yufeng Chang, and Hui Zhang. "Mechanism Analysis on Rotating Fiber for Particles Removal." In 2018 3rd International Conference on Modelling, Simulation and Applied Mathematics (MSAM 2018). Paris, France: Atlantis Press, 2018. http://dx.doi.org/10.2991/msam-18.2018.52.

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Côté, Patrice, Mélanie Leclerc, Mathieu Demers, Pierre Bastien, and Olivier Hernandez. "POMM: design of rotating mechanism and hexapod structure." In SPIE Astronomical Telescopes + Instrumentation, edited by Suzanne K. Ramsay, Ian S. McLean, and Hideki Takami. SPIE, 2014. http://dx.doi.org/10.1117/12.2056991.

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Huang, Paul Xiubao, and JianAn Yin. "From Rotating Stall to Surge: A Shock Tube Mechanism." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-94128.

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Compressor surge is a complete breakdown in compression resulting in an abrupt momentary reversal of gas flow and the violent pressure fluctuation with relatively low frequency and high amplitude. It commonly exists in dynamic type turbo compressors, particularly axial compressor and jet engine, or turbo charger for reciprocating engines. It is generally accepted that surge is preceded by a rotating stall, a situation of a few stalled blades rotating around compressor annulus (cascade) with much higher frequency. In jet engine, violent surge event typically produces a frightening loud bang, lots of vibrations and could cause catastrophic structural failures if not timely managed. Naturally, as important matters as rotating stall and surge, there have been tremendous R/D efforts from academia, government and industry devoted to this area, especially since jet engines became the prime powerhouses for modern airplanes. Despite of all the efforts, there still seems to be a more urgent need to understand the physical characteristics of the transition from a rotating stall to surge that has mystified researchers due to its transient nature. Fundamental questions remain unanswered even today, such as: What exactly triggers the surge to take place from a rotating stall? What is the physical nature of a compressor system or a local incipient surge: is it a movement of wave or fluid particles or both? How to estimate the quantitative destructive forces of a severe surge, that is, the maximum possible surge strength? This paper attempts to answer these questions by applying the classical Shock Tube Theory to the transient process from rotating stall to surge. The Shock Tube analogy is established with the hypothesis (implied from experimental observations) that an instant zero through flow condition exists inside a stalled cascade cell or dynamic compressor that triggers surge. It is revealed that surge event consists of a pair of non-linear compression and expansion waves (CW & EW) that instantly reverse gas flow (IRFF) by the pushing force of upstream propagating CW and the pulling force from downstream travelling EW. The surge strength is shown to be proportional to the square root of the pressure ratio of the involved cascade or compressor. Surge Rules are deduced to predict the location of surge initiation, the minimum and maximum surge strengths, travelling directions and speed. Moreover, a pro-active control strategy called SEWI (Surge Early Warning Initiative) is proposed using the unique characteristics of CW-IRFF-EW formation of a cascade cell induced surge as precursors for subsequent warning and controls before the destructive compressor surge takes place.

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Song, Xianzhi, Gensheng Li, Zhongwei Huang, Laibin Zhang, Shouceng Tian, and Liu Cui. "Mechanism and Characteristics of Horizontal Wellbore Cleanout by Rotating Jets." In IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition. Society of Petroleum Engineers, 2012. http://dx.doi.org/10.2118/156335-ms.

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Hild, Francois, and Frederick A. Leckie. "Fiber Distribution in Reinforced Ceramic Rotating Discs." In ASME 1995 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/95-gt-094.

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Fiber pull-out of fiber reinforced brittle matrix composites is an indication of final failure. The onset of this failure mechanism can be predicted using Continuum Damage Mechanics. After deriving a damage model from a uniaxial approach, different configurations are analyzed through analytical and numerical (F.E. calculations) methods. An extension to fibers in two perpendicular directions is proposed and the failure strength of a rotating disc structure is estimated. The results of the calculations are used to define an optimal fiber distribution in the radial and circumferential directions.

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Umar, Muhammad, and Charles A. Garris. "On Mutual Deflection for the Radial Rotating Jet Pressure Exchange Mechanism." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-12836.

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The “Pressure exchange” is a novel concept in turbomachinery whereby two fluids, at different energy levels, come in direct contact with each other to transfer energy and momentum between them through non-steady interface pressure forces. The rotating jets of the high pressure primary fluid, often referred to as pseudoblades, resemble solid blades on the impeller of a conventional turbomachine. The low pressure secondary fluid, ahead of the pseudoblades, is pressurized by the action of interface pressure forces. The current paper seeks to provide an insight into the complex flow phenomena occurring inside the radial flow pressure exchange ejector. The primary mechanisms controlling the process are pressure exchange and mixing. The angular deviation, between an actual pseudoblade and the pseudoblade with no secondary fluid, was calculated for the first time. The results revealed that the angular deviation is small in the near field, where pressure exchange dominates, and becomes larger in the far field as the mixing layer tends to grow. If this new concept is shown to be viable for gas compression at sufficiently high pressure ratios, then, in refrigeration applications, it would enable environmentally benign refrigerants to replace the harmful chlorofluorocarbons (CFC) and reduce the effluence of greenhouse gases. Applications in many other areas, where conventional ejectors are currently used, are also possible.

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Beebe, Chip R., Mark J. Brooks, Michael W. Davis, Robert A. Klar, John M. Roberts, Peter W. A. Roming, Randall J. Rose, and Gregory S. Winters. "Development of rotating prism mechanism and athermalized prism mounting for space." In SPIE Optical Engineering + Applications, edited by Alson E. Hatheway. SPIE, 2013. http://dx.doi.org/10.1117/12.2024373.

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Ghassemi, Sepehr, and Dennis Hong. "Investigation of a Novel Continuously Rotating Knee Mechanism for Legged Robots." In 2018 15th International Conference on Ubiquitous Robots (UR). IEEE, 2018. http://dx.doi.org/10.1109/urai.2018.8441802.

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Reports on the topic "Rotating mechanism"

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Lim, Chjan. Dynamics and Statistical Mechanics of Rotating and non-Rotating Vortical Flows. Office of Scientific and Technical Information (OSTI), December 2013. http://dx.doi.org/10.2172/1110818.

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Krim, Jacqueline. Vapor-Phase Lubricants: Nanometer-Scale Mechanisms and Applications to Sub-Micron and Rotating Machinery. Fort Belvoir, VA: Defense Technical Information Center, February 1999. http://dx.doi.org/10.21236/ada361295.

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Krim, Jacqueline. Vapor-Phase Lubricants: Nanometer-Scale Mechanisms and Applications to Sub-Micron and Rotating Machinery. Fort Belvoir, VA: Defense Technical Information Center, February 1999. http://dx.doi.org/10.21236/ada387895.

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Farmer dies after becoming entangled in the rotating drive mechanism of a baler. U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, February 1997. http://dx.doi.org/10.26616/nioshsface96mn076.

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