水車渦卷匣の強さの概算
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概要
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The Spiral Casing is one of the heaviest pieces among the machine elements that constitute the Francis Turbine and it is also subjected to heavy stresses due to hydraulic pressure, sometimes accompanied with severe hammering actions. Owing to the complexity of the form, it is not easy to make beforehand the exact calculation on this subject, but I think it would be of some use even if we could get a rough estimation of the values os the internal stresses under possible working conditions and therefore have endeavoured to find out the approximate solution of this question. Below is disoussed the problom as an applied case of the formulae of the strength of curved beam and I hereby introduce a few cases of actual plants in this country as numerical examples.
- 一般社団法人日本機械学会の論文
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