Results 181 to 190 of about 834 (262)
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Flux Pipe Pads with Improved Coupling Characteristics
2019 16th International Multi-Conference on Systems, Signals & Devices (SSD), 2019In this paper, flux pipe pad structure is discussed focusing on the analyzing effects of the number of sub-coils and separation between sub-coils on the coupling performance. Simulations show that the flux pipe pads with three or more sub-coils exhibit higher magnetic coupling coefficient as compared to traditional flux-pipe pads with two sub-coils. In
Emre Orta, Seyit Ahmet Sis
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Coupled neutronic, thermal-mechanical and heat pipe analysis of a heat pipe cooled reactor
Nuclear Engineering and Design, 2021Abstract Heat pipe cooled reactors are solid-state, high temperature reactors with significant thermal expansion which influences the neutronics and thermal analyses. The heat pipe operating conditions determine the heat transfer rates and temperature distribution which then affect the core neutronic and thermal–mechanical behavior, especially during
Yugao Ma +8 more
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Longitudinal Coupling Impedance for a Beam Pipe with a Cavity
IEEE Transactions on Nuclear Science, 1985A method is presented for the computation of the longitudinal coupling impedance of an azimuthally symmetric obstacle of general shape in a long beam pipe. The method involves a numerical calculation of the fields at mesh points in the cavity alone, from which the additive contribution of the cavity to the coupling impedance of the beam pipe can be ...
F. Neri, Robert L. Gluckstern
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Fatigue Life Improvement of Threaded Pipe Couplings
ASME 2010 Pressure Vessels and Piping Conference: Volume 5, 2010In this study it is demonstrated experimentally that the fatigue life of threaded pipe couplings can be improved by providing a more uniform load distribution over the threads of the coupling. The load distribution was changed by applying both global and local stiffness reductions to the coupling.
Jeroen Van Wittenberghe +3 more
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XLVI.Resonance in coupled pipes
The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, 1933Abstract The natural frequency of a resonator consisting of two coaxial cylindrical pipes of different diameters joined end to end, and closed at the larger end, was investigated theoretically by Aldis. The writer, using a series of such resonators closed at either end, found that the experimental results agreed closely with those obtained by Aldis's ...
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Coupling efficiency between light pipes of different dimensions
Applied Optics, 1976An expression for the transmitted fraction of the uniform and parallel radiation incident upon the coupler between two rectangular light pipes of different physical dimensions is derived. It is a function of the pipe dimension ratio and the angle of the incident radiation.
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COUPLED FLOW IN POROUS-MATERIAL LINED PIPES
Mathematical Models and Methods in Applied Sciences, 1991The slow motion of a fluid is studied in a duct of circular constant cross-section, whose internal wall is covered by a porous material permeable to the fluid, with an eye to the inlet phenomenon produced by arbitrary initial conditions at a given station. The coupled problem concerning the simultaneous Stokes flow in the central free region and Darcy
Edmondo Bassano, Paolo Luchini
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On the Coupled Extensional–Torsional Response of Flexible Pipes
Volume 3: Pipeline and Riser Technology, 2009In this paper, the coupled extensional-torsional behavior of a 4″ flexible pipe is studied. The pipe was subjected to pure tension and two different boundary conditions were considered: ends free and prevented from axially rotating. The response of the pipe is predicted with a three-dimensional nonlinear finite element (FE) model.
Carlos Magluta +3 more
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Couplings for glass pipes with protective thermoplastic shells
Glass and Ceramics, 1982The use of one kilometer of glass pipes in technological supply lines makes it possible to reduce by 16 tons the consumption of steel pipes, saving up to i!,000 rubles and obtaining several technical advantages as a result of the excellent corrosion resistance, health safety, and other favorable properties of glass. However, the further increase in the
Yu. V. Ratnikov, A. S. Mikhnevich
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Stress Cracks in Brass Pipe Couplings
2019Abstract Brass pipe couplings submitted for examination were deep-drawn from disks then annealed and subsequently cold threaded. Chemical analysis confirmed that the specified alloy Ms 63 was used for fabrication. Some of the pipe already showed fine cracks prior to their installation. In most cases however the cracks were detected after
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