From the otating shapt shown below, a porce OF l00 N was pulled to re duce the chapt's angular spee d though its cables. What is the maximum cable tension ip the chapt otates in a Counter clockwh direction ? use coeppicient of Friction on shapt equal to D.2
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- The driving shaft of a Hool joint rotates at a uniform sp. of 400 rpm. If the maxim variation in speed of the dri shaft is + 5% of the mean speed, determ the greatest permissible angle between axes of the shafts. What are the maxim and the minimum speeds of the driven shoThe figure shows an internal rim-type brake having an inside rim diameter of 11in and a dimension R of 3.5 in. The shoes have a face width of 1.25 in. Find the braking torque and the maximum pressure for each shoe if the actuating force is 205 Ibf, the drum rotation is counterclockwise, and f=0.32. The maximum pressure on the right-hand shoe parp is [ 16.99] @ psi. The maximum pressure on the left-hand shoe pa| H is [100.813 | @ psi. The torque on the right-hand shoe Tgis [ .056 | @ kipin. The torque on the left-hand shoe T is [ .332| @ kipin. Total braking torque Tiotal s [-3887] @ Kip-in.I need correct answer At stationary the tension in pulley 120N. Find tension in each side and Power trans when belt is on the point of slipping on smaller wheel. The wheel is 250mm diameter and fac F Friction 0.32. The angle of Lap 165⁰. The wheel speed 1200 C/min.
- Q1/ A 6-in-wide polyamide F-1 flat belt is used to connect a 2-in-diameter pulley to drive a larger pulley with an angular velocity ratio of 0.5. The center-to-center distance is 9 ft. The angular speed of the small pulley is 1750 rev/min as it delivers 2 hp. The service is such that a service factor Ks of 1.25 is appropriate. (a) Find Fc, Fi, Fla, and F2. (b) Find Ha, nfs, and belt length. (c) Find the dip.thick lnange be! The total torque required to turn the double threaded power screw is 55 N.m. If the screw turns at 285 rpm and the pitch of 4mm, find: A. The horsepower input of the power screw. B. The efficiency if the weight loaded is 10 kN.Q6/ A differential band brake has a force of 220 N applied at the end of a lever as shown in Figure. The coefficient of friction between the band and the drum is 0.35 The angle of lap is 180°. Find the maximum and minimum tension in the band, when a torque of 600 N-m is applied to the drum which rotates 150 clockwise. 220 N A 100- 200 All dimensions in mn. (Good Luck) دحسن حمودي مهدي مدرس المادة ASO porte e axis min er bos plg neowled 30 id 40 metni im - 214. arli
- The electric motor exerts a 500-N-m torque on the aluminum shaft ABCD when it is rotating at a constant speed. The torques exerted on pulleys Band Care as shown. Take a = 1.4 m, b= 0.9 m, and G= 27 GPa. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. 300 N. m 200 N. m 45 mm 44 mm 40 mm Im Determine the angle of twist between Band C. The angle of twist between Band Cis|ANSWER ASAP The worm gear rotating at 1250 rpm drives a worm wheel and whose velocity ratio is 12 to 1. A driving motor with 12 hp is used to supply the worm with worm pitch gear diameter of 3.5 in. Find the tangential force on the gear.Q1 Q5) Determine the principal dimensions of a cone clutch faced with lather to transmit 40 kW at 800 r.p.m. from an electric motor to an air compressor. Sketch a sectional front view of the clutch and provide the main dimensions. Assume that the semi-angle of the cone is 10°, the coefficient of friction is 0.3, mean diameter of cone is (7-10)d, where d is the diameter of the shaft, allowable normal pressure for lather and cast iron is 0.1 to 0.2 N/mm, shear stress 100 N/mm, load factor is 2 and the mean diameter to face width ratio is 6.
- The solid steel shaft is supported by the frictionless customer on D and E. This system The mile provided 5 kW of power in w dev / second and was connected to a motor at C. wwww ww www ww ww www wwwm www w A and B If gears get primary 2 kW and 3 kW, determine the minimum shaft diameter. w rotation speed and The safety shear stress is known and is included in the table below. pictures. wwww ww wwwwwwwww www wwwwww wwwwwwww wwwwwwwww w(cycle/second) = 100 tem(Mpa) = 40 3 kW 5 kW 2 kW A D B E C _A cone clutch is to transmit 10 KW at 600 r.p.m. the cone has aface angle of 10◦The width of the face is halfe of the mean radius and the max pressureis 0.1 N/mm²Assuming uniform wear and the coefficient of friction is 0.3, find theinner and outer radius and the axial force required on the clutch. Subject: Theory of MachinesA 6-in-wide polyamide F-1 flat belt is used to connect a 4-in-diameter pulley to drive a larger pulley with an angular velocity ratio of 3. The center-to-center distance is 8 ft. The angular speed of the small pulley is 1850 rev/min as it delivers 2 hp. The service is such that a service factor Ks of 1.25 is appropriate. (a) Find Fc, Fi, F1a, and F2. (b) Find Ha, nfs, and belt length. (c) Find the dip.