The steam engine and turbine; a text-book for engineering colleges (1911)
Heck, Robert Culbertson Hays, 1870- · New York, D. Van Nostrand company · leaf 351
O is well called the dead counterbalance:and the excess of Fs over F2 is then the free counterforce. Similar diagrams for the vertical shaking force >Svare given at IIand III. In the first, for no counterweight at all, the minus sign isneutralized by that of Fb, and the angle scale has its zero… … Fig. 192. — Shaking-force Curves. Diagrams on the developed crank circle are shown in Fig. 192.Here the first term of Eq. (194), {Fo — Fb) cos a, is laid off from thebase PQP in one direction, in a simple sine curve for each value of TD (Fo — Fb); and the second term, y Fo cos 2a, is measured from…
Steam-engines · Steam-turbines
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