Chatley, Herbert, 1885- · New York, D. Van Nostrand company · leaf 73
■ Use feet and pounds for measure-ments, and the result will be in foot-pounds turning or bending moment. The resisting moment of the framewill be as follows (rectangular frame) : 2 X pull or push in one bar (lbs.) Xdepth of frame (feet) = bendingmoment. Using the greatest bending moment,we have… … 65 (Push in top bar X S depth) + 2 (pullin each bottom bar X A depth) =bending moment.This leads to the following simple rule: Pull or push ) _J> x bending moment,in rods ) 4x depth For the transverse frame we have: Greatest bending moment === (L3 - W6) x-|, or (L4 - W8) x |- The monoplane type…
Airplanes
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