Electrical machinery; a practical study course on installation, operation and maintenance (1921)
Annett, Fred Anzley · New York [etc.] McGraw-Hill book company · leaf 327
dyaround the circle, DG will equal the rate of motion at thisinstant of the body moving along the diameter AC. The righttriangles DEG and DON are similar (their correspondingsides being perpendicular); therefore DE : OD = GD :DN.But as DE was made equal to OD, it follows that GD mustequal DN. Since… … aacyjoiyjwn ■o^ro»33jD7 Fig. 342 Fig. 343 Figs. 342 and 343.—Relation between constant and harmonic motion. To illustrate, assume in Fig. 342 that the body traveling around thesemicircle ABC is moving at the rate of 15 ft. per sec, which is also themaximum rate along the diameter AC. Let the radius…
Electric machinery
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