Mechanics Applied to EngineeringLongmans, Green and Company, 1904 - 770 страници |
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Страница 12
... parallel but opposite in direc- tion to F , must be applied to the body in the same plane . Thus , a couple is said to consist of two parallel forces of equal magnitude acting in opposite directions , but not in the same straight line ...
... parallel but opposite in direc- tion to F , must be applied to the body in the same plane . Thus , a couple is said to consist of two parallel forces of equal magnitude acting in opposite directions , but not in the same straight line ...
Страница 13
... parallel to one another . If a point be so chosen in a body that the sum of the moments of all the gravitation forces acting on the several particles about the one side of any straight line passing through that point be equal to the sum ...
... parallel to one another . If a point be so chosen in a body that the sum of the moments of all the gravitation forces acting on the several particles about the one side of any straight line passing through that point be equal to the sum ...
Страница 16
... parallel to them from their extremities to form a parallelogram , abdc , the diagonal of the parallelogram ad which passes through that point displacementy velocity will represent the resultant and direction . acceleration force in ...
... parallel to them from their extremities to form a parallelogram , abdc , the diagonal of the parallelogram ad which passes through that point displacementy velocity will represent the resultant and direction . acceleration force in ...
Страница 17
... parallel to the sides of a triangle , the point is in equi- librium under the action of those forces . This is known as the theorem of the " triangle of forces . " Many special applications of this method will be dealt with in future ...
... parallel to the sides of a triangle , the point is in equi- librium under the action of those forces . This is known as the theorem of the " triangle of forces . " Many special applications of this method will be dealt with in future ...
Страница 18
... parallel to OA ; thus the change of velocity is radial and towards the centre . We have shown on p . 17 that the velocity of P represents the acceleration of the point A ; then , as both circles are de- scribed in the same time ...
... parallel to OA ; thus the change of velocity is radial and towards the centre . We have shown on p . 17 that the velocity of P represents the acceleration of the point A ; then , as both circles are de- scribed in the same time ...
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acceleration angle angular velocity balance weight balls beam bearing bending bending moment bending-moment diagram body Calculate cent centre of gravity centrifugal circle coefficient compression connecting-rod constant crank Crown 8vo curve cylinder deflection diameter direction distance efficiency elastic limit ELEMENTARY energy engine equal feet per second Find flange flywheel force acting given governor hence horizontal Illustrations increase inertia length load material maximum mechanism metal method moment of inertia neutral axis orifice parallel pipe piston plane plate polygon pressure pulley pump R₁ radius of gyration ratio revolutions per minute rivets rotation shaft shear shear stress shown in Fig side speed square inch strain stress stroke strut surface tangent tensile tensile stress tension tons per square triangle turbine V₁ valve vanes varies vertical virtual centre W₁ Watt governor wheel Young's modulus
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