The Mechanical Principles of Engineering and ArchitectureJ. Wiley, 1875 - 699 стор. |
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Сторінка viii
... forces impressed upon it , then is the aggregate work of those which tend to accelerate the motion of the machine greater or less * If the direction of the pressure remain always parallel to itself , the space described may be any ...
... forces impressed upon it , then is the aggregate work of those which tend to accelerate the motion of the machine greater or less * If the direction of the pressure remain always parallel to itself , the space described may be any ...
Сторінка ix
... forces . under which a machine works , the vires inertia of its moving elements , and observing that one half of their aggregate vis viva is equal to the aggregate work of their vires inertiæ , it follows , by the principle of virtual ...
... forces . under which a machine works , the vires inertia of its moving elements , and observing that one half of their aggregate vis viva is equal to the aggregate work of their vires inertiæ , it follows , by the principle of virtual ...
Сторінка x
... forces which tend to accelerate the motion of a machine exceeds that of the forces which tend to retard it , then is the surplus work ( that done upon the driving points , above that expended upon the prejudicial resistances and upon ...
... forces which tend to accelerate the motion of a machine exceeds that of the forces which tend to retard it , then is the surplus work ( that done upon the driving points , above that expended upon the prejudicial resistances and upon ...
Сторінка xvii
... FORCES The Descent of a Body upon a Curve The Simple Pendulum Impulsive Force • The Parallelogram of Motion The Polygon of Motion The Principle of D'Alembert Motion of Translation • • Motion of Rotation about a fixed Axis The Centre of ...
... FORCES The Descent of a Body upon a Curve The Simple Pendulum Impulsive Force • The Parallelogram of Motion The Polygon of Motion The Principle of D'Alembert Motion of Translation • • Motion of Rotation about a fixed Axis The Centre of ...
Сторінка 1
... forces than one are applied to a body , and their respective tendencies to communicate motion to it counteract one another , so that the body remains at rest , these forces are said to be in EQUILIBRIUM , and are called PRESSURES . It ...
... forces than one are applied to a body , and their respective tendencies to communicate motion to it counteract one another , so that the body remains at rest , these forces are said to be in EQUILIBRIUM , and are called PRESSURES . It ...
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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