The Car Wheel Giving the Results of a Series of Investigations
The Car Wheel Giving the Results of a Series of Investigations
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In our eReader you can find the full English version of the book. Read The Car Wheel Giving the Results of a Series of Investigations Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Car Wheel Giving the Results of a Series of Investigations
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21 Sq. In.
CONTACTS BETWEEN 33-IN. CAST IRON WHEEL AND 100-LB. RAIL.
conducted several years ago it was found that the stresses in truck and body bolsters, while a car is in motion, are from 20 to 50 per cent, more than the stresses due to static loads alone. If this is true for parts located above the springs, there must certainly be an equal or greater increase at the point of contact be- tween the wheel and the rail. Then, too, the blows received from passing over low joints or worn frogs, w...ill raise the pressure between the wheel and the rail to a point which the tests under static loads have shown to be excessive. For example, the wheels, under a car of 100, 000 Ibs. Capacity with a 10 per cent, overload, carry an approximate static load of 18, 750 Ibs. Each. A drop of yV in. Is equivalent to a blow of about 97 foot Ibs. If the drop is checked by a yield in the rail of three-eighths of the amount of the drop (yf * in. ) the pressure on the rail will amount to 50, 000 Ibs. This is certainly excessive.
What to read after The Car Wheel Giving the Results of a Series of Investigations?
You can find similar books in the "Read Also" column, or choose other free books by George Little Fowler to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
21 Sq. In.
CONTACTS BETWEEN 33-IN. CAST IRON WHEEL AND 100-LB. RAIL.
conducted several years ago it was found that the stresses in truck and body bolsters, while a car is in motion, are from 20 to 50 per cent, more than the stresses due to static loads alone. If this is true for parts located above the springs, there must certainly be an equal or greater increase at the point of contact be- tween the wheel and the rail. Then, too, the blows received from passing over low joints or worn frogs, w...ill raise the pressure between the wheel and the rail to a point which the tests under static loads have shown to be excessive. For example, the wheels, under a car of 100, 000 Ibs. Capacity with a 10 per cent, overload, carry an approximate static load of 18, 750 Ibs. Each. A drop of yV in. Is equivalent to a blow of about 97 foot Ibs. If the drop is checked by a yield in the rail of three-eighths of the amount of the drop (yf * in. ) the pressure on the rail will amount to 50, 000 Ibs. This is certainly excessive.
What to read after The Car Wheel Giving the Results of a Series of Investigations?
You can find similar books in the "Read Also" column, or choose other free books by George Little Fowler to read onlineMoreLess
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