Mechanical laboratory methods; the testing of instruments and machines in the mechanical engineering laboratory and in practice (1922)
Smallwood, Julian Chase · New York, D. Van Nostrand company · leaf 80
ts correct position insteadof lagging behind it on the return stroke. This is caused by thedeparture of the acceleration force from the variation assumedin Fig. 37, because of abnormal stretch of the cord and the con-sequent change in the drum velocities. 11 THE ENGINE INDICATOR 63 (f) The… … Fig. 40.—Correction of Indicator Diagrams. Problem Hi. The force of acceleration of the indicator drum variesdirectly with its stroke and the square of the engine R.p.m. If a drummotion with a 4-in. stroke is designed correctly to operate at 200 R.p.m.,how long should the stroke be to operate…
Mechanical engineering
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