Journal of the Society of Mechanical Engineers
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Volume 28, Issue 104
Displaying 1-4 of 4 articles from this issue
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  • ON TOOTH PROFILES WITH REFERENCE TO THE PATH OF CONTACT
    Masao NARUSE
    Article type: Article
    1925 Volume 28 Issue 104 Pages 939-952
    Published: 1925
    Released on J-STAGE: August 01, 2017
    DOIhttps://doi.org/10.1299/jsmemagazine.28.104_939
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    In this paper, the form of a tooth profile, whose path of contact is a conic curve, is studied mathematically, and various forms of profile are derived as its special cases. First, the profile in an elliptic path of contact is obtained, and, as its special cases, the profiles in hyperbolic, parabolic, circular and straight paths of contact are derived. Next, the inverse curve of a conic section with respect to a focus, or the limacon, is taken as a path of contact, and some profiles, a circle, a straight line etc., are derived by changing the form of the limacon.
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  • ON THE TEMPERATURE AND STRESS DISTRIBUTIONS IN THE WALL OF A LONG HOLLOW CYLINDER SUBJECTED TO A PERIODIC FLOW OF HEAT
    Michijiro MAEKAWA
    Article type: Article
    1925 Volume 28 Issue 104 Pages 953-975
    Published: 1925
    Released on J-STAGE: August 01, 2017
    DOIhttps://doi.org/10.1299/jsmemagazine.28.104_953
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    Using the Fourier conduction equation the temperature distribution in the wall of a long hollow cylinder is derived, both sides of the cylinder being considered as filled up with fluids of different temperatures, that of the inner (outer) fluid varying periodically while that of the outer (inner) fluid remains unchanged. The calculation is conducted by the aid of the the Ber and Bei functions and the solution is expressed in a comparatively simple form so that its physical meanings can easily be understood. The obtained temperature distribution is applied to the formulae of the therma stress to find its state in this case. Consequently it is pointed out that the stress is the most severe at the surface in contact with the fluid of varying temperature.
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  • A FURTHER STUDY ON PIPE LAGGING
    Kazuo KUMABE
    Article type: Article
    1925 Volume 28 Issue 104 Pages 976-997
    Published: 1925
    Released on J-STAGE: August 01, 2017
    DOIhttps://doi.org/10.1299/jsmemagazine.28.104_976
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    A supplement to the previous paper on the same subject by the author. The subject is extended to more general case, i.e. for heating and cooling period. The chief object of the investigations is to find the law governing the loss of heat in such cases, and foundamental equations under suitable boundary conditions are solved. The conclusion is that, as far as the pipe lagging is concerned, practically always the ordinary equation for loss of heat in equilibrium state of heat will serve to the calculation of loss of heat. In the paper, the value of temperature to be inserted in the formula is discussed for several cases, and the error due to simplified calculations is also investigated.
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  • [title in Japanese]
    [in Japanese]
    Article type: Article
    1925 Volume 28 Issue 104 Pages 998-1011
    Published: 1925
    Released on J-STAGE: August 01, 2017
    DOIhttps://doi.org/10.1299/jsmemagazine.28.104_998
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