- About
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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 1 to 10 of 604 (0.022 seconds)| 1 |
Static magnetic fields and nerve functionCupitt, Philip Leslie January 2001 (has links)
No description available.
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An investigation of partially ionised rotating plasmasSherman, J. C. January 1967 (has links)
No description available.
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Finite element analysis of rotating disksNigh, Gregory Lynn January 1980 (has links)
The finite element method is applied to the analysis of rotating disks. The equation governing the transverse deflection of a rotating disk is presented in both body-fixed and space-fixed coordinate systems. The quadratic stress triangle is used to determine the in-plane stress distribution which contributes to the out-of-plane stiffness. The out-of-plane problem is analyzed using elements based on the high precision 18 degree of freedom compatible plate bending triangle.
Free vibration problems of both axisymmetric and non-axisymmetric disks are solved in the body-fixed coordinate system. The numerical results obtained for axisymmetric disks show good agreement with results from other analyses. In a space-fixed coordinate system, the response of a rotating axisymmetric disk to a space-fixed transverse load is examined in some detail. It is found that there exists a fundamental critical rotation speed at which a component of a natural vibration mode becomes stationary in space, leading to an instability. This critical speed may be related to a non-dimensional stiffness parameter which, together with the non-dimensional hub radius, completely defines the disk geometry and stiffness. Thus, it appears that the critical value of the stiffness parameter is a function only of the non-dimensional hub radius. The response of the disk past this
critical stiffness is also examined. The results provide evidence of the existence of the higher critical speeds and indicate that the response is very sensitive to any approximations made with respect to the geometry of the disk or the in-plane stress distributions. / Applied Science, Faculty of / Civil Engineering, Department of / Graduate
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A methodology for determining relationships between jet engine disk part geometry and feature dimensionsGallaher, Shawn M. January 2002 (has links)
Thesis (M.S.)--Ohio University, November, 2002. / Title from PDF t.p. Includes bibliographical references (leaves 81-82).
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Some studies of rotating disk polarography in aqueous solutions and molten salts林景良, Lam, King-leung. January 1968 (has links)
published_or_final_version / Chemistry / Doctoral / Doctor of Philosophy
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Remote measurement of temperature using laser induced luminescenceBethell, Alison January 2002 (has links)
No description available.
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The dynamic modelling and active control of an annular discIrons, J. H. January 1988 (has links)
No description available.
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Structural investigation of high speed turbomachineryNaghshineh, Majid January 1995 (has links)
No description available.
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The hydromagnetic stability of Taylor Couette flowWillis, Ashley Phillip January 2002 (has links)
No description available.
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A numerical study of magnetic and non-magnetic geophysical fluid dynamicsFotheringham, Paul January 2000 (has links)
No description available.
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