The electric motor shown in Fig. and delivers 50 in. Ib of torque to pulley A of a furnace blower by means of a V-belt. The effective diameters of the 36° pulleys are 5 in. The coefficient of friction is 0.30. De- termine the minimum distance a to prevent slipping of the belt if the rotation of the motor is clockwise. weighs 30 lb 8 in. 20 in.
Q: (iii) The drum described in part 1b (i) is driven by a belt attached to a motor. Figure (i) shows…
A: 1 Given,F1=force on tight side of beltF2=force on slack side of beltμ=coefficient of…
Q: A continuous rope is pulled by a drum A (d=5 inches) which rotates at constant speed in the…
A:
Q: A turnbuckle, which is used to adjust tension in cables, is subjected to tension T=184.7 N as shown.…
A: Given data: The tension in the cable, T = 184.7 N. The lead of screw, L = 0.005 m. The nominal…
Q: The wheel A and a block B are connected by a cable. The coefficient of friction of the wheel and the…
A:
Q: A 120-lb cabinet is mounted on casters that can be locked to prevent their rotation. The coefficient…
A:
Q: An 800 N-m couple is applied to the flywheel as shown. The coefficient of belt friction is 0.20. The…
A: Answer: (a) The tension TB is larger. (b) The angle of contact is 4.1888 radians. (c) The value of…
Q: The uniform rod has a weight W and rests on a smooth peg at C and against a wall at A. The…
A:
Q: In the given 15.0 meter slab and inclined 10 with the horizontal, the ends are resting on inclines…
A: Given data: In this problem, length of the slab is given along with the distances between axles as…
Q: Solve Prob. 8.113 assuming that the belt is looped around the pulleys in a figure eight.(Reference…
A: Given Data: The radius of the pully is: r = 60 mm The force acting on the pully A is: P= 900 N…
Q: Activity 2. What weight W is necessary to start the system of blocks shown to the right? The…
A: As no units given for the weight Assuming it in N(Newton) So now we have Wa=600 NWb=400 NAngle of…
Q: 6/28 The two uniform slender bars constructed from the same stock material are freely pinned…
A:
Q: A 25-hp, 1750-rpm electric motor drives a machine through a multiple V-belt. The size 5V belts has…
A:
Q: Activity 1. In the figure shown, the coefficient of friction is 0.25 for all surfaces of contact.…
A:
Q: Activity 1. In the figure shown, the coefficient of friction is 0.25 for all surfaces of contact.…
A: Consider the case when the 200 N weight is moving up. Draw the free body diagram: Consider the…
Q: A single plate clutch, with both sides effective has outer and inner diameters 300 mm and 200 mm…
A:
Q: 8. The coefficient of friction between the 50 Ib weight and the 300 lb weight is 0.5. The 300 Ib…
A: Given Mb=50lb P=16lb Find Acceleration of block B
Q: In an engine governor of the Porter type, the upper and lower arms are 200mm and 250 mm respectively…
A: The options given are wrong as no option matches.
Q: The two homogeneous bars AB and BC are connected with a pin at B and placed between rough vertical…
A: according to the given details in the question. WE NEED TO FIND-OUT ANGLE THETA
Q: Activity 1. In the figure shown, the coefficient of friction is 0.25 for all surfaces of contact.…
A:
Q: A four-wheel drive vehicle has a front solid drive axle suspension and a rear solid drive axle…
A: Solution: h = 20.5 in L = 108.5 in r = 15 in
Q: The uniform bar AB of weight W is leaning against a vertical wall. The coefficient of static…
A:
Q: H0.60 1. The compound pulley shown weighs 5 KN and has a centroidal radius of gyration of 2 meters.…
A:
Q: In an engine governor of the Porter type, the upper and lower arms are 200 mm and 250 mm…
A:
Q: In the given 15.0 meter slab and inclined 10°with the horizontal, the ends are resting on inclines…
A:
Q: 1. In the figure, two blocks are separated by a uniform strut attached to each block with…
A:
Q: [3]. Two weightless slender rods are connected at Cby pin and attached to the blocks A and B of mass…
A:
Q: Q.1) An arrangement of three boxes is shown in figure below. Box A weighs 20 N and rests on an…
A: Free body diagram of block A From FBD, the inclination angle of plabe on which A slides is given…
Q: A centrifugal clutch is to be designed to transmit 15 kW at 900 r.p.m. The shoes are four in number.…
A:
Q: The band brake of Fig. is used to control the rotation of a drum. The coefficient of friction…
A: Given, Coefficient of friction, μ=0.15 Weight of the handle, W=15 N Applied force to the end of the…
Q: A 6' В 8' Problem 6/12 Representative Problems 6/13 The uniform pole of length l and mass m is…
A:
Q: The band brake of Fig. is used to control the rotation of a drum. The coefficient of friction…
A: First, draw the free-body diagram of the handle: Now write the moment equation about the point 'O'…
Q: In an engine governor of the Porter type, the upper and lower arms having equal length, 200 mm and…
A:
Q: A lifting mechanism as shown has two single-lead 3/4“ diameter ACME thread screws. The thread…
A: Given Information: The diameter of the screws (d) = 3/4 inches The coefficient of friction (µ) =…
Q: 30 kg 50 kg Hg = 0.30- P 40 kg Hg = 0.40- 30 Maximum Value of P in Hg = 0.45 Newtons The three flat…
A: To determine the maximum value which P may have before any slipping takes place.
Q: The sling with a sliding hook is used to hoist a homogeneous drum. If the static coefficient of…
A: It is the product of the frictional force between two bodies and the force pushing them together.…
Q: The two uniform slender bars constructed from the same stock material are freely pinned together at…
A:
Q: The car shown in the figure below has a mass of 1878 kg. The coefficient of static friction between…
A:
Q: An 800 N-m couple is applied to the flywheel as shown. The coefficient of belt friction is 0.20. The…
A: Since there is friction present in the belt, thus the tensions in the belt at point A and B will not…
Q: The angle of static friction between the block with mass M and the plane is ∅ . Show that the…
A:
Q: held in horizontal position as shown by a wedge at B. If the coefficient of friction between the…
A:
Q: Solve Prob. 8.93 assuming that the normal force per unit area between the disk and the floor varies…
A: Given Weight of the floor polisher, Coefficient of kinetic friction, Draw the diagram of the…
Q: 75 mm D 150 mm -100 mm Let mC = 30 kg, and mD = 40kg A lever of negligible weight is loosely fitted…
A: Given data: Initial mass at 'C' is 30 kg. Mass at 'D' is: mD=40 kg. Diameter of the shaft is: d=75…
Q: (ii) The drum described in part 1b (i) is driven by a belt attached to a motor. Figure (i) shows the…
A: Given, Ft is the tension in the tight side. Fs is the tension in the slack side. θ is the angle of…
Q: The arms of a Hartnell governor are of equal length. When the sleeve is in the mid- position, the…
A:
Q: (iii) The drum described in part 1b (i) is driven by a belt attached to a motor. Figure (i) shows…
A:
Q: Two machines are coupled by means of a clutch plate with 2 contact surfaces. The plate has an inner…
A:
Q: A cross belt system gives a speed reduction of 6:1 and the centre distance between the pulleys is…
A: To find: The power transmitted by the drive. Given: The speed reduction ratio is D:d=6:1. Here, D…
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 2 images
- Solve Sample Problem 7.16 if the contact pressure under the polisher varies parabolically from p0 at r=0 to zero at r=R; that is, p=p0(1r2/R2).The square-threaded screw with a pitch of 10 mm and a mean radius of 18 mm drives a gear that has a mean radius of 75 mm. The static and kinetic coefficients of friction between the gear and the screw are 0.12 and 0.06, respectively. The input torque applied to the screw is C0=10Nm. Assuming constant speed operation, determine the output torque C1 acting on the gear.The coeffient of static friction between the uniform bar AB of weight W and the ground is 0.45. Find the smallest angle and the corresponding force P that would initiate simultaneous tipping and sliding of the bar.
- A uniform plank is supported by a fixed support at A and a drum at B that rotates clockwise. The coefficients of static and kinetic friction for the two points of contact are as shown. Determine whether the plank moves from the position shown if (a) the plank is placed in position before the drum is set in motion; and (b) the plank is first placed on the support at A and then lowered onto the drum, which is already rotating.Form the figure shown, a flexible belt placed around a rotating drum of 4-inch radius acts as a brake when the arm ABCD is pulled down by the force P. The coefficient of kinetic friction between the belt and the drum is 0.7. What force P that would result in a braking torque of 400 lb . in., assuming that the drum is rotating Neglect the weight of the counterclockwise. brake arm. 60° 4 in. 60° A B C -2 in.²4in. 2 in. 42×-| -2 D PIn an engine governor of the Porter type, the upper and lower arms are 200 mm and 250 mm respectively and pivoted on the axis of rotation. The mass of the central load is 15 kg, the mass of each ball is 2 kg and friction of the sleeve together with the resistance of the operating gear is equal to a load of 24 N at the sleeve. If the limiting inclinations of the upper arms to the vertical are 30° and 40°, find, taking friction into account, range of speed of the governor.
- 2. An engine developing 45 kW at 1000 rpm is fitted with a cone clutch built inside the flywheel. The cone has a face angle of 12.5° and a maximum mean diameter of 500 mm. The coefficient of friction is 0.2. The normal pressure on the clutch face is not to exceed 0.1 N/mm2. Determine: a. the face width required, and b. the axial spring force necessary to engage the clutch.The band brake of Fig. is used to control the rotation of a drum. The coefficient of friction between the belt and the 36° V-pulley is 0.15, and the weight of the han- dle is 15 N. If a force of 200 N is aPplied to the end of the handle, determine the maximum torque for which no mo- tion occurs if the torque is applied Counterclockwise. 150 mm T 200 N 60 150 mmi 675 mm 75 mmProblem#2: Form the figure shown, a flexible belt placed around a rotating drum of 4-inch radius acts as a brake when the arm ABCD is pulled down by the force P. The coefficient of kinetic friction between the belt and the drum is 0.7. What force P that would result in a braking torque of 400 lb. in., assuming that the drum is rotating counterclockwise. Neglect the weight of the brake arm. 60° A 2 in.- B 4 in. 60° 24-2in1- -2 in. D Р
- 4.) A flat belt makes contact with an 16 in. diameter pulley through half its circumference. If the coefficient of friction is 0.45 , and a torque of300ft−bsis to be transmitted, calculate the belt tensions. (please type answer not write by hend)Problem -03Dry FrictionA band belt is used to control the speed of a flywheel as shown in figure-3.Determine the magnitude of the couple being applied to the flywheel, knowing that the coefficient of kinetic friction between the belt and the flywheel is 0.25 and that the flywheel is rotating clockwise at a constant speed. Show that the same result is obtained if the flywheel rotates counterclockwise.A multiple V-belt drive is required to transmit 4 kW. The smaller pulley of the system is150 mm diameter, rotates at 200 rev/min, and has an angle of lap angle of 135°. Thegrove angle is 40° and the coefficient of friction between the belt and the pulleys is 0·3.If the maximum tension in any one belt is limited to 800 N, calculate:(a) The number of belts required. (b) The minimum tension in any one belt. (c) The required pre-tensioning of the belt. The centre-to-centre distance between the pulleys is 2 m.(d) Determine to the nearest mm, the required size for the larger pulley.(e) Find the approximate length of the belt