This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1890 Excerpt: ...this is not usually the case. In shafts such as those of turbines, the direction of the stress never reverses, and remains generally either at zero ov its maximum value during the greatest part of its period of working. The frequency of variation is not great. In mill shafting there is greater frequency of variation, ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1890 Excerpt: ...this is not usually the case. In shafts such as those of turbines, the direction of the stress never reverses, and remains generally either at zero ov its maximum value during the greatest part of its period of working. The frequency of variation is not great. In mill shafting there is greater frequency of variation, but the direction of the stress is constant. Lastly, in many other cases the stress not only varies constantly, but also constantly reverses in direction. The following table of general values may serve as a guide: --134. Axles loaded transversely.--In designing axles of this kind, it is convenient to determine first the dimensions of the journals. If the axle is cylindrical, its diameter at any other point can be obtained from the journal diameter, if it is remembered that the diameters at any two points should be proportional to the cube roots of the bending moments at those points. If the section is not circular, it is still convenient to design a cylindrical axle, and then to replace the cylindrical sections by equivalent sections of any other form. If the axle rotates, the cylindrical form is the only one which is of equal strength in all positions. The mode of designing axles is best explained by examples. F1g. 140 135. Example I.--An axle is supported on two end journals, and carries a load, P, at a point between the journals. Fig. 140 shows the axle. The load P is in equilibrium with the reactions Q, R, acting at the centres of the journals. a b Q=P--_-R=P _--a+o a+o These are the loads for which the journals are to be calculated. From the rules in 115-124 will be determined d, d, I, /', and the projections which limit the end-play. The axle diameters which it is most necessary to determine are those moments at the fixed end...
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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This book has hardback covers. Ex-library, With usual stamps and markings, In fair condition, suitable as a study copy. Please note the Image in this listing is a stock photo and may not match the covers of the actual item, 850grams, ISBN:
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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Seller's Description:
PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.