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  • Articles  (9)
  • 1990-1994  (6)
  • 1980-1984  (3)
  • Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics  (9)
  • 1
    Electronic Resource
    Electronic Resource
    Three-dimensional frictionless contact between layered elastic bodies and incorporating sharp edges (1991)
    Springer
    Computational mechanics 8 (1991), S. 257-268 
    Details
    ISSN: 1432-0924
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The roller coating system used in industry to apply paint to sheet metal involves two contacting rolling cylinders, one of which is rubber covered and through which the sheet metal travels. Of particular concern in the industry is the effect of high pressures upon the flow of paint at the ends of the rollers. In an elastohydrodynamic-lubrication analysis of the paint flow, it is the corresponding “dry-contact pressure” which is of major concern. In this paper we present a numerical solution to the three-dimensional contact problem for both smooth profiled layered bodies and those which involve sharp edges but in both cases ignoring the effects of curvature. The procedure adopted is based on one previously developed by a number of authors for homogeneous bodies. An understanding of the consequences of changing the operating variables is of prime importance in an industrial scenario. The numerical scheme described here provides complete measurements of both the deformation and the contact pressure distribution for given operating variables, which are the elastic properties and dimensions of both rolls and the total applied force.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00577379
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  • 2
    Electronic Resource
    Electronic Resource
    Utilization of nonlinear diffusion solutions forn-diffusion and power-law materials (1992)
    Springer
    Acta mechanica 91 (1992), S. 193-208 
    Details
    ISSN: 1619-6937
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary The equation ofn-diffusion, as originally formulated by J. R. Philip for various problems involving unsteady turbulent flows, applies directly to the one-dimensional flow of a non-Newtonian power-law fluid as well as indirectly to the laminar boundary layer flow of such fluids over a flat plate. The purpose of this note is to utilize a simple relation between one-dimensionaln-diffusion and nonlinear diffusion with power-law diffusivity such that ifp(x, t) denotes ann-diffusion pressure thenc(x, t)=|ϖp/ϖx| satisfies the nonlinear diffusion equation with power law diffusivity. This means in particular that the large number of solutions presently known for nonlinear diffusion can be utilized in the context ofn-diffusion. Known solutions ofn-diffusion are obtained via this procedure as well as newn-diffusion solutions, including the source solution and a solution of the problem of fluid withdrawal at a constant flow rate for a non-Newtonian fluid in a porous medium of infinite extent. Solutions arising from other exact nonlinear diffusion profiles are also investigated as well as the limiting case ofn-diffusion forn tending to infinity and the results are displayed graphically.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01194109
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  • 3
    Electronic Resource
    Electronic Resource
    On a nonlinear stefan problem arising in the continuous casting of steel (1994)
    Springer
    Acta mechanica 107 (1994), S. 183-198 
    Details
    ISSN: 1619-6937
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary The continuous casting process employed in the steel industry is a many faceted “big” industrial problem which has given rise to many sub-problems. Here, we examine the problem involving the determination of the solid-liquid steel interface and we develop and extend a previously proposed model, which incorporates heat transfer through two layers of solid and liquid mould powder and the interface between the solid powder and the mould wall. The problem simplifies to the classical Stefan problem except that the condition on the boundary is nonlinear. Integral formulation procedures are used to establish the normalized pseudo steady state temperature as an upper bound to the normalized actual temperature. The pseudo steady state approximation yields an upper bound on the interface position, which an independent numerical enthalpy scheme confirms to be an extremely accurate approximation for the parameter values occurring in practice. The present work is important since it provides a simple method for the prediction of the solid-liquid steel interface and a bounding procedure which can be used to validate other estimates.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01201828
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  • 4
    Electronic Resource
    Electronic Resource
    On the solution of boundary value problems for fourth order diffusion (1983)
    Springer
    Acta mechanica 46 (1983), S. 23-35 
    Details
    ISSN: 1619-6937
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary Higher order non-Fickean diffusion theories involve solving a fourth order linear partial differential equation. The purpose of this paper is to indicate available methods for the solution of typical boundary value problems. Basic uniqueness theorems are outlined for a general equation involving five parameters. These theorems indicate the types of boundary conditions which are reasonable for such equations. Fundamental source solutions are derived by means of Laplace and Fourier transforms. Solutions of the fourth order equation are also derived making use of known solutions in terms of classical diffusion functions for a corresponding system of second order partial differential equations. Explicit solutions of typical boundary value problems are deduced using the method of separation of variables.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01176762
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  • 5
    Electronic Resource
    Electronic Resource
    The inflation of thick-walled inner tubes and tires (1982)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 27 (1982), S. 11-19 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Approximate analytic results for two problems involving the inflation of rubber inner tubes and tires are summarized with a view to prompting a comparison of the theory with experimental results. The problems considered are the uniform inflation by internal pressure of a toroidal rubber inner tube or tire which is a perfect torus either in the deformed or undeformed state. The inner tubes or tires are assumed to be free to inflate, that is, they are assumed not to be constrained, for example by a wheel.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1982.070270102
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  • 6
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    ADENG: a programme for the transfer of adhesive bonding design technology of UK industry (1992)
    Elsevier
    Details
    Publication Date: 1992-01-01
    Print ISSN: 0261-3069
    Electronic ISSN: 1873-4197
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Elsevier
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  • 7
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    Utilization of nonlinear diffusion solutions forn-diffusion and power-law materials (1992)
    Springer
    Details
    Publication Date: 1992-09-01
    Print ISSN: 0001-5970
    Electronic ISSN: 1619-6937
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Springer
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  • 8
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    On a nonlinear stefan problem arising in the continuous casting of steel (1994)
    Springer
    Details
    Publication Date: 1994-03-01
    Print ISSN: 0001-5970
    Electronic ISSN: 1619-6937
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Springer
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  • 9
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    On the solution of boundary value problems for fourth order diffusion (1983)
    Springer
    Details
    Publication Date: 1983-03-01
    Print ISSN: 0001-5970
    Electronic ISSN: 1619-6937
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Springer
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