The Mechanical Principles of Engineering and ArchitectureJ. Wiley, 1875 - 699 стор. |
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Сторінка xiii
... formula ; as also are the best dimensions of the base of the involute , with a view to the most perfect economy of power in the working of the wheels . The greater portion of the discussions in the third part of my work I believe to be ...
... formula ; as also are the best dimensions of the base of the involute , with a view to the most perfect economy of power in the working of the wheels . The greater portion of the discussions in the third part of my work I believe to be ...
Сторінка 42
... formula v = V ± ƒT ... . . ( 34 ) . The force of gravity is , in respect to the descent of bodies near the earth's surface , a constantly accelerating force , increasing the velocity of their descent by 324 feet in each successive ...
... formula v = V ± ƒT ... . . ( 34 ) . The force of gravity is , in respect to the descent of bodies near the earth's surface , a constantly accelerating force , increasing the velocity of their descent by 324 feet in each successive ...
Сторінка 43
... formula becomes v = VgT , the sign being taken according as the body is projected downwards or upwards . A VARIABLE accelerating force is that which communicates unequal increments of velocity in equal successive intervals of time ; and ...
... formula becomes v = VgT , the sign being taken according as the body is projected downwards or upwards . A VARIABLE accelerating force is that which communicates unequal increments of velocity in equal successive intervals of time ; and ...
Сторінка 45
... formula the sign is to be taken according as the motion is accelerated or retarded . 47. TO DETERMINE A RELATION BETWEEN THE SPACE DESCRIBED AND THE VELOCITY ACQUIRED BY A BODY WHICH IS PROJECTED WITH A GIVEN VELOCITY , AND WHOSE MOTION ...
... formula the sign is to be taken according as the motion is accelerated or retarded . 47. TO DETERMINE A RELATION BETWEEN THE SPACE DESCRIBED AND THE VELOCITY ACQUIRED BY A BODY WHICH IS PROJECTED WITH A GIVEN VELOCITY , AND WHOSE MOTION ...
Сторінка 60
... formula . After it has passed from this velocity to another V , there will be accumu- lated in it a number of units of work , represented by V ' , so that if its last velocity be greater than the first , there will have been added to ...
... formula . After it has passed from this velocity to another V , there will be accumu- lated in it a number of units of work , represented by V ' , so that if its last velocity be greater than the first , there will have been added to ...
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Загальні терміни та фрази
a₁ angle of resistance angular velocity axes axis beam body bordering upon motion centre of gravity circumference co-efficient compression conical surfaces corresponding crank crank arm cubic foot curve cylinder deflexion determined displaced fluid distance ditto driven wheel driving epicycloidal equal equation equilibrium evident exceedingly small extrados forces formula friction given horizontal hypocycloidal inclination inertia intersect involute lamina length limiting angle line of centres line of resistance load machine modulus moment of inertia moving n₁ n₂ neutral line observing obtain oscillation P₁ P₂ parallel passing perpendicular pitch circle plane point of application point of contact portion position radius repre respect resultant revolution revolve rupture space stability Substituting supposed surfaces of contact taken to represent tion tooth U₁ unguent vertical vis viva viva voussoirs wall weight whence it follows whilst whole