Elements of graphic dynamics; an elementary textbook for students of mechanics and engineering (1919)
Andrews, Ewart S. (Ewart Sigmund) · London, Chapman and Hall, Ltd. · leaf 135
124 GRAPHIC DYNAMICS angles to it; then BG, the subnormal, should give the ac-celeration to a scale 1 in. = —, where 1 in. = z ft. per sec. is y the velocity scale, and \\n. = y ft. the space Scale. To obtain the resultant effort, generally called in this case 4n«NV(i … i4lt^N«r Fig. 69.—Velocity and Acceleration Diagrams for Piston. the inertia force, we multiply the acceleration in feet per sec. Wper sec. by ^^ , where W is the weight of the reciprocating parts. We have also shown that the area of the curve ofresultant effort between two points gives us the…
Mechanics, Applied · Dynamics · Graphic methods
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