Mechanics Applied to EngineeringLongmans, Green and Company, 1904 - 770 страници |
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Страница 112
... pressure on the lower part of the crane - post and pivot is W + W , + weight of structure . Then , neglecting the weight of the structure , the bending moment on the post at y will be --- WZ - W11 WI The moment W1 should be made equal ...
... pressure on the lower part of the crane - post and pivot is W + W , + weight of structure . Then , neglecting the weight of the structure , the bending moment on the post at y will be --- WZ - W11 WI The moment W1 should be made equal ...
Страница 150
... pressure between the teeth is evidently in the direction of a tangent to this arc at the point of contact . Hence , the greater the angle the tangent makes to a line EF ( drawn normal to the line joining the centres of the wheels ) ...
... pressure between the teeth is evidently in the direction of a tangent to this arc at the point of contact . Hence , the greater the angle the tangent makes to a line EF ( drawn normal to the line joining the centres of the wheels ) ...
Страница 162
... pressure . " Thus with an infinitely long connecting - rod the pressure at the end of the stroke required to accelerate or retard the reciprocating parts is equal to the centrifugal force ( see p . 19 ) , assuming the parts to be ...
... pressure . " Thus with an infinitely long connecting - rod the pressure at the end of the stroke required to accelerate or retard the reciprocating parts is equal to the centrifugal force ( see p . 19 ) , assuming the parts to be ...
Страница 163
... pressure in pounds per square inch , , rather than the total = p , where A = the area of the piston . We pressure P ; then will also put w = Р A W where w is the weight of the reciprocating A ' parts per square inch of piston . It is ...
... pressure in pounds per square inch , , rather than the total = p , where A = the area of the piston . We pressure P ; then will also put w = Р A W where w is the weight of the reciprocating A ' parts per square inch of piston . It is ...
Страница 167
... Pressure . An indicator diagram only shows the pressure of the working fluid in the cylinder ; it does not show the real pressure transmitted to the crank - pin , because some of the energy is absorbed in accelerating the reciprocating ...
... Pressure . An indicator diagram only shows the pressure of the working fluid in the cylinder ; it does not show the real pressure transmitted to the crank - pin , because some of the energy is absorbed in accelerating the reciprocating ...
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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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