A 150-mm-wide polyamide F-1 flat belt is used to connect a 50-mm-diameter pulley to drive a...

A 150-mm-wide polyamide F-1 flat belt is used to connect a 50-mm-diameter pulley to drive a larger pulley with an angular velocity ratio of 0.5. The center-to-center distance is 2.7 m. The angular speed of the small pulley is 1750 rev/min as it delivers 1.5 kW. The service is such that a service factor Ks of 1.25 is appropriate.

(a) Estimate the centrifugal tension Fc and the torque T.

(b) Estimate the allowable F1, F2, and Fi.

c) Check the friction developmen

Expert Solution

samet mamat answered 2 years ago

In a belt drive the motor pulley has a diameter of 250 mm and rotates at...

In a belt drive the motor pulley has a diameter of 250 mm and rotates at 420 RPM. The machine pulley diameter is 350mm. a) Determine the linear velocity of the belt and the rotational frequency of the machine pulley. b) If the motor pulley accelerates from rest at 2 rads/s^2 how long does it take the motor pulley to reach 420 RPM.

) A 50 mm-diameter propeller was installed in a 150 mm-diameter water pipe and the propeller...

) A 50 mm-diameter propeller was installed in a 150 mm-diameter water pipe and the propeller speed was measured for a range of water discharge in the pipe. The water had a density and dynamic viscosity of 1000 kg/m3 and 0.00112 Ns/m2 respectively. The measured results were as follows: Q (litres/s): 12 28 45 63 95 120 160 180 N (rps): 5 10 15 20 30 40 60 80 Plot the dependence of propeller coefficient against propeller Reynolds number. A...

A horizontal Venturimeter with inlet diameter 300 mm and throat diameter 150 mm is used to...

A horizontal Venturimeter with inlet diameter 300 mm and throat diameter 150 mm is used to measure the flow of water. The pressure at inlet is 24 N/cm2 and the vacuum pressure (p2)at the throat is 320 mm of mercury. Find the discharge and velocity through the pipe .The value of Cd may be taken as 0.98.

A sleeve coupling is used to connect two 50 mm shafts whose safe shearing stress is...

A sleeve coupling is used to connect two 50 mm shafts whose safe shearing stress is 70 MPa. Design the sleeve when it is made of cast iron with an ultimate shearing stress of 140 MPa. Also determine the factor of safety for which the sleeve has been designed. The length of the key is half the length of sleeve and the section of the key is 12.5 mm x 12.5 mm, find the shearing and crushing stresses induced in...

Engineering graphic. 1. A circle of 50 mm diameter is resting on HP on end...

Engineering graphic. 1. A circle of 50 mm diameter is resting on HP on end A of it’s diameter AC which is 30 degree inclined to HP and makes 45 degree inclination to VP. Draw its projections

An 8 in. diameter grinding wheel, 1 in. wide, is used in a surface grinding operation...

An 8 in. diameter grinding wheel, 1 in. wide, is used in a surface grinding operation performed on a flat piece of low carbon steel. The wheel is rotating with a surface speed of 5,000 fpm, depth of cut of 0.002 in./pass and cross feed (w) of 0.15 in. The reciprocating speed of the workpiece is 20 ft/min., and the operation is performed dry. Letting C = 300 per in2 and the ratio of chip width to average undeformed chip...

1. An aluminum circular cylinder 50 mm in diameter with ends insulated is initially at 100◦C....

1. An aluminum circular cylinder 50 mm in diameter with ends insulated is initially at 100◦C. Approximate the temperature at the center of the cylinder after 2 s if the lateral surface is kept at 0◦C.For aluminum, k = 8.6 × 10−5m2 /s. 2. A circular cylinder 1 m in radius is completely insulated and has an initial temperature distribution 100r ◦C. Find an expression for the temperature as a function of r and t. Write integral expressions for at...

Question