Lessons in Applied MechanicsMacmillan, 1891 - 512 σελίδες |
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Σελίδα 4
... BAD is its angle . D RULE . The area of a sector is obtained by multiplying the area of the whole circle by the ratio of the angle of the sector to four right angles . Segment of a circle . — BCD ( Fig . 4 < APPLIED MECHANICS PRELIM .
... BAD is its angle . D RULE . The area of a sector is obtained by multiplying the area of the whole circle by the ratio of the angle of the sector to four right angles . Segment of a circle . — BCD ( Fig . 4 < APPLIED MECHANICS PRELIM .
Σελίδα 5
... circle is diminished in the ratio b / a , hence evidently so is the whole area . b .. Area of ellipse = τa2 × == παι . a Hence one rule will suffice both for ellipse and circle CHAP .. MENSURATION & CURVE CONSTRUCTION 5.
... circle is diminished in the ratio b / a , hence evidently so is the whole area . b .. Area of ellipse = τa2 × == παι . a Hence one rule will suffice both for ellipse and circle CHAP .. MENSURATION & CURVE CONSTRUCTION 5.
Σελίδα 29
... ratio which the arc CC ' bears to the radius Oc , .. Circular measure of C'OC - CC ' ( arc ) ос This measure is independent of the position of C. For evidently arc DD ' 2π × OD = arc CC ' 2π X COC Each denominator representing the whole ...
... ratio which the arc CC ' bears to the radius Oc , .. Circular measure of C'OC - CC ' ( arc ) ос This measure is independent of the position of C. For evidently arc DD ' 2π × OD = arc CC ' 2π X COC Each denominator representing the whole ...
Σελίδα 35
... ratio is , as before , V_pitch A 2π - 9 the pitch being that of either spiral , i.e. in Fig . 33 , 2p not p . An important example is that of a screw propeller . Screw Propeller . - This consists of a very short piece of a screw ...
... ratio is , as before , V_pitch A 2π - 9 the pitch being that of either spiral , i.e. in Fig . 33 , 2p not p . An important example is that of a screw propeller . Screw Propeller . - This consists of a very short piece of a screw ...
Σελίδα 37
... ratio , 11:24 . 6. Cast - iron should be cut at from 12 to 16 feet per minute . The travel of a planing machine is 3 ft . , and it makes the return stroke at twice the speed of the cutting one . How many strokes per minute should it ...
... ratio , 11:24 . 6. Cast - iron should be cut at from 12 to 16 feet per minute . The travel of a planing machine is 3 ft . , and it makes the return stroke at twice the speed of the cutting one . How many strokes per minute should it ...
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action actual angular velocity applied axle balance beam bearing belt bending body boom called centre circle coefficient compression connecting rod consider constant crank effort crank pin curve cylinder diagram diameter distance draw effect elastic Energy exerted engine equal equation example feet flange foot length friction ft.-lbs girder given hence Hooke's Law inch joint length lift load mean mean effective pressure measure moment of inertia moving neutral axis obtain ordinates parallel piece piston position plane practically preceding pressure produced pull pulley radius radius of gyration relative motion represent resistance result revolution revolutions per minute right angles rivet rope rotating scale screw shaft shearing shown simply sliding pair speed steam stress stroke surface tension tons turning pair velocity ratio W₁ weight wheel whole
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