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Machinists' and draftsmen's handbook, containing tables, rules and formulas, with numerous examples explaining the principles of mathematics and mechanics as applied to the mechanical trades; intended as a reference book for all interested in mechanical work (1910)

Lobben, Peder, 1858- · New York, D. Van Nostrand company · leaf 315

An illustration from Machinists' and draftsmen's handbook, containing tables, rules and formulas, with numerous examples explaining the principles of mathematics and mechanics as applied to the mechanical trades; intended as a reference book for all interested in mechanical work, 1910, leaf 315
n in this example. Divide the surfaces into threerectangles, the upper flange, the web and the lower flange.Assume some line as the axis, for instance, the line n m, whichis the center line through the lower flange; multiply the area ofeach rectangle by the distance of its center of gravity from… … SOLVING FOR CENTER OF GRAVITY : (Area.) (Distance.) Area of upper flange = 2 X 1 = 2 square inches X 5 =10Area of web = 4 X 1 = 4 square inches X 2l/2 = 10 Area of lower flange =4X1 = 4 square inches X 0 =0 10 20 and 20 divided by 10 = 2 which is the distance from the centerof gravity of the lower…

Mechanical engineering

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