A differential band brake shown in Figure below, uses a woven lining having design values of H=0.3, pmax = 375 kPa, rotational speed 250 r.p.m, width of the band w 60 mm, the angle of wrap 270°, drum radiusr 200 mm. If the dimensions are given as: a = 500 mm, c = 150 mm, and s = 25 mm, determine the following: %3!

A differential band brake shown in Figure below, uses a woven lining having design values of H=0.3, pmax = 375 kPa, rotational speed 250 r.p.m, width of the band w 60 mm, the angle of wrap 270°, drum radiusr 200 mm. If the dimensions are given as: a = 500 mm, c = 150 mm, and s = 25 mm, determine the following: %3!

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: PROBLEM 1.1 Two solid cylindrical rods AB and BC are welded together at B and loaded as shown.…

A: a). Normal stress in rod AB, Sigma,AB=60*1000/(π/4*30^2)=84.88MPa(Tensile)

Q: a device that allows hot refrigerant vapor from the compressor discharge line to bypass the…

A: In cold weather, the hot gases from the compressor are most likely to drop their pressure below the…

Q: Thank you

A: given : t = 6.07mm = 0.00607 m F = 38.9 KN = 38900 N τ = 54.4 MPa = 54.4 x 106 N/m2

Q: When the pressure increases from 105 kPaa to 1006 kPaa and the volume decreases from 17 ft3 to 0.08…

Q: Determine the force in member BE of the loaded truss. The force is positive if in tension, negative…

Q: Calculate the y-coordinate of the centroid of the shaded area. The triangle is equilateral 30 71…

A: To determine the coordinate of the centroid of the composite area.

Q: Determine the force in member BE of the loaded truss. The force is positive if in tension, negative…

Q: 21. Two children sit on the opposite sides of a uniform seesaw which pivots in the center. Child A…

Q: How to calculate the flow area of a half inch elbow at 90 degrees?

A: Solution: Given Data: D=1/2 in To Find: Flow Area

Q: Can you give me an example solution on how to solve the p0/pf and vf/v0 problems? One example is…

A: Given data For the case with ρ0 = 1ρF = 4Volume of the object = 1000 cm3Mass of object = 1 kgBuoyant…

Q: y 165 mm 165 mm 135 mm: 130 mm 75 mm 130 mm Answers: (X, Y) = (i ) mm

Q: The 490-N force is applied to the 81-kg block, which is stationary before the force is applied.…

Q: Compare the thermal efficiency and turbine-exit quality (temperature if superheated) at the…

A: Given data Boiler pressure = P1 = 5 MPa = 50 bar Boiler exit temperature = T1 = 500°C Condenser…

Q: If oil with specific gravity of 0.80 is used to measure the atmospheric pressure, how high would it…

Q: The steel shaft with two different diameters rotates at 4.7 Hz. The power supplied to gear C is 74…

Q: A steady flow compressor handles 113.3 m/min of air measured at intake where p, = 97.22 kPaa and t =…

Q: NEED ANSWER ASAP! For the steel truss and loading shown, determine the magnitude of the…

Q: Show Computation

Q: 1. Det.moment of inertia. Y 3" r= 3" 1" 2"

Q: Compare the thermal efficiency and turbine-exit quality (temperature if superheated) at the…

Q: Q6. In the image shown below, the 3.1-kg collar is connected to a spring with unstretched length of…

A: Given m=3.1kglo=4.9mk=8N/mg=9.81m/s2

Q: The steel shaft with two different diameters rotates at 4.3 Hz. The power supplied to gear C is 48.5…

Q: The compound shaft is attached to a rigid wall at each end. For the bronze segment AB, the diameter…

Q: Q2/ Determine the forces at the pin joint (F) and the roller support (G) ? 20 KN 30KN 2m By 2m D 2m…

A: find the reactions at the support at F and G.

Q: The assembly is the same as in problem 2. It consists D of two rods AC and BD attached to the 100-lb…

Q: Well-insulated ducts operate at steady state with parameters as shown. The pressure is about 1 atm…

Q: The compound shaft is attached to a rigid wall at each end. For the bronze segment AB, the diameter…

Q: Determine the coordinates of the centroid of the trapezoidal area shown. 170 mm 255 mm 290 mm…

A: Answer: x = 117.6087 mm , y = 116.4130 mm

Q: 5 An ideal Rankine cycle with reheat uses water as the working fluid. As shown in the figure below,…

A: Given that, At state 1, Pressure at the inlet of turbine, P1=1600 lbf/in2,Temperature at the inlet…

Q: Q2/ Determine the forces at the pin joint (F) and the roller support (G) ? 20 KN 30KN 2m By 2m D 2m…

A: find the reactions at the support at G and F.

Q: The steel shaft with two different diameters rotates at 4.4 Hz. The power supplied to gear C is 73…

A: find the maximum shear stress in the shaft.

Q: 14. The purpose of a crankcase pressure regulator is to D. sp 20. A devi comp and d A. ensure that…

A: Crankcase pressure regulator is a device which prevents overloading of compressor.

Q: A child goes down a playground slide with an acceleration a. coefficient of kinetic friction, Uk,…

Q: 5) Refrigerant-134a at 320 kPa and 40°C undergoes an iso- thermal process in a closed system until…

Q: An open-topped rectangular metal boat containing sand as a ballast floats on water. The boat has a…

A: Note: As per policy, we can solve the first question from the multiple questions. Please resubmit…

Q: At the proportional limit, a 18 mm thick x 82 mm wide bar elongates 7.1 mm under an axial load of…

Q: A two-stage, double-acting compressor is to deliver 90 lb/min of air from 14.3 psia and 90 ̊F to a…

A: Solution: Given Data:

Q: 8. The wall of a cold storage room is composed of brick, concrete and cork insulation with thickness…

Q: Determine the moment of inertia of the shaded area about the x-axis in two different ways 3.8а fa a…

Q: Consider a water-ammonia binary vapor cycle consisting. In the steam cycle, superheated vapor enters…

Q: Two forces, each of magnitude P, are applied to the wrench. The diameter of the steel shaft AB is 16…

Q: Calculate the y-coordinate of the centroid of the shaded area.

Q: Q3/ For the figure shown below, .compute the centroid of the figure 6m 3m 4.5 m

Q: The steel shaft is formed by attaching a hollow shaft to a solid shaft. Determine the shear stress…

A: First consider the rigidity criterion. The angle of twist in the solid shaft can be expressed as…

Q: If the allowable stress is 124 MPa. What is the thickness of the tire to resist a pressure of 1.5…

Q: A glass in a form of a right circular cylinder is filled with water to the brim. It has a base…

A: Given: rA = 10 cm hA = 25 cm rB = 15 cm

Q: Determine the moment of inertia of the shaded area about the x-axis in two different ways. 3.2a…

Q: Determine the magnitudes of the pin reactions at A, B. and C caused by the weight of the uniform…

Q: A pilot of mass m executes a vertical dive then follows a semi-circular arc until it is going…

Q: The driveshaft of an automobile is being designed to transmit 233 kW at 3401 rpm. Determine the…

Concept explainers

Forming and Shaping

Metal forming is a category of metalworking process through which the material can be given the desired shape and size by subjecting it to plastic deformation, where the component undergoes bulk deformation process upon application of loads. Unlike the shearing and machining process, the material does not undergo up to a failure point as indicated in the stress-strain curve. Hence, the stresses induced during the forming process are greater than yield strength but less than the failure strength of the material. The process does not lead to the loss of material, so it can be said to be an economical process. During forming, the material is subjected to tensile forces, compressive forces, bending, and shearing loading conditions. The material should possess the property of ductility to undergo the forming process.

Question

100%

Machine design

Break design

A differential band brake shown in Figure below, uses a woven lining having design values of
H= 0.3, pmax = 375 kPa, rotational speed = 250 r.p.m, width of the band w 60 mm, the angle of
wrap o = 270°, drum radius r 200 mm. If the dimensions are given as: a = 500 mm, c = 150
mm, and s = 25 mm, determine the following:
|(1) The torque capacity.
(2) The actuating force.
|(3) The power capacity.
(4) The value of dimension s that would be cause the brake to be self-locking.
%3D
Hint:
Pmax F1/wr
-Band of width, w
Rotation
Drum
|F2

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Trending now

This is a popular solution!

Step by step

Solved in 6 steps with 7 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

The figure shows an internal rim-type brake having an inside rim diameter of 300 mm and a dimension R 5 125 mm. The shoes have a face width of 40 mm and are both actuated by a force of 2.2 kN. The drum rotates clockwise. The mean coefficient of friction is 0.28. a. Find the maximum pressure and indicate the shoe on which it occurs. b. Estimate the braking torque effected by each shoe, and find the total braking torque. c. Estimate the resulting hinge-pin reactions. 30°- 30°. R 120° 120° Pin Pin 30° 30° Figure 3: An internal rim-type brake
PROBLEMS Problem 1 (Dimensions in mm.) The block-type hand brake shown in the figure has a face width of 30 mm and a mean coefficient of friction of 0.25. For an estimated actuating force of 400 N, find the maximum pressure on the shoe and find the braking torque. 150 + 150R- 200- 90° -300- 45° 4 DIM in mm Rotation
Problem 7 The figure shows a band brake designed to prevent "backward" rotation of the shaft. The angle of wrap is 270°, the band width is 54 mm, and the coefficient of friction is 0.20. The torque to be resisted by the brake is 200 N.m. The diameter of the pulley is 210 mm (a) What dimension c1 will just prever backward motion? (b) If the rocker was designed with c1 = 25 mm, what is the maximum pressure between the band and drum at 200 Nm back torque? (c) If the back-torque demand is 136 Nm, what is the largest pressure between the band and drum? 54 mm P Rocker detail
+120- lo 300 A. Q12/ The simple band brake shown in figure is applied to a drum of diameter 240 mm. The drum is rotating at 300 rpm. The angle of contact of the band on the drum is 210 and u = 0.2. One end of the 100 N band is attached to a fixed end A and other end to the lever arm at a distance 120 mm from A. The lever length is 420 mm. Determine (a) the braking torque and (b) width of steel band if the maximum tensile stress in the band is not exceed 15 N/mm?. Take thickness of 240 band as 3 mm. All dimensions in mm. 11
Problem 4 The maximum band interface pressure on the brake shown in the figure is 620 kPa. Use a 350 mm diameter drum, a band width of 25 mm, a coefficient of friction of 0.30, and an angle-of-wrap of 270. Find the band tensions and the torque capacity. Rotation P₂
A single-block brake has the dimensions: cast-iron wheel of D =15 in, a = 32.5 in, 3.. c =10.5 in, e= 6.5 in width of contact surface = 2 in. The brake block lined with molded asbestos, subtends 75º, symmetrical about the center line; it is permitted to absorb energy at the rate of 0.4 hp/in², n = 200 rpm. Assume that p is constant. Compute a) PVm and the approximate braking torque, (b) the force W to produce this torque, (c) the mechanical advantage
A double shoe brake is shown in the figure below. The drum has a diameter of 500 mm and rotates at 250 rpm in the anti-clockwise direction when the applied force is (P) 1000 N and the coefficient of friction is 0.25. Determine: 100 es0o 250 300 All dimensions are in mm (You should upload the answers in the Link provided for submitting the assignment, typing the answers in the box provided below is optional). (1) The braking torque in N-m (ii) The amount of heat generated due to braking action in kJ/sec. 250 007
Q10/ A single block brake, as shown in figure, has the drum diameter 250 mm. The angle of contact is 90° and the coefficient of friction between the drum and the lining is 0.35. The other dimensions are as follows: a = 200 mm, 1 = 400 mm and b = 100 mm. If the torque transmitted by the brake is 70 N-m, find the force F required to operate the brake. ock is Irum.
A band brake is to absorb 5 Hp at 200 rpm. The maximum pressure of the lining and the drum is 120 psi. The angle of wrap is 3.6 radians, the width of the band is 3 inches and f = 0.15. Find the forces at the tight side. The diameter of the drum is at 8 inches. The correct answer is 2880 lbs. I just need a complete solution. Thank you!
An external long shoe drum brake is illustrated in Figure 2. The face width of the shoes is 60 mm and the maximum permissible lining pressure is 0.9 MPa. If the coefficient of friction is 0.30: 2.1 Determine the limiting actuating force. 2.2 Determine the torque capacity. Fa 250 mm- 300 mm- 45° 45 175 mm 200 mm Figure 2: Long-shoe brake
The following figure shows a belt brake system operating on a brake drum of the hoisting mechanism. It consists of a cylinder with a diameter of 325 mm, the end of which is the elastic belt connected to both ends of the elastic belt by a crank arm articulated at B and the angle of rotation = 225 degrees. And the coefficient of friction is 0.3 and the latching force is f. Find the necessary F to generate a torque of 350 on the cylinder while it is rotating in the direction shown? Note that s = c = 135mm a = 500mm. 35mm
(Q2) The following data are given for the drum brake shown in figure (1) Drum diameter is 400mm • Width of the shoe is 75mm • The coefficient of friction is 0.24 • The maximum pressure is 1MP.. • The drum rotates 3000rpm in counter clock wise direction. • The equivalent polar moment of inertia is 10 kg.m/s? Determine the minimum actuating force and the frictional torque. What is the time required for deceleration to the rest? 100 150 126 112 50 50 I Fig.(1)