The elements of the mechanics of materials and of power transmission (1911)
King, William Richard, 1852- · New York, J. Wiley & sons; [etc., etc.] · leaf 30
ing mo-ments of inertia and radii of gyration a few examples follow. We have then, i^ = y — ? in which the mass, M, the 20 THE ELEMENTS OF MECHANICS OF MATERIALS Example I. — To find the least moment of inertia and leastradius of gyration of the surface of a parallelogram. The least moment of… … Fig. 18. Suppose the surface to be divided into an infinite number ofstrips parallel to the axis, each of thickness dy. Consider oneof these strips distant y from the axis. Then Elemental area = Bdy, Second moment of elemental area = dl = By^dy. Then h>3n2 -f>i%-ii-i-B]-^ If the axis YY…
Mechanics, Applied · Power transmission
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