Ripper, William, 1853-1937 · London, New York [etc.] : Longmans, Green and co. · leaf 309
ng the differ-ence between the accele-ration and retardation ofthe moving parts in theupper and lower halves of the revolution. The fact that the sum of the inertia effects is zero, whatever the length of the connecting-rod, was first pointed out by M. Normand, of Havre. The proof is as follows :—… … F„ = - |co3 (e -1- 120°) -h - cos 2(0 -f ]20°)la)Vcj \ n ) F, = —^(cos (e + 240°) -f- cos 2(6 + 240°))a>-ra \ n ) BALANCING THE ENGINE. 293 F, 4. F, 4. F, = ^^a>V(co8 0 + co6(fl + 120°) + cos (0 + 240°;} +• ^^{cos 29^ - ^ (] ^ qn ^ + cos (20 + 240)+ cos (29 + 480°)) = —^(cos 0 + cos 0 CCS…
Steam-engines
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